S10-EV Mailing List Archive

Your post started out looking for information on the battery air flow
sensor. This is monitored by the BPM, not HTCM. Curious why the change in direction, or what the symptom is that youre
trying to investigate? On Mon, Jul 16, 2018 at 3:32 PM, Alan Martin <[email removed]> wrote:
> Your post started out looking for information on the battery air flow
> sensor. This is monitored by the BPM, not HTCM.
>
> Curious why the change in direction, or what the symptom is that youre
> trying to investigate?
>
>
>
> On Mon, Jul 16, 2018 at 10:49 AM, Steve Hawkins <[email removed]>
> wrote:
>>
>> Hi Kevin,
>>
>>
>>
>> Send me a PN and a picture of the module you need and I will see if I have
>> one in my parts collections.
>>
>>
>>
>> Steve
>>
>> www.tzev.com
>>
>>
>>
>>
>>
>> From: [email removed] [mailto:[email removed]]
>> Sent: Monday, July 16, 2018 7:35 AM
>> To: [email removed]; [email removed]
>> Subject: Re: [S10-EV] BP Flow sensor
>>
>>
>>
>> Thanks for the reply!
>>
>> I saw that and wish it was that easy. What I believe you have in that
>> photo is actually the outside air valve. It's purpose is to allow a small
>> amount of outside air into the box to purge any possible gases from the
>> battery box. On top of the battery box are discs, about 2" in diameter that
>> act like one way air valves to release any internal pressure. I'm not sure
>> when it's activated. Maybe during charging?
>>
>> As for my issue, after doing more testing with the Tech 2, I believe my
>> problem may be the Heating Thermal Control Module, (HTCM). That little box
>> under the driver's seat. Now I need to find one.
>>
>> Kevin
>>
>>
>>
>>
>>
>>
>>
>> In a message dated 7/15/2018 10:12:12 PM Eastern Standard Time,
>> [email removed] writes:
>>
>>
>>
>> The sensor is located in a small black tube around the fan. Look for a 2
>> position connector, grey, with yellow and orange wires going to it.
>>
>>
>>
>> Attached photo has it highlighted.
>>
>>
>>
>>
>>
>>
>>
>> On Sun, Jul 15, 2018 at 6:31 PM, Gil Dawson <[email removed]> wrote:
>>
>> Hi, Kevin--
>>
>>
>>
>> As you probably know, the battery box is sealed: no air flows in or out.
>> The blower inside the box circulates inside air through a cooling condenser
>> and around the batteries to cool the batteries, chiefly while charging. The
>> air flow sensor simply checks that the blower is working.
>>
>>
>>
>> The wires for all the sensors -- battery voltages and temperatures, plus
>> the air flow sensor -- exit the box independently of the wires that power
>> the blower. The blower requires three wires -- 12V+, chassis ground and a
>> TTL-level Pulse Width Modulated signal to control the speed of the blower.
>>
>>
>>
>> To get to the air flow sensor, I'm pretty sure you have to open the box.
>>
>>
>>
>> --Gil
>>
>>
>>
>> On Jul 15, 2018, at 12:48 PM, bjnkm--- via S10-EV
>> <[email removed]> wrote:
>>
>> Can anyone please tell me the location of the Air Flow Sensor for the
>> Battery Box? Manual says, before the blower fan. From under the truck, I can
>> barely see the power plug for the Blower but don't see any other electrical
>> plugs. Am I looking in the wrong place?
>>
>> Kevin
>>
>> _______________________________________________
>> S10-EV mailing list
>> [email removed]
>> https://pairlist5.pair.net/mailman/listinfo/s10-ev
>>
>>
>> _______________________________________________
>> S10-EV mailing list
>> [email removed]
>> https://pairlist5.pair.net/mailman/listinfo/s10-ev
>
>

My problem is my truck will not charge. After about a minute, the charger displays E2 or flashes "Delay". The problem is the pack blower will not run. I have 2 codes. 258, BP Blower air flow sensor circuit low and 267, Battery thermal module air flow performance.
One of the several steps in diagnosing the issue is to disconnect the flow sensor, which I couldn't find. Also, I can't power up the blower with the Tech 2 and the command request is always "0%", which lead me to believe it may not be the air flow sensor. 
However, if the air flow sensor fails the tests, it sends me to the HTCM section.
While reading through the HTCM section, I came across a "No Serial Data" situation in section 6A-40. It tells you to try to access the 3 modules with the Tech 2. BPCM, DMCM and HTCM. I can read the BPCM and DMCM but can not read anything from the HTCM. After following all of the steps, it says, "Replace the HTCM". That's where I'm at now.
Sorry if I confusing people but I was just trying to keep it short and simple. I have new batteries ready to go in but need to fix this first. And YES!, I'm a bit lost.
Kevin  
 
