99 C5 Damn door serial bus cable
Thread Starter
Heel & Toe
Joined: Jan 2013
Posts: 18
Likes: 0
99 C5 Damn door serial bus cable
Okay so within the last 6 months I had taped up the wire in the elbow to keep it from grounding. As well know if it grounds the car dies no lights nada. So lately it's gotten colder and I was having the symptoms of this happening again short battery life because of the ground and I'd have to turn the key a few times to get the car to start and it clicks and shuts off and I have to open the driver door (where I've pinpointed the issue to) just to start my car. After wretch in myself under the dash and looking at it there's black electrical tape around a tan wire and the BARE WIRE with the tubing on it and there only seems to be tubeing on the last 2 inches of the wire before it hits the serial bus connector but from that connector into the dash I can feel through the tape it's probably bare
1. Is it supposed to be wrapped in this tape?
2. Is it supposed to have only that 2 inches of tubing before the bus connector?
3. Has anyone taken this to a dealer and had that whole length of wire replaced with an actual coated wire instead of the bare wire with tube crap?
1. Is it supposed to be wrapped in this tape?
2. Is it supposed to have only that 2 inches of tubing before the bus connector?
3. Has anyone taken this to a dealer and had that whole length of wire replaced with an actual coated wire instead of the bare wire with tube crap?
Intermediate
Joined: Dec 2015
Posts: 34
Likes: 5
From: Taft Texas
Replace the six wire connector that goes to the drivers door. There are two connectors. I replaced the six wire one with an aftermarket connector and everything works fine now. Cut the connector out, twisted and soldered the wires to the new connector then taped them up. Good luck WTB
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
I do not think that you actually have a SERIAL DATA BUSS WIRE ISSUE. You "could" but the most likely cause of your problem is the six wire connector FEMALE pins are spread apart and make poor connections!!!. That causes a poor connection between the MALE and FEMALE pins. Most of those pins are power related. When they make a poor connection,,, the LDCM or the RDCM or BOTH, power or ground wires make and break connection which causes the module/s to turn on and off rapidly. That causes the module to put noise on the serial data buss and corrupt the serial data buss flow of information and the BCM spazzes out. That's what causes the IPC gages to whack out.
The bare wire is nothing more than a SPEAKER Shield wire and actually has nothing to do with the issue.
The ONLY way to get to the bottom of the issue is to do a PIN PULL TEST and find out what pins are spread apart and are causing the issue. Fix or replace the pins or replace the connector.
PIN PULL TEST Obtain a new male pin that is the exact same size as the connector male pins,,, Insert it into the female pin. It should have a nice firm insertion and retraction drag. If it goes in and out and there is little or no drag,,, THERES YOUR PROBLEM!
BC
Last edited by Bill Curlee; Jan 6, 2016 at 10:33 AM.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Not correct.
There is a connector that has the serial bus and other circuits to provide the door control functions and another one just for the Bose speakers.
The bare wire with tubing is in the Bose circuits and runs through that other connector.
Mr. Sam
Thread Starter
Heel & Toe
Joined: Jan 2013
Posts: 18
Likes: 0
Gotcha. I'll check my connectors for damage. I'm just hoping it's not a harness issue. Also has anyone pinpointed the wire (s) in the connector that cause this issue?
Last edited by C5VETTE026; Jan 6, 2016 at 04:48 PM.
Drifting
Joined: Feb 2008
Posts: 1,596
Likes: 67
From: Bahama North Carolina
I agree with Bill. Doesn't sound like a serial buss problem. There is probably nothing wrong with that connector. Have you used the dic and pulled codes? Posting the codes may shed some light.
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Drifting
Joined: Feb 2008
Posts: 1,596
Likes: 67
From: Bahama North Carolina
[QUOTE=C5VETTE026;1591268383]All the codes? Everything goes crazy when it acts up all the gauges max out goes into rep mode[/QUOTE]
I must have missed that part in your previous posts. Codes may still be helpful.
I must have missed that part in your previous posts. Codes may still be helpful.