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Jun 25, 2021 | 10:23 AM

IronMaidens2.0

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Another BCM Question

I searched this site and can't seem to find a list of what signals the BCM needs to wake .
I was hoping to find the list of signals ,where they come from and where they go into the BCM and possibly wire colors .

Jun 25, 2021 | 01:23 PM

mmartinez

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From: Espanola New Mexico

Maybe somebody with the factory manual can post up the wiring diagram, I do know that the door open sensor is one of the things that wake"s up the BCM.

Jun 25, 2021 | 05:15 PM

IronMaidens2.0

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Just a question to anyone who might know ,I bought a used BCM ,same year and same BCM number .I know it needs to be flashed ,but when I leave it hooked up and let car sit ,go back and open door and the new (used one) will not wake up either .I have to pull fuse and reinsert it to get it to come on .So it kind of does the same thing my original one does .
Is this just a flash issue also ?

Last edited by IronMaidens2.0; Jun 25, 2021 at 05:16 PM.

Jun 25, 2021 | 06:09 PM

Smoken1

Joined: Apr 2013

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From: Oregon

St. Jude Donor '14-'15-'16-'17-'18-'19-'20-'21-'22-'23

Did you follow these directions yet?
1. Turn on the key for 11 minutes.
2 Turn off the key for 30 seconds.
3. Repeat 1&2 two more times.
4. Turn on the key for 30 seconds.

Jun 25, 2021 | 06:12 PM

mmartinez

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From: Espanola New Mexico

You could have a bad door sensor, does it wake up if you open the passenger side door?

Jun 25, 2021 | 06:23 PM

IronMaidens2.0

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Quote:

Originally Posted by Smoken1

Did you follow these directions yet?
1. Turn on the key for 11 minutes.
2 Turn off the key for 30 seconds.
3. Repeat 1&2 two more times.
4. Turn on the key for 30 seconds.

yes I did .have a bunch of codes but car starts and I get a message 80mph is top speed ,service soon .
But when I shut it off and come back later it won't wake until I pull and re install fuse. .Same as original BCM .
Now it's got me wondering if it's something else .

Jun 25, 2021 | 06:28 PM

IronMaidens2.0

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Quote:

Originally Posted by mmartinez

You could have a bad door sensor, does it wake up if you open the passenger side door?

No it will not .Hitting key fob for hatch won't work either .

Jun 26, 2021 | 10:52 AM

C5 Diag

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From: Cape Coral, Florida

Hope this helps !!…from the 2001 FSM. It is a good idea to enter ALL pertinent info in your profile…model year, mods, tune etc…this helps up help you !!