Please help with multiple codes going off

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Feb 13, 2012 | 06:33 PM

lvictores

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Instructor

Joined: Oct 2010

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Please help with multiple codes going off

2003 Zo6 with A@A procharger. The car has run great since installed in 2005. This morning in florida it was 37F and the car ran great for 15minutes and then multiple messages came up, reduced engine power( but the engine still ran great) , the fuel gauge went immediately from half a tank to below empty ( but the engine ran great) and a low voltage message came on ( I just put a new battery 6 months ago) and the ABS light,traction control and check gauges light all came on at the same time. I would turn off the car and all the messages would go away and on restarting the car
it would
happen again 3 minutes later under normal driving conditions. I will post the codes later but there are so many of them ( like 20) and I never had these codes before. Guys, where do I start?

Thanks.

Feb 13, 2012 | 06:46 PM

chaase

Team Owner

Joined: May 2003

Posts: 23,480

Likes: 9

From: East Meadow NY

St. Jude Donor '12

Reset all of the codes and post what come back

Feb 13, 2012 | 06:50 PM

DownByLaw

Intermediate

Joined: Jun 2010

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I had this problem with my '99 frc. Turned out to be the passenger door wiring harness connector. I unplugged it, spread the prongs a bit, reconnected, and thus far all is good. Think maybe a little corrosion got in there causing all the codes. This spring I will do the drivers side as well, and use dielectric grease on the contacts.

Patrick

Feb 13, 2012 | 07:13 PM

lvictores

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Quote:

Originally Posted by DownByLaw

Now that you mention that, the buttons on power windows do not make make any noise and the windows won't budge. I will check the connectors tomorrow.

Feb 13, 2012 | 09:08 PM

Dennis Wilson

Safety Car

Joined: Oct 2003

Posts: 3,699

Likes: 16

From: Sun City- Menifee Calif.

Quote:

Originally Posted by DownByLaw

Same here! It would happen once in awhile And I would wiggle the accordian boot on driver`s door clear, codes and it might be a few months before it happens again. Finally pulled the plugs on driver`s side and pulled them apart . The black one had lots of corrosion inside. Cleaned them both added a bit 0f WD-40, plugged them back in and all is good now going on 6 months! Exact same symptoms You describe! Engine would run normal but guages would go dead and nothing else would work. [AC, radio locks, etc.] Good luck!

Feb 13, 2012 | 11:56 PM

Bill Curlee

Tech Contributor

Joined: Dec 1999

Posts: 32,910

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From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

Heres your issue.. Look for deformed female pins that look like this in the door wiring harness:

Feb 15, 2012 | 12:18 PM

lvictores

Thread Starter

Instructor

Joined: Oct 2010

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Quote:

Originally Posted by Bill Curlee

Heres your issue.. Look for deformed female pins that look like this in the door wiring harness:

I sprayed WD-40 and put dielectric grease and both driver and passenger connectors and no more codes and car runs great. The driver's window works but the passenger window doesn't come down. You here a click in the passenger door area when hitting the button to move the window but it won't budge. This has happened before and the window will work for 2-3 weeks in a row and then stop working all of a sudden. Anyway, thanks for the help.

Feb 15, 2012 | 12:27 PM

Dennis Wilson

Safety Car

Joined: Oct 2003

Posts: 3,699

Likes: 16

From: Sun City- Menifee Calif.

Quote:

Originally Posted by lvictores

Next time its working don`t let it go up all the way. Mine did the same thing on & off, Saw a post that said the window would jam the motor when all the way up . So I`ve been just stopping it 1/8th. - 1/16th. inch from top. and its been good for 3 years or more now! PS I had all the stuff replaced in the door under warr. in `04. worked for awhile then started doing it again I could hear the click in the door too, so I knew it was getting power. Good luck.