In a message dated 7/16/2018 3:35:42 PM Eastern Standard Time, [email removed] writes:   Your post started out looking for information on the battery air flow sensor. This is monitored by the BPM, not HTCM. Curious why the change in direction, or what the symptom is that youre trying to investigate? On Mon, Jul 16, 2018 at 3:32 PM, Alan Martin <[email removed]> wrote: > Your post started out looking for information on the battery air flow > sensor. This is monitored by the BPM, not HTCM. > > Curious why the change in direction, or what the symptom is that youre > trying to investigate? > > > > On Mon, Jul 16, 2018 at 10:49 AM, Steve Hawkins <[email removed]> > wrote: >> >> Hi Kevin, >> >> >> >> Send me a PN and a picture of the module you need and I will see if I have >> one in my parts collections. >> >> >> >> Steve >> >> www.tzev.com >> >> >> >> >> >> From: [email removed] [mailto:[email removed]] >> Sent: Monday, July 16, 2018 7:35 AM >> To: [email removed]; [email removed] >> Subject: Re: [S10-EV] BP Flow sensor >> >> >> >> Thanks for the reply! >> >> I saw that and wish it was that easy. What I believe you have in that >> photo is actually the outside air valve. It's purpose is to allow a small >> amount of outside air into the box to purge any possible gases from the >> battery box. On top of the battery box are discs, about 2" in diameter that >> act like one way air valves to release any internal pressure. I'm not sure >> when it's activated. Maybe during charging? >> >> As for my issue, after doing more testing with the Tech 2, I believe my >> problem may be the Heating Thermal Control Module, (HTCM). That little box >> under the driver's seat. Now I need to find one. >> >> Kevin >> >> >> >> >> >> >> >> In a message dated 7/15/2018 10:12:12 PM Eastern Standard Time, >> [email removed] writes: >> >> >> >> The sensor is located in a small black tube around the fan. Look for a 2 >> position connector, grey, with yellow and orange wires going to it. >> >> >> >> Attached photo has it highlighted. >> >> >> >> >> >> >> >> On Sun, Jul 15, 2018 at 6:31 PM, Gil Dawson <[email removed]> wrote: >> >> Hi, Kevin-- >> >> >> >> As you probably know, the battery box is sealed: no air flows in or out. >> The blower inside the box circulates inside air through a cooling condenser >> and around the batteries to cool the batteries, chiefly while charging. The >> air flow sensor simply checks that the blower is working. >> >> >> >> The wires for all the sensors -- battery voltages and temperatures, plus >> the air flow sensor -- exit the box independently of the wires that power >> the blower. The blower requires three wires -- 12V+, chassis ground and a >> TTL-level Pulse Width Modulated signal to control the speed of the blower. >> >> >> >> To get to the air flow sensor, I'm pretty sure you have to open the box. >> >> >> >> --Gil >> >> >> >> On Jul 15, 2018, at 12:48 PM, bjnkm--- via S10-EV >> <[email removed]> wrote: >> >> Can anyone please tell me the location of the Air Flow Sensor for the >> Battery Box? Manual says, before the blower fan. From under the truck, I can >> barely see the power plug for the Blower but don't see any other electrical >> plugs. Am I looking in the wrong place? >> >> Kevin >> >> _______________________________________________ >> S10-EV mailing list >> [email removed] >> https://pairlist5.pair.net/mailman/listinfo/s10-ev >> >> >> _______________________________________________ >> S10-EV mailing list >> [email removed] >> https://pairlist5.pair.net/mailman/listinfo/s10-ev > > _______________________________________________ S10-EV mailing list [email removed]://pairlist5.pair.net/mailman/listinfo/s10-ev
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Hi Kevin, This is noble work on your behalf. These trucks can be difficult to keep in line.
Good diagnosis.
I don’t know how other list members feel, but I enjoy reading the process of diagnosis as it’s a good education piece for possible future needs.
And, great to see the help and advice from the list. We all need that.
Next, I have my spare HTCM in hand.
Send me your address.
It is my only spare for my truck and projects, so how about I put it on loan to you?
You can test with it and use it, if needed, as long as I don’t need it for my truck at this moment.
Too many EV projects and my truck is not currently very high on my list.
A loan would also buy more time to find additional spares.
The only slightly bad news is that my truck has the same symptoms as yours!
Eeek. Good work. Steve From: [email removed] [mailto:[email removed]]
Sent: Monday, July 16, 2018 2:52 PM
To: [email removed]; [email removed]
Subject: Re: [S10-EV] BP Flow sensor My problem is my truck will not charge. After about a minute, the charger displays E2 or flashes "Delay".
The problem is the pack blower will not run. I have 2 codes. 258, BP Blower air flow sensor circuit low and 267, Battery thermal module air flow performance.
One of the several steps in diagnosing the issue is to disconnect the flow sensor, which I couldn't find. Also, I can't power up the blower with the Tech 2 and the command request is always "0%", which lead me to believe it may not be the air flow sensor.
However, if the air flow sensor fails the tests, it sends me to the HTCM section.
While reading through the HTCM section, I came across a "No Serial Data" situation in section 6A-40. It tells you to try to access the 3 modules with the Tech 2. BPCM, DMCM and HTCM. I can read the BPCM and DMCM but can not read anything from the HTCM. After following all of the steps, it says, "Replace the HTCM". That's where I'm at now.
Sorry if I confusing people but I was just trying to keep it short and simple. I have new batteries ready to go in but need to fix this first. And YES!, I'm a bit lost.
Kevin In a message dated 7/16/2018 3:35:42 PM Eastern Standard Time, [email removed]<mailto:[email removed]> writes: Your post started out looking for information on the battery air flow sensor. This is monitored by the BPM, not HTCM. Curious why the change in direction, or what the symptom is that youre trying to investigate? On Mon, Jul 16, 2018 at 3:32 PM, Alan Martin <[email removed]<mailto:[email removed]>> wrote: > Your post started out looking for information on the battery air flow > sensor. This is monitored by the BPM, not HTCM. > > Curious why the change in direction, or what the symptom is that youre > trying to investigate? > > > > On Mon, Jul 16, 2018 at 10:49 AM, Steve Hawkins <[email removed]<mailto:[email removed]>> > wrote: >> >> Hi Kevin, >> >> >> >> Send me a PN and a picture of the module you need and I will see if I have >> one in my parts collections. >> >> >> >> Steve >> >> www.tzev.com<http://www.tzev.com> >> >> >> >> >> >> From: [email removed]<mailto:[email removed]> [mailto:[email removed]<mailto:[email removed]?>] >> Sent: Monday, July 16, 2018 7:35 AM >> To: [email removed]<mailto:[email removed]>; [email removed]<mailto:[email removed]> >> Subject: Re: [S10-EV] BP Flow sensor >> >> >> >> Thanks for the reply! >> >> I saw that and wish it was that easy. What I believe you have in that >> photo is actually the outside air valve. It's purpose is to allow a small >> amount of outside air into the box to purge any possible gases from the >> battery box. On top of the battery box are discs, about 2" in diameter that >> act like one way air valves to release any internal pressure. I'm not sure >> when it's activated. Maybe during charging? >> >> As for my issue, after doing more testing with the Tech 2, I believe my >> problem may be the Heating Thermal Control Module, (HTCM). That little box >> under the driver's seat. Now I need to find one. >> >> Kevin >> >> >> >> >> >> >> >> In a message dated 7/15/2018 10:12:12 PM Eastern Standard Time, >> [email removed]<mailto:[email removed]> writes: >> >> >> >> The sensor is located in a small black tube around the fan. Look for a 2 >> position connector, grey, with yellow and orange wires going to it. >> >> >> >> Attached photo has it highlighted. >> >> >> >> >> >> >> >> On Sun, Jul 15, 2018 at 6:31 PM, Gil Dawson <[email removed]<mailto:[email removed]>> wrote: >> >> Hi, Kevin-- >> >> >> >> As you probably know, the battery box is sealed: no air flows in or out. >> The blower inside the box circulates inside air through a cooling condenser >> and around the batteries to cool the batteries, chiefly while charging. The >> air flow sensor simply checks that the blower is working. >> >> >> >> The wires for all the sensors -- battery voltages and temperatures, plus >> the air flow sensor -- exit the box independently of the wires that power >> the blower. The blower requires three wires -- 12V+, chassis ground and a >> TTL-level Pulse Width Modulated signal to control the speed of the blower. >> >> >> >> To get to the air flow sensor, I'm pretty sure you have to open the box. >> >> >> >> --Gil >> >> >> >> On Jul 15, 2018, at 12:48 PM, bjnkm--- via S10-EV >> <[email removed]<mailto:[email removed]>> wrote: >> >> Can anyone please tell me the location of the Air Flow Sensor for the >> Battery Box? Manual says, before the blower fan. From under the truck, I can >> barely see the power plug for the Blower but don't see any other electrical >> plugs. Am I looking in the wrong place? >> >> Kevin >> >> _______________________________________________ >> S10-EV mailing list >> [email removed]<mailto:[email removed]> >> https://pairlist5.pair.net/mailman/listinfo/s10-ev >> >> >> _______________________________________________ >> S10-EV mailing list >> [email removed]<mailto:[email removed]> >> https://pairlist5.pair.net/mailman/listinfo/s10-ev > > _______________________________________________ S10-EV mailing list [email removed]<mailto:[email removed]> https://pairlist5.pair.net/mailman/listinfo/s10-ev
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There are two part numbers for the HTCM
 
1997 27004713
 
1998 # 27004714
 
So if your going to try a used one, make sure its year correct
 
The last time I checked these were 600 dollars in 2009
 
Really Miss Jeff but what he told me in 2009 was he only was aware of
two legitimate HTCM module failures. One was due to water intrusion.
Jeff consider these a low failure part, but that was 9 years ago.
 
Don
 
 
 
In a message dated 7/17/2018 8:32:00 AM Pacific Standard Time, [email removed] writes:  
Hi Kevin,
 
This is noble work on your behalf.  These trucks can be difficult to keep in line.
Good diagnosis.
I don’t know how other list members feel, but I enjoy reading the process of diagnosis as it’s a good education piece for possible future needs. And, great to see the help and advice from the list.  We all need that.
Next, I have my spare HTCM in hand.
Send me your address.
It is my only spare for my truck and projects, so how about I put it on loan to you?
You can test with it and use it, if needed, as long as I don’t need it for my truck at this moment.
Too many EV projects and my truck is not currently very high on my list.
A loan would also buy more time to find additional spares.
The only slightly bad news is that my truck has the same symptoms as yours!
Eeek.
 
Good work.
 
Steve
 
From:[email removed] [mailto:[email removed]] Sent: Monday, July 16, 2018 2:52 PM
To:[email removed]; [email removed]
Subject: Re: [S10-EV] BP Flow sensor
 
My problem is my truck will not charge. After about a minute, the charger displays E2 or flashes "Delay". The problem is the pack blower will not run. I have 2 codes. 258, BP Blower air flow sensor circuit low and 267, Battery thermal module air flow performance.
One of the several steps in diagnosing the issue is to disconnect the flow sensor, which I couldn't find. Also, I can't power up the blower with the Tech 2 and the command request is always "0%", which lead me to believe it may not be the air flow sensor.
However, if the air flow sensor fails the tests, it sends me to the HTCM section.
While reading through the HTCM section, I came across a "No Serial Data" situation in section 6A-40. It tells you to try to access the 3 modules with the Tech 2. BPCM, DMCM and HTCM. I can read the BPCM and DMCM but can not read anything from the HTCM. After following all of the steps, it says, "Replace the HTCM". That's where I'm at now.
Sorry if I confusing people but I was just trying to keep it short and simple. I have new batteries ready to go in but need to fix this first. And YES!, I'm a bit lost.
Kevin 
 
In a message dated 7/16/2018 3:35:42 PM Eastern Standard Time, [email removed] writes:
 
