[SOLVED] Heated/ventilated seats, driver seat memory not working, door triple unlock - Page 4

BlueStreak91 · 07-04-2022, 09:59 PM

I ran an update (as prompted) by the head unit last night when I got home.

Today I don’t have seat coolers anymore. Switch and lights for them appear to work.

I didn’t think to test the heaters, I’ll do that tomorrow.

Coincidence?

BlueStreak91 · 07-08-2022, 12:10 PM

Further intrigue. Heated seats not working, but the switch shows them on.

I can hear the blower for the cooled seats running when the switch is on, but no airflow to speak of at the seat. Anybody know where I can find a page from the manual describing the airflow path from the blower to the seat? It acts like an airline somewhere developed a leak or got disconnected.

SomeGeoffGuy · 07-08-2022, 04:53 PM

Quote:

Originally Posted by BlueStreak91

Further intrigue. Heated seats not working, but the switch shows them on.

I can hear the blower for the cooled seats running when the switch is on, but no airflow to speak of at the seat. Anybody know where I can find a page from the manual describing the airflow path from the blower to the seat? It acts like an airline somewhere developed a leak or got disconnected.

They just suck from underneath. They are ventilated, not air conditioned.There is a tube that runs from under the seat to the bladder that the air blows out the little holes from.

-Geoff

arpad_m · 07-08-2022, 06:12 PM

Quote:

Originally Posted by BlueStreak91

Further intrigue. Heated seats not working, but the switch shows them on.

I can hear the blower for the cooled seats running when the switch is on, but no airflow to speak of at the seat. Anybody know where I can find a page from the manual describing the airflow path from the blower to the seat? It acts like an airline somewhere developed a leak or got disconnected.

Quote:

Originally Posted by SomeGeoffGuy

They just suck from underneath. They are ventilated, not air conditioned.There is a tube that runs from under the seat to the bladder that the air blows out the little holes from.

-Geoff

Yeah, the airflow is relatively weak even at max (level 3) speed. Turning the A/C on and blowing cold air down towards your legs will significantly improve it (if everything is working as it should, of course).

Jarek · 08-04-2022, 02:19 PM

Hello,
Thanks to the input from our colleagues raidaru and ejik418 we managed to find the root-cause.
All symptoms are connected:
- heating/venting not working
- unnecessary triple door unlock command
- driver's seat memory not working
The problem lies with the BCM and can be fixed with single command executed from diag computer.
Command is named "Read LIN Bus Device ID Information", this brings you to the list of modules but ignore them and go straight for the "Update" button - pressing it fixes all instantly.
I have attached photo from diag computer.
I hope it will help some other forum users (to avoid replacing modules or exchanging seats/modules with other working cars, or trying to look for error codes like 3 of us did).

Best regards,
Jarek

I am marking this topic as solved!

Anjilslaire · 08-04-2022, 02:48 PM

Where does one get the diagnostic application to run this? Assuming it's a dealer/mechanic exclusive?

Just being nosy as an infosec geek

Jarek · 08-04-2022, 02:55 PM

Yes - you need to have good mechanic for that - best specializing in electronics with proper tool set.
I assume mine has dealer level computer, however I posted the command name so that any mechanic can check with their devices if this is visible/usable for them (if not go to dealer).

BR,
Jarek

arpad_m · 08-04-2022, 08:17 PM

Thanks for getting back to the topic with the solution, Jarek. Makes even more sense if what happend was that a module got replaced (at some point) and thus IDs didn't match before you executed this re-read command.

Jarek · 08-05-2022, 04:40 AM

Hi arpad_m

In our case even after the module replacement of the module this command was not executed by the service people and problem remained (this was the case for ejik418 - until he went to dealer service) no errors were reported.

