Random BCM issues - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

HellKnightHicks · 04-28-2016, 02:48 PM

Periodically My BCM totally forgets everything... I have to roll the windows down and back up. Happens about once every six months.

A couple days ago while driving home all dash lights went out and radio went off completely.... They came back on and off several times.... One time a message came up about the drivers side door. Then annother message about Service stabilitrac. After the 10 min fit it decided it was fine again.

The next day I come out from work to find the driver side window rolled down about 3" car had been sitting all day and it was raining when I came in so theres no way that I would have rolled the window down that morning.

Any ideas?

2012 Camaro SS2

Banshee · 05-02-2016, 11:55 AM

Check your positive battery post under the hood. Driver side...red plastic cover. 13mm bolt. Had same symptoms as you...sans service stabilitrak. Tightened 3 full turns...removed bolt, hit last 2 threads with Loctite red and installed. No more issues.

If that doesn't work, check battery terminals...and a small 6 gauge wire on positive battery terminal with a wire loom and maybe a yellow 1/2" tape wrap at end of loom where wire connector installs to battery post.

If that doesn't work, check battery voltage at battery. Then if you are questionable on voltage, remove battery and charge your battery on low for 3 to 5 hours or dependant on what your charger amperage output is....if that doesnt work, take your battery in for a load test. You may have a bad cell causing voltage spikes to the BCM.

Keep us posted!

Banshee · 05-02-2016, 12:01 PM

BTW....how many miles on your car?

HellKnightHicks · 05-02-2016, 11:19 PM

27000

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HellKnightHicks · 05-02-2016, 11:21 PM

I'll try the above

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04-28-2016, 02:48 PM	#1
HellKnightHicks Drives: 2012 SS2 Magnacahrger / Cam Join Date: Sep 2014 Location: Eastern Ky Posts: 5	Random BCM issues Periodically My BCM totally forgets everything... I have to roll the windows down and back up. Happens about once every six months. A couple days ago while driving home all dash lights went out and radio went off completely.... They came back on and off several times.... One time a message came up about the drivers side door. Then annother message about Service stabilitrac. After the 10 min fit it decided it was fine again. The next day I come out from work to find the driver side window rolled down about 3" car had been sitting all day and it was raining when I came in so theres no way that I would have rolled the window down that morning. Any ideas? 2012 Camaro SS2

05-02-2016, 11:55 AM	#2
Banshee Institutionally Insane Drives: 2013 IOM 2SS/RS 1LE Join Date: Feb 2009 Location: Detroit MI Posts: 2,115 View My Garage	Check your positive battery post under the hood. Driver side...red plastic cover. 13mm bolt. Had same symptoms as you...sans service stabilitrak. Tightened 3 full turns...removed bolt, hit last 2 threads with Loctite red and installed. No more issues. If that doesn't work, check battery terminals...and a small 6 gauge wire on positive battery terminal with a wire loom and maybe a yellow 1/2" tape wrap at end of loom where wire connector installs to battery post. If that doesn't work, check battery voltage at battery. Then if you are questionable on voltage, remove battery and charge your battery on low for 3 to 5 hours or dependant on what your charger amperage output is....if that doesnt work, take your battery in for a load test. You may have a bad cell causing voltage spikes to the BCM. Keep us posted! __________________ It's got a cop motor, a 440 cubic inch plant, it's got cop tires, cop suspension, cop shocks. It's a model made before catalytic converters so it'll run good on regular gas. What do you say, is it the new Bluesmobile or what?

05-02-2016, 12:01 PM	#3
Banshee Institutionally Insane Drives: 2013 IOM 2SS/RS 1LE Join Date: Feb 2009 Location: Detroit MI Posts: 2,115 View My Garage	BTW....how many miles on your car? __________________ It's got a cop motor, a 440 cubic inch plant, it's got cop tires, cop suspension, cop shocks. It's a model made before catalytic converters so it'll run good on regular gas. What do you say, is it the new Bluesmobile or what?

05-02-2016, 11:19 PM	#4
HellKnightHicks Drives: 2012 SS2 Magnacahrger / Cam Join Date: Sep 2014 Location: Eastern Ky Posts: 5	27000 Sent from my A0001 using Tapatalk

05-02-2016, 11:21 PM	#5
HellKnightHicks Drives: 2012 SS2 Magnacahrger / Cam Join Date: Sep 2014 Location: Eastern Ky Posts: 5	I'll try the above Sent from my A0001 using Tapatalk