Your post started out looking for information on the battery air flow sensor. This is monitored by the BPM, not HTCM. Curious why the change in direction, or what the symptom is that youre trying to investigate? On Mon, Jul 16, 2018 at 3:32 PM, Alan Martin <[email removed]> wrote: > Your post started out looking for information on the battery air flow > sensor. This is monitored by the BPM, not HTCM. > > Curious why the change in direction, or what the symptom is that youre > trying to investigate? > > > > On Mon, Jul 16, 2018 at 10:49 AM, Steve Hawkins <[email removed]> > wrote: >> >> Hi Kevin, >> >> >> >> Send me a PN and a picture of the module you need and I will see if I have >> one in my parts collections. >> >> >> >> Steve >> >> www.tzev.com >> >> >> >> >> >> From: [email removed] [mailto:[email removed]] >> Sent: Monday, July 16, 2018 7:35 AM >> To: [email removed]; [email removed] >> Subject: Re: [S10-EV] BP Flow sensor >> >> >> >> Thanks for the reply! >> >> I saw that and wish it was that easy. What I believe you have in that >> photo is actually the outside air valve. It's purpose is to allow a small >> amount of outside air into the box to purge any possible gases from the >> battery box. On top of the battery box are discs, about 2" in diameter that >> act like one way air valves to release any internal pressure. I'm not sure >> when it's activated. Maybe during charging? >> >> As for my issue, after doing more testing with the Tech 2, I believe my >> problem may be the Heating Thermal Control Module, (HTCM). That little box >> under the driver's seat. Now I need to find one. >> >> Kevin >> >> >> >> >> >> >> >> In a message dated 7/15/2018 10:12:12 PM Eastern Standard Time, >> [email removed] writes: >> >> >> >> The sensor is located in a small black tube around the fan. Look for a 2 >> position connector, grey, with yellow and orange wires going to it. >> >> >> >> Attached photo has it highlighted. >> >> >> >> >> >> >> >> On Sun, Jul 15, 2018 at 6:31 PM, Gil Dawson <[email removed]> wrote: >> >> Hi, Kevin-- >> >> >> >> As you probably know, the battery box is sealed: no air flows in or out. >> The blower inside the box circulates inside air through a cooling condenser >> and around the batteries to cool the batteries, chiefly while charging. The >> air flow sensor simply checks that the blower is working. >> >> >> >> The wires for all the sensors -- battery voltages and temperatures, plus >> the air flow sensor -- exit the box independently of the wires that power >> the blower. The blower requires three wires -- 12V+, chassis ground and a >> TTL-level Pulse Width Modulated signal to control the speed of the blower. >> >> >> >> To get to the air flow sensor, I'm pretty sure you have to open the box. >> >> >> >> --Gil >> >> >> >> On Jul 15, 2018, at 12:48 PM, bjnkm--- via S10-EV >> <[email removed]> wrote: >> >> Can anyone please tell me the location of the Air Flow Sensor for the >> Battery Box? Manual says, before the blower fan. From under the truck, I can >> barely see the power plug for the Blower but don't see any other electrical >> plugs. Am I looking in the wrong place? >> >> Kevin >> >> _______________________________________________ >> S10-EV mailing list >> [email removed] >> https://pairlist5.pair.net/mailman/listinfo/s10-ev >> >> >> _______________________________________________ >> S10-EV mailing list >> [email removed] >> https://pairlist5.pair.net/mailman/listinfo/s10-ev > > _______________________________________________ S10-EV mailing list [email removed]://pairlist5.pair.net/mailman/listinfo/s10-ev
_______________________________________________ S10-EV mailing list [email removed]://pairlist5.pair.net/mailman/listinfo/s10-ev
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Good catch, Don, Kevin, my unit was from a ’98. And, BTW, I understand there are 75+ ‘97s free range and only 12 or so ’98s. If anyone has better numbers I would be interested in knowing them. Steve From: Don Blazer [mailto:[email removed]]
Sent: Tuesday, July 17, 2018 7:20 PM
To: Steve Hawkins; [email removed]; [email removed]; [email removed]
Subject: HTCM There are two part numbers for the HTCM 1997 27004713 1998 # 27004714 So if your going to try a used one, make sure its year correct The last time I checked these were 600 dollars in 2009 Really Miss Jeff but what he told me in 2009 was he only was aware of
two legitimate HTCM module failures. One was due to water intrusion.
Jeff consider these a low failure part, but that was 9 years ago. Don In a message dated 7/17/2018 8:32:00 AM Pacific Standard Time, [email removed]<mailto:[email removed]> writes: Hi Kevin, This is noble work on your behalf. These trucks can be difficult to keep in line.
Good diagnosis.
I don’t know how other list members feel, but I enjoy reading the process of diagnosis as it’s a good education piece for possible future needs.
And, great to see the help and advice from the list. We all need that.
Next, I have my spare HTCM in hand.
Send me your address.
It is my only spare for my truck and projects, so how about I put it on loan to you?
You can test with it and use it, if needed, as long as I don’t need it for my truck at this moment.
Too many EV projects and my truck is not currently very high on my list.
A loan would also buy more time to find additional spares.
The only slightly bad news is that my truck has the same symptoms as yours!
Eeek. Good work. Steve From: [email removed]<mailto:[email removed]> [mailto:[email removed]<mailto:[email removed]?>]
Sent: Monday, July 16, 2018 2:52 PM
To: [email removed]<mailto:[email removed]>; [email removed]<mailto:[email removed]>
Subject: Re: [S10-EV] BP Flow sensor My problem is my truck will not charge. After about a minute, the charger displays E2 or flashes "Delay".
The problem is the pack blower will not run. I have 2 codes. 258, BP Blower air flow sensor circuit low and 267, Battery thermal module air flow performance.
One of the several steps in diagnosing the issue is to disconnect the flow sensor, which I couldn't find. Also, I can't power up the blower with the Tech 2 and the command request is always "0%", which lead me to believe it may not be the air flow sensor.
However, if the air flow sensor fails the tests, it sends me to the HTCM section.
While reading through the HTCM section, I came across a "No Serial Data" situation in section 6A-40. It tells you to try to access the 3 modules with the Tech 2. BPCM, DMCM and HTCM. I can read the BPCM and DMCM but can not read anything from the HTCM. After following all of the steps, it says, "Replace the HTCM". That's where I'm at now.
Sorry if I confusing people but I was just trying to keep it short and simple. I have new batteries ready to go in but need to fix this first. And YES!, I'm a bit lost.
Kevin In a message dated 7/16/2018 3:35:42 PM Eastern Standard Time, [email removed]<mailto:[email removed]> writes: Your post started out looking for information on the battery air flow sensor. This is monitored by the BPM, not HTCM. Curious why the change in direction, or what the symptom is that youre trying to investigate? On Mon, Jul 16, 2018 at 3:32 PM, Alan Martin <[email removed]<mailto:[email removed]>> wrote: > Your post started out looking for information on the battery air flow > sensor. This is monitored by the BPM, not HTCM. > > Curious why the change in direction, or what the symptom is that youre > trying to investigate? > > > > On Mon, Jul 16, 2018 at 10:49 AM, Steve Hawkins <[email removed]<mailto:[email removed]>> > wrote: >> >> Hi Kevin, >> >> >> >> Send me a PN and a picture of the module you need and I will see if I have >> one in my parts collections. >> >> >> >> Steve >> >> www.tzev.com<http://www.tzev.com> >> >> >> >> >> >> From: [email removed]<mailto:[email removed]> [mailto:[email removed]<mailto:[email removed]?>] >> Sent: Monday, July 16, 2018 7:35 AM >> To: [email removed]<mailto:[email removed]>; [email removed]<mailto:[email removed]> >> Subject: Re: [S10-EV] BP Flow sensor >> >> >> >> Thanks for the reply! >> >> I saw that and wish it was that easy. What I believe you have in that >> photo is actually the outside air valve. It's purpose is to allow a small >> amount of outside air into the box to purge any possible gases from the >> battery box. On top of the battery box are discs, about 2" in diameter that >> act like one way air valves to release any internal pressure. I'm not sure >> when it's activated. Maybe during charging? >> >> As for my issue, after doing more testing with the Tech 2, I believe my >> problem may be the Heating Thermal Control Module, (HTCM). That little box >> under the driver's seat. Now I need to find one. >> >> Kevin >> >> >> >> >> >> >> >> In a message dated 7/15/2018 10:12:12 PM Eastern Standard Time, >> [email removed]<mailto:[email removed]> writes: >> >> >> >> The sensor is located in a small black tube around the fan. Look for a 2 >> position connector, grey, with yellow and orange wires going to it. >> >> >> >> Attached photo has it highlighted. >> >> >> >> >> >> >> >> On Sun, Jul 15, 2018 at 6:31 PM, Gil Dawson <[email removed]<mailto:[email removed]>> wrote: >> >> Hi, Kevin-- >> >> >> >> As you probably know, the battery box is sealed: no air flows in or out. >> The blower inside the