code question
Thread Starter
Instructor
Joined: Mar 2003
Posts: 141
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From: Hampstead NC
code question
I was driving along this afternoon and all of a sudden my gas gauge dropped to empty and the check gauges light came on and the low fuel warning came on. I have had some of the typical fuel gauge problems in the past, but it has never all of a sudden dropped to empty and the check gauges light has never come on before. here are the codes. can someone enlighten me as to if there is a problem?
I don't drive the car much, only about 3000 miles per year.
P1431H on PCM
U1064H on LDCM & RDCM
U1096H, U1064H, U1016H on RFA
I don't drive the car much, only about 3000 miles per year.
P1431H on PCM
U1064H on LDCM & RDCM
U1096H, U1064H, U1016H on RFA
Instructor
Joined: Sep 2003
Posts: 124
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Re: code question (BackSpacer_C5)
Chevy knows there is a problem with fuel gauges. Your dealer can update the PCM calibration on some C5's to correct the issue you are complaining about. Some of the repairs require a new fuel sender in the left tank,there are also some fuel transfer and jet pump issues, your dealer should have the tsb's and PI's available as this is a common problem.
Le Mans Master
Joined: Aug 2001
Posts: 7,064
Likes: 18
From: Arizona
Re: code question (BackSpacer_C5)
P1431H on PCM
U1064H on LDCM & RDCM
U1096H, U1064H, U1016H on RFA
U1064H on LDCM & RDCM
U1096H, U1064H, U1016H on RFA
U1064 Loss of Communications with BCM
U1096 Loss of Communications with IPC
U1016 Loss of Communication with PCM
Instructor
Joined: Feb 2004
Posts: 178
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From: Ca
Re: code question (simplyred02)
I've had every single one of those codes. The LDCM and RDCM are Left and Right Door Control Module. Your codes have to do with loss of communication but it's pretty common for C5's to have these. I've been told its a programming glitch. Once your in manual diagnostics hit and hold reset. It will clear the codes. The 1431 code is the right tank sending unit malfunction. I have this one also. My gass guage goes haywire between a little less than 3/4 tank and 1/4 tank. This one's pretty common too.
Rich. :cheers:
Rich. :cheers:
Thread Starter
Instructor
Joined: Mar 2003
Posts: 141
Likes: 0
From: Hampstead NC
Re: code question (Bigblockquad)
thanks guys. I've had the fuel gauge problem in the past but not in the last several fill ups. I just wanted to check with everyone here to make sure the codes aren't something that would strand me somewhere on the side of the road. that would be embarransing with a corvette broke down :sad:
