Electrical Issues C5 2000
Thread Starter
Heel & Toe
Joined: Jul 2011
Posts: 21
Likes: 0
Electrical Issues C5 2000
I seem to be having some issues with the passenger door. The Mirror, lock, and window do not seem to be working. Passenger control does not work along with the driver control for all those components. I have also tested to make sure power is going to the control panel on the passenger side which it does strangely?? On the other note, weird enough I pushed one of the memory buttons for the power seats and a bunch of warning lights came on in the dash. Some of the symptoms were the fuel gauge was empty, no oil pressure.. pretty much all gauges freaked out. Also the ECM box next to the fuses (the silver box, if that is what it is?) was extremely hot.
I have no idea how i could troubleshoot this any further but i want to say its the computer.
Any help would be greatly appreciated thank you!
I have no idea how i could troubleshoot this any further but i want to say its the computer.
Any help would be greatly appreciated thank you!
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Pull back the rubber gaiter in the door hinge area. Its common for wires to chafe causing a short. Pull, clean and reseat the connectors and repair any damage to the insulation.
Thread Starter
Heel & Toe
Joined: Jul 2011
Posts: 21
Likes: 0
I'll give this a shot thank you. But I am still confused on how a program button on the driver side would cause so much mayhem?? Like it says loss of power, low fuel, car needs to be serviced, oil psi gauge shows zero, fuel gauge shows empty... But when I turn the car off and back on it's fine again but the window is still messed up lol?
Thread Starter
Heel & Toe
Joined: Jul 2011
Posts: 21
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But my other issues are more concerning.
Tech Contributor
Joined: Dec 1999
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Door module problems affecting other modules
Your issues stem from poor connections from the female pins in the door connectors. They cause noise & interuptions and havoc on the serial data line. Thus it affects numerous other modules.
The real cure is to disassemble the door connectors and repair the damaged female pins like the connector pictured below:
As for heat,, yea the BCM will get warm.
BC
The real cure is to disassemble the door connectors and repair the damaged female pins like the connector pictured below:
As for heat,, yea the BCM will get warm.
BC
Thread Starter
Heel & Toe
Joined: Jul 2011
Posts: 21
Likes: 0
Your issues stem from poor connections from the female pins in the door connectors. They cause noise & interuptions and havoc on the serial data line. Thus it affects numerous other modules.
The real cure is to disassemble the door connectors and repair the damaged female pins like the connector pictured below:
As for heat,, yea the BCM will get warm.
BC
The real cure is to disassemble the door connectors and repair the damaged female pins like the connector pictured below:
As for heat,, yea the BCM will get warm.
BC
New issue: I am recently experiencing now the dash board lights will not shut off and the interior lights as well after you turn the car off. I don't know if this is related to the other issues??
Last edited by Foss; Jul 18, 2011 at 01:18 PM.
Thread Starter
Heel & Toe
Joined: Jul 2011
Posts: 21
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Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Check the voltage at the battery terminals with a digital meter. A fully charged battery is 12.6 volts and 11.6 when discharged. 00 Rooster is absolutely correct. A run down battery can cause all sorts of weird problems.
Last edited by DeeGee; Jul 19, 2011 at 12:21 AM.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Fix the connectors and any chafing first. It may resolve all your problems. Once thats done we can troubleshoot the rest but you need to do this first.