box circulates inside air through a cooling condenser >> and around the batteries to cool the batteries, chiefly while charging. The >> air flow sensor simply checks that the blower is working. >> >> >> >> The wires for all the sensors -- battery voltages and temperatures, plus >> the air flow sensor -- exit the box independently of the wires that power >> the blower. The blower requires three wires -- 12V+, chassis ground and a >> TTL-level Pulse Width Modulated signal to control the speed of the blower. >> >> >> >> To get to the air flow sensor, I'm pretty sure you have to open the box. >> >> >> >> --Gil >> >> >> >> On Jul 15, 2018, at 12:48 PM, bjnkm--- via S10-EV >> <[email removed]<mailto:[email removed]>> wrote: >> >> Can anyone please tell me the location of the Air Flow Sensor for the >> Battery Box? Manual says, before the blower fan. From under the truck, I can >> barely see the power plug for the Blower but don't see any other electrical >> plugs. Am I looking in the wrong place? >> >> Kevin >> >> _______________________________________________ >> S10-EV mailing list >> [email removed]<mailto:[email removed]> >> https://pairlist5.pair.net/mailman/listinfo/s10-ev >> >> >> _______________________________________________ >> S10-EV mailing list >> [email removed]<mailto:[email removed]> >> https://pairlist5.pair.net/mailman/listinfo/s10-ev > > _______________________________________________ S10-EV mailing list [email removed]<mailto:[email removed]> https://pairlist5.pair.net/mailman/listinfo/s10-ev
_______________________________________________ S10-EV mailing list [email removed]<mailto:[email removed]> https://pairlist5.pair.net/mailman/listinfo/s10-ev
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I've been casually tracking trucks as they appear on ebay or the list
for public sale for a few years now. I've got 7 VIN's for MY98 so far,
one is mine. If anyone else has info I'd be glad to compare notes. 1GCDE14H0W8117631
1GCDE14H2W8180665
1GCDE14H6W8134126
1GCDE14H7W8161996
1GCDE14H9W8103758
1GCDE14H9W8108930
1GCDE14H9W8182302 -Al On Wed, Jul 18, 2018 at 11:48 AM, Steve Hawkins <[email removed]> wrote:
> Good catch, Don,
>
>
>
> Kevin, my unit was from a ’98.
>
>
>
> And, BTW, I understand there are 75+ ‘97s free range and only 12 or so ’98s.
> If anyone has better numbers I would be interested in knowing them.
>
>
>
> Steve
>
>
>
>
>
> From: Don Blazer [mailto:[email removed]]
> Sent: Tuesday, July 17, 2018 7:20 PM
> To: Steve Hawkins; [email removed]; [email removed];
> [email removed]
> Subject: HTCM
>
>
>
> There are two part numbers for the HTCM
>
>
>
> 1997 27004713
>
>
>
> 1998 # 27004714
>
>
>
> So if your going to try a used one, make sure its year correct
>
>
>
> The last time I checked these were 600 dollars in 2009
>
>
>
> Really Miss Jeff but what he told me in 2009 was he only was aware of
>
> two legitimate HTCM module failures. One was due to water intrusion.
>
> Jeff consider these a low failure part, but that was 9 years ago.
>
>
>
> Don
>
>
>
>
>
>
>
> In a message dated 7/17/2018 8:32:00 AM Pacific Standard Time,
> [email removed] writes:
>
>
>
> Hi Kevin,
>
>
>
> This is noble work on your behalf. These trucks can be difficult to keep in
> line.
>
> Good diagnosis.
>
> I don’t know how other list members feel, but I enjoy reading the process of
> diagnosis as it’s a good education piece for possible future needs.
>
> And, great to see the help and advice from the list. We all need that.
>
> Next, I have my spare HTCM in hand.
>
> Send me your address.
>
> It is my only spare for my truck and projects, so how about I put it on loan
> to you?
>
> You can test with it and use it, if needed, as long as I don’t need it for
> my truck at this moment.
>
> Too many EV projects and my truck is not currently very high on my list.
>
> A loan would also buy more time to find additional spares.
>
> The only slightly bad news is that my truck has the same symptoms as yours!
>
> Eeek.
>
>
>
> Good work.
>
>
>
> Steve
>
>
>
> From: [email removed] [mailto:[email removed]]
> Sent: Monday, July 16, 2018 2:52 PM
> To: [email removed]; [email removed]
> Subject: Re: [S10-EV] BP Flow sensor
>
>
>
> My problem is my truck will not charge. After about a minute, the charger
> displays E2 or flashes "Delay".
>
> The problem is the pack blower will not run. I have 2 codes. 258, BP Blower
> air flow sensor circuit low and 267, Battery thermal module air flow
> performance.
>
> One of the several steps in diagnosing the issue is to disconnect the flow
> sensor, which I couldn't find. Also, I can't power up the blower with the
> Tech 2 and the command request is always "0%", which lead me to believe it
> may not be the air flow sensor.
>
> However, if the air flow sensor fails the tests, it sends me to the HTCM
> section.
>
> While reading through the HTCM section, I came across a "No Serial Data"
> situation in section 6A-40. It tells you to try to access the 3 modules with
> the Tech 2. BPCM, DMCM and HTCM. I can read the BPCM and DMCM but can not
> read anything from the HTCM. After following all of the steps, it says,
> "Replace the HTCM". That's where I'm at now.
>
> Sorry if I confusing people but I was just trying to keep it short and
> simple. I have new batteries ready to go in but need to fix this first. And
> YES!, I'm a bit lost.
>
> Kevin
>
>
>
> In a message dated 7/16/2018 3:35:42 PM Eastern Standard Time,
> [email removed] writes:
>
>
>
> Your post started out looking for information on the battery air flow
> sensor. This is monitored by the BPM, not HTCM. Curious why the change in
> direction, or what the symptom is that youre trying to investigate? On Mon,
> Jul 16, 2018 at 3:32 PM, Alan Martin <[email removed]> wrote: > Your post
> started out looking for information on the battery air flow > sensor. This
> is monitored by the BPM, not HTCM. > > Curious why the change in direction,
> or what the symptom is that youre > trying to investigate? > > > > On Mon,
> Jul 16, 2018 at 10:49 AM, Steve Hawkins <[email removed]> > wrote:
>>> >> Hi Kevin, >> >> >> >> Send me a PN and a picture of the module you
> need and I will see if I have >> one in my parts collections. >> >> >> >>
> Steve >> >> www.tzev.com >> >> >> >> >> >> From: [email removed]
> [mailto:[email removed]] >> Sent: Monday, July 16, 2018 7:35 AM >> To:
> [email removed]; [email removed] >> Subject: Re: [S10-EV] BP
> Flow sensor >> >> >> >> Thanks for the reply! >> >> I saw that and wish it
> was that easy. What I believe you have in that >> photo is actually the
> outside air valve. It's purpose is to allow a small >> amount of outside air
> into the box to purge any possible gases from the >> battery box. On top of
> the battery box are discs, about 2" in diameter that >> act like one way air
> valves to release any internal pressure. I'm not sure >> when it's
> activated. Maybe during charging? >> >> As for my issue, after doing more
> testing with the Tech 2, I believe my >> problem may be the Heating Thermal
> Control Module, (HTCM). That little box >> under the driver's seat. Now I
> need to find one. >> >> Kevin >> >> >> >> >> >> >> >> In a message dated
> 7/15/2018 10:12:12 PM Eastern Standard Time, >> [email removed] writes:
>>> >> >> >> The sensor is located in a small black tube around the fan. Look
> for a 2 >> position connector, grey, with yellow and orange wires going to
> it. >> >> >> >> Attached photo has it highlighted. >> >> >> >> >> >> >> >>
> On Sun, Jul 15, 2018 at 6:31 PM, Gil Dawson <[email removed]> wrote: >> >>
> Hi, Kevin-- >> >> >> >> As you probably know, the battery box is sealed: no
> air flows in or out. >> The blower inside the box circulates inside air
> through a cooling condenser >> and around the batteries to cool the
> batteries, chiefly while charging. The >> air flow sensor simply checks that
> the blower is working. >> >> >> >> The wires for all the sensors -- battery
> voltages and temperatures, plus >> the air flow sensor -- exit the box
> independently of the wires that power >> the blower. The blower requires
> three wires -- 12V+, chassis ground and a >> TTL-level Pulse Width Modulated
> signal to control the speed of the blower. >> >> >> >> To get to the air
> flow sensor, I'm pretty sure you have to open the box. >> >> >> >> --Gil >>
>>> >> >> On Jul 15, 2018, at 12:48 PM, bjnkm--- via S10-EV >>
> <[email removed]> wrote: >> >> Can anyone please tell me the
> location of the Air Flow Sensor for the >> Battery Box? Manual says, before
> the blower fan. From under the truck, I can >> barely see the power plug for
> the Blower but don't see any other electrical >> plugs. Am I looking in the
> wrong place? >> >> Kevin >> >>
> _______________________________________________ >> S10-EV mailing list >>
> [email removed] >>
> https://pairlist5.pair.net/mailman/listinfo/s10-ev >> >> >>
> _______________________________________________ >> S10-EV mailing list >>
> [email removed] >>
> https://pairlist5.pair.net/mailman/listinfo/s10-ev > >
> _______________________________________________ S10-EV mailing list
> [email removed] https://pairlist5.pair.net/mailman/listinfo/s10-ev
>
> _______________________________________________ S10-EV mailing list
> [email removed] https://pairlist5.pair.net/mailman/listinfo/s10-ev