BR,
Jarek

raidaru · 08-05-2022, 03:28 PM

Tried that stuff that Jarek said it worked for him but I didn't get so lucky. After I execute that function it sends me to a sub menu of stuff related to windows and from there I can't do jack! Here is the vid https://www.veed.io/view/996f1e0a-11...6-172c9a20a10d

Keko · 08-05-2022, 03:53 PM

Quote:

Originally Posted by raidaru

Tried that stuff that Jarek said it worked for him but I didn't get so lucky. After I execute that function it sends me to a sub menu of stuff related to windows and from there I can't do jack! Here is the vid https://www.veed.io/view/996f1e0a-11...6-172c9a20a10d

The update command at the bottom doesn't do anything?

Jarek · 08-06-2022, 09:02 AM

Quote:

Originally Posted by raidaru

Tried that stuff that Jarek said it worked for him but I didn't get so lucky. After I execute that function it sends me to a sub menu of stuff related to windows and from there I can't do jack! Here is the vid https://www.veed.io/view/996f1e0a-11...6-172c9a20a10d

Hi Raidaru,

I double checked with my electronics guy today - and just as Keko suggested - it is the "Update" button that does the trick.

BR,
Jarek

Jasonjay20 · 11-09-2022, 09:18 AM

My car seems to do the same I can’t seem to find what the problem is! What was it that you changed out or fixed?

Nine5gtr · 01-26-2024, 11:51 PM

Just a follow up. I did what Jarek recommended and have a diagnostic tool to go through the bcm update. It populated all the models and all system back to normal. Anyone near me needs help, DM me.

07-04-2022, 09:59 PM	#43
BlueStreak91 Drives: 2SS Vert Join Date: Jan 2022 Location: N. AL. Posts: 45 View My Garage	I ran an update (as prompted) by the head unit last night when I got home. Today I don’t have seat coolers anymore. Switch and lights for them appear to work. I didn’t think to test the heaters, I’ll do that tomorrow. Coincidence? __________________ 22 2SS Vert, RSB, White Stripes over Ceramic White w A10, MRC, NPP, and more (built in Michigan) 71 Chevelle (built in Texas), 05 Yukon XL (built in Texas), 22 Corolla Cross (built in Alabama), and more cars for the kids

07-08-2022, 12:10 PM	#44
BlueStreak91 Drives: 2SS Vert Join Date: Jan 2022 Location: N. AL. Posts: 45 View My Garage	Further intrigue. Heated seats not working, but the switch shows them on. I can hear the blower for the cooled seats running when the switch is on, but no airflow to speak of at the seat. Anybody know where I can find a page from the manual describing the airflow path from the blower to the seat? It acts like an airline somewhere developed a leak or got disconnected. __________________ 22 2SS Vert, RSB, White Stripes over Ceramic White w A10, MRC, NPP, and more (built in Michigan) 71 Chevelle (built in Texas), 05 Yukon XL (built in Texas), 22 Corolla Cross (built in Alabama), and more cars for the kids

08-04-2022, 02:19 PM	#47
Jarek Drives: 2017 2SS Convertible Join Date: Mar 2021 Location: Warsaw, Poland, EU Posts: 90	Fixed! Topic solved Hello, Thanks to the input from our colleagues raidaru and ejik418 we managed to find the root-cause. All symptoms are connected: - heating/venting not working - unnecessary triple door unlock command - driver's seat memory not working The problem lies with the BCM and can be fixed with single command executed from diag computer. Command is named "Read LIN Bus Device ID Information", this brings you to the list of modules but ignore them and go straight for the "Update" button - pressing it fixes all instantly. I have attached photo from diag computer. I hope it will help some other forum users (to avoid replacing modules or exchanging seats/modules with other working cars, or trying to look for error codes like 3 of us did). Best regards, Jarek I am marking this topic as solved! Attached Images __________________ Camaro SS 2017 Convertible, 2SS trim, V8 6.2L 455HP 618Nm, A8, Silver Mods so far: K&N oil air filter, rear lamps EU conversion with sequential turn signal, exhaust modification to 4 tips (non-NPP), LED rear fog light (EU requirement), side-markers conversion to LED Mods planned: Morimoto LED lamps set (front) Last edited by Jarek; 08-07-2022 at 04:44 PM.

