need help!!! disconnected the bcm and now car wont start - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SC2150 · 03-31-2013, 08:17 AM

NEVER unplug a control module w/out first disconnecting the negative terminal in the trunk directly from the battery.

nicave13@gmail.com · 03-31-2013, 11:00 AM

Quote:

Originally Posted by SC2150

NEVER unplug a control module w/out first disconnecting the negative terminal in the trunk directly from the battery.

Unrelated to this post, but gold star captain obvious. Never listen to someones advice is what I really learned. Read earlier, u will understand.

2011 SS SLP ZL427 · 03-31-2013, 01:17 PM

Its a very hard lesson learned luckily your warranty covered it and the cars fine again, most important thing to remember BEFORE any electrical work is being performed DISCONNECT the NEGATIVE battery cable it might be a pain in these cars to get to but in the long run it saves your computers and other electrical components from voltage spikes.

reedfranklin · 03-10-2020, 08:49 PM

I am having the same problem, dealer is changing ecm and bcm 1st then going from there.
They feel it was struck by lightning or a voltage spike from from a short in a harness or a module

CamaroBarb · 03-13-2020, 11:23 AM

Quote:

Originally Posted by reedfranklin

I am having the same problem, dealer is changing ecm and bcm 1st then going from there.
They feel it was struck by lightning or a voltage spike from from a short in a harness or a module

What happened? Just came out to a no start?

03-31-2013, 01:17 PM	#17
2011 SS SLP ZL427 Drives: 2011 SS ZL427 Join Date: Feb 2013 Location: Drums PA Posts: 115	Its a very hard lesson learned luckily your warranty covered it and the cars fine again, most important thing to remember BEFORE any electrical work is being performed DISCONNECT the NEGATIVE battery cable it might be a pain in these cars to get to but in the long run it saves your computers and other electrical components from voltage spikes. __________________

03-31-2013, 08:17 AM	#15
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	NEVER unplug a control module w/out first disconnecting the negative terminal in the trunk directly from the battery.

03-10-2020, 08:49 PM	#18
reedfranklin Drives: 2010 Join Date: Mar 2020 Location: Ohio Posts: 3	I am having the same problem, dealer is changing ecm and bcm 1st then going from there. They feel it was struck by lightning or a voltage spike from from a short in a harness or a module