Al, Good tracking. Add these, I have had two '98s: 1gcde14h6w8120257 - was destroyed and parted out.
1gcde14h4w8108995 - currently own. Steve === -----Original Message-----
From: Alan Martin [mailto:[email removed]] Sent: Wednesday, July 18, 2018 10:35 AM
To: Steve Hawkins
Cc: Don Blazer; [email removed]; [email removed]
Subject: Re: [S10-EV] HTCM I've been casually tracking trucks as they appear on ebay or the list for public sale for a few years now. I've got 7 VIN's for MY98 so far, one is mine. If anyone else has info I'd be glad to compare notes. 1GCDE14H0W8117631
1GCDE14H2W8180665
1GCDE14H6W8134126
1GCDE14H7W8161996
1GCDE14H9W8103758
1GCDE14H9W8108930
1GCDE14H9W8182302 -Al On Wed, Jul 18, 2018 at 11:48 AM, Steve Hawkins <[email removed]> wrote:
> Good catch, Don,
>
>
>
> Kevin, my unit was from a ’98.
>
>
>
> And, BTW, I understand there are 75+ ‘97s free range and only 12 or so ’98s.
> If anyone has better numbers I would be interested in knowing them.
>
>
>
> Steve
>
>
>
>
>
> From: Don Blazer [mailto:[email removed]]
> Sent: Tuesday, July 17, 2018 7:20 PM
> To: Steve Hawkins; [email removed]; [email removed]; > [email removed]
> Subject: HTCM
>
>
>
> There are two part numbers for the HTCM
>
>
>
> 1997 27004713
>
>
>
> 1998 # 27004714
>
>
>
> So if your going to try a used one, make sure its year correct
>
>
>
> The last time I checked these were 600 dollars in 2009
>
>
>
> Really Miss Jeff but what he told me in 2009 was he only was aware of
>
> two legitimate HTCM module failures. One was due to water intrusion.
>
> Jeff consider these a low failure part, but that was 9 years ago.
>
>
>
> Don
>
>
>
>
>
>
>
> In a message dated 7/17/2018 8:32:00 AM Pacific Standard Time, > [email removed] writes:
>
>
>
> Hi Kevin,
>
>
>
> This is noble work on your behalf. These trucks can be difficult to > keep in line.
>
> Good diagnosis.
>
> I don’t know how other list members feel, but I enjoy reading the > process of diagnosis as it’s a good education piece for possible future needs.
>
> And, great to see the help and advice from the list. We all need that.
>
> Next, I have my spare HTCM in hand.
>
> Send me your address.
>
> It is my only spare for my truck and projects, so how about I put it > on loan to you?
>
> You can test with it and use it, if needed, as long as I don’t need it > for my truck at this moment.
>
> Too many EV projects and my truck is not currently very high on my list.
>
> A loan would also buy more time to find additional spares.
>
> The only slightly bad news is that my truck has the same symptoms as yours!
>
> Eeek.
>
>
>
> Good work.
>
>
>
> Steve
>
>
>
> From: [email removed] [mailto:[email removed]]
> Sent: Monday, July 16, 2018 2:52 PM
> To: [email removed]; [email removed]
> Subject: Re: [S10-EV] BP Flow sensor
>
>
>
> My problem is my truck will not charge. After about a minute, the > charger displays E2 or flashes "Delay".
>
> The problem is the pack blower will not run. I have 2 codes. 258, BP > Blower air flow sensor circuit low and 267, Battery thermal module air > flow performance.
>
> One of the several steps in diagnosing the issue is to disconnect the > flow sensor, which I couldn't find. Also, I can't power up the blower > with the Tech 2 and the command request is always "0%", which lead me > to believe it may not be the air flow sensor.
>
> However, if the air flow sensor fails the tests, it sends me to the > HTCM section.
>
> While reading through the HTCM section, I came across a "No Serial Data"
> situation in section 6A-40. It tells you to try to access the 3 > modules with the Tech 2. BPCM, DMCM and HTCM. I can read the BPCM and > DMCM but can not read anything from the HTCM. After following all of > the steps, it says, "Replace the HTCM". That's where I'm at now.
>
> Sorry if I confusing people but I was just trying to keep it short and > simple. I have new batteries ready to go in but need to fix this > first. And YES!, I'm a bit lost.
>
> Kevin
>
>
>
> In a message dated 7/16/2018 3:35:42 PM Eastern Standard Time, > [email removed] writes:
>
>
>
> Your post started out looking for information on the battery air flow > sensor. This is monitored by the BPM, not HTCM. Curious why the change > in direction, or what the symptom is that youre trying to investigate? > On Mon, Jul 16, 2018 at 3:32 PM, Alan Martin <[email removed]> > wrote: > Your post started out looking for information on the battery > air flow > sensor. This is monitored by the BPM, not HTCM. > > Curious > why the change in direction, or what the symptom is that youre > > trying to investigate? > > > > On Mon, Jul 16, 2018 at 10:49 AM, Steve Hawkins <[email removed]> > wrote:
>>> >> Hi Kevin, >> >> >> >> Send me a PN and a picture of the module >>> >> you
> need and I will see if I have >> one in my parts collections. >> >> >> > >> Steve >> >> www.tzev.com >> >> >> >> >> >> From: [email removed] > [mailto:[email removed]] >> Sent: Monday, July 16, 2018 7:35 AM >> To:
> [email removed]; [email removed] >> Subject: Re: [S10-EV] > BP Flow sensor >> >> >> >> Thanks for the reply! >> >> I saw that and > wish it was that easy. What I believe you have in that >> photo is > actually the outside air valve. It's purpose is to allow a small >> > amount of outside air into the box to purge any possible gases from > the >> battery box. On top of the battery box are discs, about 2" in > diameter that >> act like one way air valves to release any internal > pressure. I'm not sure >> when it's activated. Maybe during charging? > >> >> As for my issue, after doing more testing with the Tech 2, I > believe my >> problem may be the Heating Thermal Control Module, > (HTCM). That little box >> under the driver's seat. Now I need to find > one. >> >> Kevin >> >> >> >> >> >> >> >> In a message dated
> 7/15/2018 10:12:12 PM Eastern Standard Time, >> [email removed] writes:
>>> >> >> >> The sensor is located in a small black tube around the fan. >>> >> >> >> Look
> for a 2 >> position connector, grey, with yellow and orange wires > going to it. >> >> >> >> Attached photo has it highlighted. >> >> >> > >> >> >> >> >> On Sun, Jul 15, 2018 at 6:31 PM, Gil Dawson > <[email removed]> wrote: >> >> Hi, Kevin-- >> >> >> >> As you > probably know, the battery box is sealed: no air flows in or out. >> > The blower inside the box circulates inside air through a cooling > condenser >> and around the batteries to cool the batteries, chiefly > while charging. The >> air flow sensor simply checks that the blower > is working. >> >> >> >> The wires for all the sensors -- battery > voltages and temperatures, plus >> the air flow sensor -- exit the box > independently of the wires that power >> the blower. The blower > requires three wires -- 12V+, chassis ground and a >> TTL-level Pulse > Width Modulated signal to control the speed of the blower. >> >> >> >> > To get to the air flow sensor, I'm pretty sure you have to open the > box. >> >> >> >> --Gil >>
>>> >> >> On Jul 15, 2018, at 12:48 PM, bjnkm--- via S10-EV >>
> <[email removed]> wrote: >> >> Can anyone please tell me the > location of the Air Flow Sensor for the >> Battery Box? Manual says, > before the blower fan. From under the truck, I can >> barely see the > power plug for the Blower but don't see any other electrical >> plugs. > Am I looking in the wrong place? >> >> Kevin >> >> > _______________________________________________ >> S10-EV mailing list > >> [email removed] >> > https://pairlist5.pair.net/mailman/listinfo/s10-ev >> >> >> > _______________________________________________ >> S10-EV mailing list > >> [email removed] >> > https://pairlist5.pair.net/mailman/listinfo/s10-ev > > > _______________________________________________ S10-EV mailing list > [email removed] > https://pairlist5.pair.net/mailman/listinfo/s10-ev
>
> _______________________________________________ S10-EV mailing list > [email removed] > https://pairlist5.pair.net/mailman/listinfo/s10-ev