08-04-2022, 02:55 PM	#49
Jarek Drives: 2017 2SS Convertible Join Date: Mar 2021 Location: Warsaw, Poland, EU Posts: 90	Yes - you need to have good mechanic for that - best specializing in electronics with proper tool set. I assume mine has dealer level computer, however I posted the command name so that any mechanic can check with their devices if this is visible/usable for them (if not go to dealer). BR, Jarek __________________ Camaro SS 2017 Convertible, 2SS trim, V8 6.2L 455HP 618Nm, A8, Silver Mods so far: K&N oil air filter, rear lamps EU conversion with sequential turn signal, exhaust modification to 4 tips (non-NPP), LED rear fog light (EU requirement), side-markers conversion to LED Mods planned: Morimoto LED lamps set (front)

08-04-2022, 08:17 PM	#50
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 11,575 View My Garage	Thanks for getting back to the topic with the solution, Jarek. Makes even more sense if what happend was that a module got replaced (at some point) and thus IDs didn't match before you executed this re-read command. __________________ 2018 Camaro 2SS — G7E MX0 NPP F55 IO6 735 rwhp \| 665 rwtq Magnuson TVS 2300 80mm pulley \| Kooks 1 7/8" LT headers \| JRE smooth idle terminator cam \| LT4 FS & injectors \| TSP forged pistons & rods JMS PowerMAX \| DSX flex fuel kit \| Roto-Fab CAI \| Soler 95mm LT5 TB \| 1LE wheels \| 1LE brakes \| BMR rear cradle lockout \| JRE custom tune 1100 - 1/30/18 \| 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 \| 3800 - 2/26/18 4300 - 2/27/18 \| 4B00 - 3/01/18 4200 - 3/05/18 \| 4800 - 3/14/18 5000 - 3/16/18 \| 6000 - 3/19/18

08-04-2022, 02:48 PM	#48
Anjilslaire Drives: 2021 3LT RS A10 Join Date: Nov 2021 Location: South Sound, Washington Posts: 438	Where does one get the diagnostic application to run this? Assuming it's a dealer/mechanic exclusive? Just being nosy as an infosec geek

08-05-2022, 04:40 AM	#51
Jarek Drives: 2017 2SS Convertible Join Date: Mar 2021 Location: Warsaw, Poland, EU Posts: 90	Hi arpad_m In our case even after the module replacement of the module this command was not executed by the service people and problem remained (this was the case for ejik418 - until he went to dealer service) no errors were reported. BR, Jarek __________________ Camaro SS 2017 Convertible, 2SS trim, V8 6.2L 455HP 618Nm, A8, Silver Mods so far: K&N oil air filter, rear lamps EU conversion with sequential turn signal, exhaust modification to 4 tips (non-NPP), LED rear fog light (EU requirement), side-markers conversion to LED Mods planned: Morimoto LED lamps set (front)

08-05-2022, 03:28 PM	#52
raidaru Drives: 2SS Join Date: Mar 2018 Location: Europe Posts: 130	Tried that stuff that Jarek said it worked for him but I didn't get so lucky. After I execute that function it sends me to a sub menu of stuff related to windows and from there I can't do jack! Here is the vid https://www.veed.io/view/996f1e0a-11...6-172c9a20a10d

11-09-2022, 09:18 AM	#55
Jasonjay20 Drives: 2017 Chevy Camaro Join Date: Nov 2022 Location: Laredo Posts: 1	How did you fix it My car seems to do the same I can’t seem to find what the problem is! What was it that you changed out or fixed?

01-26-2024, 11:51 PM	#56
Nine5gtr Drives: 2020 2SS 1LE Join Date: Mar 2022 Location: Northern Virginia Posts: 3	Just a follow up. I did what Jarek recommended and have a diagnostic tool to go through the bcm update. It populated all the models and all system back to normal. Anyone near me needs help, DM me.

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