My 1997 Lead acid truck going to LiFePO4 
1GCDE14H7V8188985
Kevin McMullin
Bear Delaware 19701
 
In a message dated 7/19/2018 10:27:00 AM Eastern Standard Time, [email removed] writes:   Al, Good tracking. Add these, I have had two '98s: 1gcde14h6w8120257 - was destroyed and parted out.
1gcde14h4w8108995 - currently own. Steve === -----Original Message-----
From: Alan Martin [mailto:[email removed]] Sent: Wednesday, July 18, 2018 10:35 AM
To: Steve Hawkins
Cc: Don Blazer; [email removed]; [email removed]
Subject: Re: [S10-EV] HTCM I've been casually tracking trucks as they appear on ebay or the list for public sale for a few years now. I've got 7 VIN's for MY98 so far, one is mine. If anyone else has info I'd be glad to compare notes. 1GCDE14H0W8117631
1GCDE14H2W8180665
1GCDE14H6W8134126
1GCDE14H7W8161996
1GCDE14H9W8103758
1GCDE14H9W8108930
1GCDE14H9W8182302 -Al On Wed, Jul 18, 2018 at 11:48 AM, Steve Hawkins <[email removed]> wrote:
> Good catch, Don,
>
>
>
> Kevin, my unit was from a ’98.
>
>
>
> And, BTW, I understand there are 75+ ‘97s free range and only 12 or so ’98s.
> If anyone has better numbers I would be interested in knowing them.
>
>
>
> Steve
>
>
>
>
>
> From: Don Blazer [mailto:[email removed]]
> Sent: Tuesday, July 17, 2018 7:20 PM
> To: Steve Hawkins; [email removed]; [email removed]; > [email removed]
> Subject: HTCM
>
>
>
> There are two part numbers for the HTCM
>
>
>
> 1997 27004713
>
>
>
> 1998 # 27004714
>
>
>
> So if your going to try a used one, make sure its year correct
>
>
>
> The last time I checked these were 600 dollars in 2009
>
>
>
> Really Miss Jeff but what he told me in 2009 was he only was aware of
>
> two legitimate HTCM module failures. One was due to water intrusion.
>
> Jeff consider these a low failure part, but that was 9 years ago.
>
>
>
> Don
>
>
>
>
>
>
>
> In a message dated 7/17/2018 8:32:00 AM Pacific Standard Time, > [email removed] writes:
>
>
>
> Hi Kevin,
>
>
>
> This is noble work on your behalf. These trucks can be difficult to > keep in line.
>
> Good diagnosis.
>
> I don’t know how other list members feel, but I enjoy reading the > process of diagnosis as it’s a good education piece for possible future needs.
>
> And, great to see the help and advice from the list. We all need that.
>
> Next, I have my spare HTCM in hand.
>
> Send me your address.
>
> It is my only spare for my truck and projects, so how about I put it > on loan to you?
>
> You can test with it and use it, if needed, as long as I don’t need it > for my truck at this moment.
>
> Too many EV projects and my truck is not currently very high on my list.
>
> A loan would also buy more time to find additional spares.
>
> The only slightly bad news is that my truck has the same symptoms as yours!
>
> Eeek.
>
>
>
> Good work.
>
>
>
> Steve
>
>
>
> From: [email removed] [mailto:[email removed]]
> Sent: Monday, July 16, 2018 2:52 PM
> To: [email removed]; [email removed]
> Subject: Re: [S10-EV] BP Flow sensor
>
>
>
> My problem is my truck will not charge. After about a minute, the > charger displays E2 or flashes "Delay".
>
> The problem is the pack blower will not run. I have 2 codes. 258, BP > Blower air flow sensor circuit low and 267, Battery thermal module air > flow performance.
>
> One of the several steps in diagnosing the issue is to disconnect the > flow sensor, which I couldn't find. Also, I can't power up the blower > with the Tech 2 and the command request is always "0%", which lead me > to believe it may not be the air flow sensor.
>
> However, if the air flow sensor fails the tests, it sends me to the > HTCM section.
>
> While reading through the HTCM section, I came across a "No Serial Data"
> situation in section 6A-40. It tells you to try to access the 3 > modules with the Tech 2. BPCM, DMCM and HTCM. I can read the BPCM and > DMCM but can not read anything from the HTCM. After following all of > the steps, it says, "Replace the HTCM". That's where I'm at now.
>
> Sorry if I confusing people but I was just trying to keep it short and > simple. I have new batteries ready to go in but need to fix this > first. And YES!, I'm a bit lost.
>
> Kevin
>
>
>
> In a message dated 7/16/2018 3:35:42 PM Eastern Standard Time, > [email removed] writes:
>
>
>
> Your post started out looking for information on the battery air flow > sensor. This is monitored by the BPM, not HTCM. Curious why the change > in direction, or what the symptom is that youre trying to investigate? > On Mon, Jul 16, 2018 at 3:32 PM, Alan Martin <[email removed]> > wrote: > Your post started out looking for information on the battery > air flow > sensor. This is monitored by the BPM, not HTCM. > > Curious > why the change in direction, or what the symptom is that youre > > trying to investigate? > > > > On Mon, Jul 16, 2018 at 10:49 AM, Steve Hawkins <[email removed]> > wrote:
>>> >> Hi Kevin, >> >> >> >> Send me a PN and a picture of the module >>> >> you
> need and I will see if I have >> one in my parts collections. >> >> >> > >> Steve >> >> www.tzev.com >> >> >> >> >> >> From: [email removed]
> [mailto:[email removed]] >> Sent: Monday, July 16, 2018 7:35 AM >> To:
> [email removed]; [email removed] >> Subject: Re: [S10-EV] > BP Flow sensor >> >> >> >> Thanks for the reply! >> >> I saw that and > wish it was that easy. What I believe you have in that >> photo is > actually the outside air valve. It's purpose is to allow a small >> > amount of outside air into the box to purge any possible gases from > the >> battery box. On top of the battery box are discs, about 2" in > diameter that >> act like one way air valves to release any internal > pressure. I'm not sure >> when it's activated. Maybe during charging? > >> >> As for my issue, after doing more testing with the Tech 2, I > believe my >> problem may be the Heating Thermal Control Module, > (HTCM). That little box >> under the driver's seat. Now I need to find > one. >> >> Kevin >> >> >> >> >> >> >> >> In a message dated
> 7/15/2018 10:12:12 PM Eastern Standard Time, >> [email removed] writes:
>>> >> >> >> The sensor is located in a small black tube around the fan. >>> >> >> >> Look
> for a 2 >> position connector, grey, with yellow and orange wires > going to it. >> >> >> >> Attached photo has it highlighted. >> >> >> > >> >> >> >> >> On Sun, Jul 15, 2018 at 6:31 PM, Gil Dawson > <[email removed]> wrote: >> >> Hi, Kevin-- >> >> >> >> As you > probably know, the battery box is sealed: no air flows in or out. >> > The blower inside the box circulates inside air through a cooling > condenser >> and around the batteries to cool the batteries, chiefly > while charging. The >> air flow sensor simply checks that the blower > is working. >> >> >> >> The wires for all the sensors -- battery > voltages and temperatures, plus >> the air flow sensor -- exit the box > independently of the wires that power >> the blower. The blower > requires three wires -- 12V+, chassis ground and a >> TTL-level Pulse > Width Modulated signal to control the speed of the blower. >> >> >> >> > To get to the air flow sensor, I'm pretty sure you have to open the > box. >> >> >> >> --Gil >>
>>> >> >> On Jul 15, 2018, at 12:48 PM, bjnkm--- via S10-EV >>
> <[email removed]> wrote: >> >> Can anyone please tell me the > location of the Air Flow Sensor for the >> Battery Box? Manual says, > before the blower fan. From under the truck, I can >> barely see the > power plug for the Blower but don't see any other electrical >> plugs. > Am I looking in the wrong place? >> >> Kevin >> >> > _______________________________________________ >> S10-EV mailing list > >> [email removed] >> > https://pairlist5.pair.net/mailman/listinfo/s10-ev >> >> >> > _______________________________________________ >> S10-EV mailing list > >> [email removed] >> > https://pairlist5.pair.net/mailman/listinfo/s10-ev > > > _______________________________________________ S10-EV mailing list > [email removed]
> https://pairlist5.pair.net/mailman/listinfo/s10-ev
>
> _______________________________________________ S10-EV mailing list > [email removed]
> https://pairlist5.pair.net/mailman/listinfo/s10-ev -------------- next part --------------
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Guys, I'm having email issues, so I apologize if you have already received this: I know I'm late the the party, but my 1998 had a bad HTCM when I bought it.
The truck had a water leak, and I found the HTCM sitting in a puddle under
the driver's seat. I paid $971 for a replacement in 2009, and mounted the
new unit off the floor. Funny, but I don't remember whether I put it
vertically on the wall behind the driver's seat, or if I put in under the
dash near the glovebox. All I know is that I made sure that it would not
likely ever get wet again! My VIN is 1GCDE14H9W8108930. I still have my truck, although it has no
batteries. I wonder if I ever will get around to working on it again... Cheers, Michael Anzalone
Long Island, NY On Thu, Jul 19, 2018 at 10:53 PM, bjnkm--- via S10-EV <
[email removed]> wrote: > My 1997 Lead acid truck going to LiFePO4
> 1GCDE14H7V8188985
> Kevin McMullin
> Bear Delaware 19701
>
> In a message dated 7/19/2018 10:27:00 AM Eastern Standard Time,
> [email removed] writes:
>
> Al,
>
> Good tracking. Add these, I have had two '98s:
>
> 1gcde14h6w8120257 - was destroyed and parted out.
> 1gcde14h4w8108995 - currently own.
>
> Steve
>
> ===
>
> -----Original Message-----
> From: Alan Martin [mailto:[email removed] <[email removed]?>]
> Sent: Wednesday, July 18, 2018 10:35 AM
> To: Steve Hawkins
> Cc: Don Blazer; [email removed]; [email removed]
> Subject: Re: [S10-EV] HTCM
>
> I've been casually tracking trucks as they appear on ebay or the list for
> public sale for a few years now. I've got 7 VIN's for MY98 so far, one is
> mine. If anyone else has info I'd be glad to compare notes.
>
> 1GCDE14H0W8117631
> 1GCDE14H2W8180665
> 1GCDE14H6W8134126
> 1GCDE14H7W8161996
> 1GCDE14H9W8103758
> 1GCDE14H9W8108930
> 1GCDE14H9W8182302
>
> -Al
>
>
>
> On Wed, Jul 18, 2018 at 11:48 AM, Steve Hawkins <[email removed]>
> wrote:
> > Good catch, Don,
> >
> >
> >
> > Kevin, my unit was from a ’98.
> >
> >
> >
> > And, BTW, I understand there are 75+ ‘97s free range and only 12 or so
> ’98s.
> > If anyone has better numbers I would be interested in knowing them.
> >
> >
> >
> > Steve
> >
> >
> >
> >
> >
> > From: Don Blazer [mailto:[email removed] <[email removed]?>]
> > Sent: Tuesday, July 17, 2018 7:20 PM
> > To: Steve Hawkins; [email removed]; [email removed];
> > [email removed]
> > Subject: HTCM
> >
> >
> >
> > There are two part numbers for the HTCM
> >
> >
> >
> > 1997 27004713
> >
> >
> >
> > 1998 # 27004714
> >
> >
> >
> > So if your going to try a used one, make sure its year correct
> >
> >
> >
> > The last time I checked these were 600 dollars in 2009
> >
> >
> >
> > Really Miss Jeff but what he told me in 2009 was he only was aware of
> >
> > two legitimate HTCM module failures. One was due to water intrusion.
> >
> > Jeff consider these a low failure part, but that was 9 years ago.
> >
> >
> >
> > Don
> >
> >
> >
> >
> >
> >
> >
> > In a message dated 7/17/2018 8:32:00 AM Pacific Standard Time,
> > [email removed] writes:
> >
> >
> >
> > Hi Kevin,
> >
> >
> >
> > This is noble work on your behalf. These trucks can be difficult to
> > keep in line.
> >
> > Good diagnosis.
> >
> > I don’t know how other list members feel, but I enjoy reading the
> > process of diagnosis as it’s a good education piece for possible future
> needs.
> >
> > And, great to see the help and advice from the list. We all need that.
> >
> > Next, I have my spare HTCM in hand.
> >
> > Send me your address.
> >
> > It is my only spare for my truck and projects, so how about I put it
> > on loan to you?
> >
> > You can test with it and use it, if needed, as long as I don’t need it
> > for my truck at this moment.
> >
> > Too many EV projects and my truck is not currently very high on my list.
> >
> > A loan would also buy more time to find additional spares.
> >
> > The only slightly bad news is that my truck has the same symptoms as
> yours!
> >
> > Eeek.
> >
> >
> >
> > Good work.
> >
> >
> >
> > Steve
> >
> >
> >
> > From: [email removed] [mailto:[email removed] <[email removed]?>]
> > Sent: Monday, July 16, 2018 2:52 PM
> > To: [email removed]; [email removed]
> > Subject: Re: [S10-EV] BP Flow sensor
> >
> >
> >
> > My problem is my truck will not charge. After about a minute, the
> > charger displays E2 or flashes "Delay".
> >
> > The problem is the pack blower will not run. I have 2 codes. 258, BP
> > Blower air flow sensor circuit low and 267, Battery thermal module air
> > flow performance.
> >
> > One of the several steps in diagnosing the issue is to disconnect the
> > flow sensor, which I couldn't find. Also, I can't power up the blower
> > with the Tech 2 and the command request is always "0%", which lead me
> > to believe it may not be the air flow sensor.
> >
> > However, if the air flow sensor fails the tests, it sends me to the
> > HTCM section.
> >
> > While reading through the HTCM section, I came across a "No Serial Data"
> > situation in section 6A-40. It tells you to try to access the 3
> > modules with the Tech 2. BPCM, DMCM and HTCM. I can read the BPCM and
> > DMCM but can not read anything from the HTCM. After following all of
> > the steps, it says, "Replace the HTCM". That's where I'm at now.
> >
> > Sorry if I confusing people but I was just trying to keep it short and
> > simple. I have new batteries ready to go in but need to fix this
> > first. And YES!, I'm a bit lost.
> >
> > Kevin
> >
> >
> >
> > In a message dated 7/16/2018 3:35:42 PM Eastern Standard Time,
> > [email removed] writes:
> >
> >
> >
> > Your post started out looking for information on the battery air flow
> > sensor. This is monitored by the BPM, not HTCM. Curious why the change
> > in direction, or what the symptom is that youre trying to investigate?
> > On Mon, Jul 16, 2018 at 3:32 PM, Alan Martin <[email removed]>
> > wrote: > Your post started out looking for information on the battery
> > air flow > sensor. This is monitored by the BPM, not HTCM. > > Curious
> > why the change in direction, or what the symptom is that youre >
> > trying to investigate? > > > > On Mon, Jul 16, 2018 at 10:49 AM, Steve
> Hawkins <[email removed]> > wrote:
> >>> >> Hi Kevin, >> >> >> >> Send me a PN and a picture of the module
> >>> >> you
> > need and I will see if I have >> one in my parts collections. >> >> >>
> > >> Steve >> >> www.tzev.com >> >> >> >> >> >> From: [email removed]
> > [mailto:[email removed] <[email removed]?>] >> Sent: Monday, July 16, 2018
> 7:35 AM >> To:
> > [email removed]; [email removed] >> Subject: Re: [S10-EV]
> > BP Flow sensor >> >> >> >> Thanks for the reply! >> >> I saw that and
> > wish it was that easy. What I believe you have in that >> photo is
> > actually the outside air valve. It's purpose is to allow a small >>
> > amount of outside air into the box to purge any possible gases from
> > the >> battery box. On top of the battery box are discs, about 2" in
> > diameter that >> act like one way air valves to release any internal
> > pressure. I'm not sure >> when it's activated. Maybe during charging?
> > >> >> As for my issue, after doing more testing with the Tech 2, I
> > believe my >> problem may be the Heating Thermal Control Module,
> > (HTCM). That little box >> under the driver's seat. Now I need to find
> > one. >> >> Kevin >> >> >> >> >> >> >> >> In a message dated
> > 7/15/2018 10:12:12 PM Eastern Standard Time, >> [email removed]
> writes:
> >>> >> >> >> The sensor is located in a small black tube around the fan.
> >>> >> >> >> Look
> > for a 2 >> position connector, grey, with yellow and orange wires
> > going to it. >> >> >> >> Attached photo has it highlighted. >> >> >>
> > >> >> >> >> >> On Sun, Jul 15, 2018 at 6:31 PM, Gil Dawson
> > <[email removed]> wrote: >> >> Hi, Kevin-- >> >> >> >> As you
> > probably know, the battery box is sealed: no air flows in or out. >>
> > The blower inside the box circulates inside air through a cooling
> > condenser >> and around the batteries to cool the batteries, chiefly
> > while charging. The >> air flow sensor simply checks that the blower
> > is working. >> >> >> >> The wires for all the sensors -- battery
> > voltages and temperatures, plus >> the air flow sensor -- exit the box
> > independently of the wires that power >> the blower. The blower
> > requires three wires -- 12V+, chassis ground and a >> TTL-level Pulse
> > Width Modulated signal to control the speed of the blower. >> >> >> >>
> > To get to the air flow sensor, I'm pretty sure you have to open the
> > box. >> >> >> >> --Gil >>
> >>> >> >> On Jul 15, 2018, at 12:48 PM, bjnkm--- via S10-EV >>
> > <[email removed]> wrote: >> >> Can anyone please tell me the
> > location of the Air Flow Sensor for the >> Battery Box? Manual says,
> > before the blower fan. From under the truck, I can >> barely see the
> > power plug for the Blower but don't see any other electrical >> plugs.
> > Am I looking in the wrong place? >> >> Kevin >> >>
> > _______________________________________________ >> S10-EV mailing list
> > >> [email removed] >>
> > https://pairlist5.pair.net/mailman/listinfo/s10-ev >> >> >>
> > _______________________________________________ >> S10-EV mailing list
> > >> [email removed] >>
> > https://pairlist5.pair.net/mailman/listinfo/s10-ev > >
> > _______________________________________________ S10-EV mailing list
> > [email removed]
> > https://pairlist5.pair.net/mailman/listinfo/s10-ev
> >
> > _______________________________________________ S10-EV mailing list
> > [email removed]
> > https://pairlist5.pair.net/mailman/listinfo/s10-ev
>
>
> _______________________________________________
> S10-EV mailing list
> [email removed]
> https://pairlist5.pair.net/mailman/listinfo/s10-ev
>
>
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Michael, Had not received it, thanks for resending. All good data. Steve From: Michael Anzalone [mailto:[email removed]]
Sent: Monday, September 17, 2018 8:05 PM
To: [email removed]; [email removed]
Cc: Steve Hawkins; Alan Martin
Subject: Re: [S10-EV] HTCM Guys, I'm having email issues, so I apologize if you have already received this: I know I'm late the the party, but my 1998 had a bad HTCM when I bought it. The truck had a water leak, and I found the HTCM sitting in a puddle under the driver's seat. I paid $971 for a replacement in 2009, and mounted the new unit off the floor. Funny, but I don't remember whether I put it vertically on the wall behind the driver's seat, or if I put in under the dash near the glovebox. All I know is that I made sure that it would not likely ever get wet again! My VIN is 1GCDE14H9W8108930. I still have my truck, although it has no batteries. I wonder if I ever will get around to working on it again... Cheers, Michael Anzalone
Long Island, NY On Thu, Jul 19, 2018 at 10:53 PM, bjnkm--- via S10-EV <[email removed]<mailto:[email removed]>> wrote:
My 1997 Lead acid truck going to LiFePO4
1GCDE14H7V8188985
Kevin McMullin
Bear Delaware 19701 In a message dated 7/19/2018 10:27:00 AM Eastern Standard Time, [email removed]<mailto:[email removed]> writes: Al, Good tracking. Add these, I have had two '98s: 1gcde14h6w8120257 - was destroyed and parted out.
1gcde14h4w8108995 - currently own. Steve === -----Original Message-----
From: Alan Martin [mailto:[email removed]<mailto:[email removed]?>]
Sent: Wednesday, July 18, 2018 10:35 AM
To: Steve Hawkins
Cc: Don Blazer; [email removed]<mailto:[email removed]>; [email removed]<mailto:[email removed]>
Subject: Re: [S10-EV] HTCM I've been casually tracking trucks as they appear on ebay or the list for public sale for a few years now. I've got 7 VIN's for MY98 so far, one is mine. If anyone else has info I'd be glad to compare notes. 1GCDE14H0W8117631
1GCDE14H2W8180665
1GCDE14H6W8134126
1GCDE14H7W8161996
1GCDE14H9W8103758
1GCDE14H9W8108930
1GCDE14H9W8182302 -Al On Wed, Jul 18, 2018 at 11:48 AM, Steve Hawkins <[email removed]<mailto:[email removed]>> wrote:
> Good catch, Don,
>
>
>
> Kevin, my unit was from a ’98.
>
>
>
> And, BTW, I understand there are 75+ ‘97s free range and only 12 or so ’98s.
> If anyone has better numbers I would be interested in knowing them.
>
>
>
> Steve
>
>
>
>
>
> From: Don Blazer [mailto:[email removed]<mailto:[email removed]?>]
> Sent: Tuesday, July 17, 2018 7:20 PM
> To: Steve Hawkins; [email removed]<mailto:[email removed]>; [email removed]<mailto:[email removed]>;
> [email removed]<mailto:[email removed]>
> Subject: HTCM
>
>
>
> There are two part numbers for the HTCM
>
>
>
> 1997 27004713
>
>
>
> 1998 # 27004714
>
>
>
> So if your going to try a used one, make sure its year correct
>
>
>
> The last time I checked these were 600 dollars in 2009
>
>
>
> Really Miss Jeff but what he told me in 2009 was he only was aware of
>
> two legitimate HTCM module failures. One was due to water intrusion.
>
> Jeff consider these a low failure part, but that was 9 years ago.
>
>
>
> Don
>
>
>
>
>
>
>
> In a message dated 7/17/2018 8:32:00 AM Pacific Standard Time,
> [email removed]<mailto:[email removed]> writes:
>
>
>
> Hi Kevin,
>
>
>
> This is noble work on your behalf. These trucks can be difficult to
> keep in line.
>
> Good diagnosis.
>
> I don’t know how other list members feel, but I enjoy reading the
> process of diagnosis as it’s a good education piece for possible future needs.
>
> And, great to see the help and advice from the list. We all need that.
>
> Next, I have my spare HTCM in hand.
>
> Send me your address.
>
> It is my only spare for my truck and projects, so how about I put it
> on loan to you?
>
> You can test with it and use it, if needed, as long as I don’t need it
> for my truck at this moment.
>
> Too many EV projects and my truck is not currently very high on my list.
>
> A loan would also buy more time to find additional spares.
>
> The only slightly bad news is that my truck has the same symptoms as yours!
>
> Eeek.
>
>
>
> Good work.
>
>
>
> Steve
>
>
>
> From: [email removed]<mailto:[email removed]> [mailto:[email removed]<mailto:[email removed]?>]
> Sent: Monday, July 16, 2018 2:52 PM
> To: [email removed]<mailto:[email removed]>; [email removed]<mailto:[email removed]>
> Subject: Re: [S10-EV] BP Flow sensor
>
>
>
> My problem is my truck will not charge. After about a minute, the
> charger displays E2 or flashes "Delay".
>
> The problem is the pack blower will not run. I have 2 codes. 258, BP
> Blower air flow sensor circuit low and 267, Battery thermal module air
> flow performance.
>
> One of the several steps in diagnosing the issue is to disconnect the
> flow sensor, which I couldn't find. Also, I can't power up the blower
> with the Tech 2 and the command request is always "0%", which lead me
> to believe it may not be the air flow sensor.
>
> However, if the air flow sensor fails the tests, it sends me to the
> HTCM section.
>
> While reading through the HTCM section, I came across a "No Serial Data"
> situation in section 6A-40. It tells you to try to access the 3
> modules with the Tech 2. BPCM, DMCM and HTCM. I can read the BPCM and
> DMCM but can not read anything from the HTCM. After following all of
> the steps, it says, "Replace the HTCM". That's where I'm at now.
>
> Sorry if I confusing people but I was just trying to keep it short and
> simple. I have new batteries ready to go in but need to fix this
> first. And YES!, I'm a bit lost.
>
> Kevin
>
>
>
> In a message dated 7/16/2018 3:35:42 PM Eastern Standard Time,
> [email removed]<mailto:[email removed]> writes:
>
>
>
> Your post started out looking for information on the battery air flow
> sensor. This is monitored by the BPM, not HTCM. Curious why the change
> in direction, or what the symptom is that youre trying to investigate?
> On Mon, Jul 16, 2018 at 3:32 PM, Alan Martin <[email removed]<mailto:[email removed]>>
> wrote: > Your post started out looking for information on the battery
> air flow > sensor. This is monitored by the BPM, not HTCM. > > Curious
> why the change in direction, or what the symptom is that youre >
> trying to investigate? > > > > On Mon, Jul 16, 2018 at 10:49 AM, Steve Hawkins <[email removed]<mailto:[email removed]>> > wrote:
>>> >> Hi Kevin, >> >> >> >> Send me a PN and a picture of the module
>>> >> you
> need and I will see if I have >> one in my parts collections. >> >> >>
> >> Steve >> >> www.tzev.com<http://www.tzev.com> >> >> >> >> >> >> From: [email removed]<mailto:[email removed]>
> [mailto:[email removed]<mailto:[email removed]?>] >> Sent: Monday, July 16, 2018 7:35 AM >> To:
> [email removed]<mailto:[email removed]>; [email removed]<mailto:[email removed]> >> Subject: Re: [S10-EV]
> BP Flow sensor >> >> >> >> Thanks for the reply! >> >> I saw that and
> wish it was that easy. What I believe you have in that >> photo is
> actually the outside air valve. It's purpose is to allow a small >>
> amount of outside air into the box to purge any possible gases from
> the >> battery box. On top of the battery box are discs, about 2" in
> diameter that >> act like one way air valves to release any internal
> pressure. I'm not sure >> when it's activated. Maybe during charging?
> >> >> As for my issue, after doing more testing with the Tech 2, I
> believe my >> problem may be the Heating Thermal Control Module,
> (HTCM). That little box >> under the driver's seat. Now I need to find
> one. >> >> Kevin >> >> >> >> >> >> >> >> In a message dated
> 7/15/2018 10:12:12 PM Eastern Standard Time, >> [email removed]<mailto:[email removed]> writes:
>>> >> >> >> The sensor is located in a small black tube around the fan.
>>> >> >> >> Look
> for a 2 >> position connector, grey, with yellow and orange wires
> going to it. >> >> >> >> Attached photo has it highlighted. >> >> >>
> >> >> >> >> >> On Sun, Jul 15, 2018 at 6:31 PM, Gil Dawson
> <[email removed]<mailto:[email removed]>> wrote: >> >> Hi, Kevin-- >> >> >> >> As you
> probably know, the battery box is sealed: no air flows in or out. >>
> The blower inside the box circulates inside air through a cooling
> condenser >> and around the batteries to cool the batteries, chiefly
> while charging. The >> air flow sensor simply checks that the blower
> is working. >> >> >> >> The wires for all the sensors -- battery
> voltages and temperatures, plus >> the air flow sensor -- exit the box
> independently of the wires that power >> the blower. The blower
> requires three wires -- 12V+, chassis ground and a >> TTL-level Pulse
> Width Modulated signal to control the speed of the blower. >> >> >> >>
> To get to the air flow sensor, I'm pretty sure you have to open the
> box. >> >> >> >> --Gil >>
>>> >> >> On Jul 15, 2018, at 12:48 PM, bjnkm--- via S10-EV >>
> <[email removed]<mailto:[email removed]>> wrote: >> >> Can anyone please tell me the
> location of the Air Flow Sensor for the >> Battery Box? Manual says,
> before the blower fan. From under the truck, I can >> barely see the
> power plug for the Blower but don't see any other electrical >> plugs.
> Am I looking in the wrong place? >> >> Kevin >> >>
> _______________________________________________ >> S10-EV mailing list
> >> [email removed]<mailto:[email removed]> >>
> https://pairlist5.pair.net/mailman/listinfo/s10-ev >> >> >>
> _______________________________________________ >> S10-EV mailing list
> >> [email removed]<mailto:[email removed]> >>
> https://pairlist5.pair.net/mailman/listinfo/s10-ev > >
> _______________________________________________ S10-EV mailing list
> [email removed]<mailto:[email removed]>
> https://pairlist5.pair.net/mailman/listinfo/s10-ev
>
> _______________________________________________ S10-EV mailing list
> [email removed]<mailto:[email removed]>
> https://pairlist5.pair.net/mailman/listinfo/s10-ev _______________________________________________
S10-EV mailing list
[email removed]<mailto:[email removed]>
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