Lots of U codes and cluster lights on

70

Asked by Nov 12, 2010 at 07:21 PM about the 2002 Chevrolet Cavalier Base

Question type: Maintenance & Repair

I have a problem with cluster warning lights coming on. when all accessories are on i.e. wipers, headlamps, defrost, radio etc. and press on brakes to stop car, abs light, brake light, service light, theft light, airbag light all come on at the same time. while rolling all lights might shut of except for theft light and service light that always stay on(they shut off once ignition is turned off and started up again). changed battery and alternator a few days ago but problem has started over a month ago. checked codes in modules and got :
P1626 - theft deterent
C1245 - brake lamp circuit open (but all my brake lights work well)
U10?? - loss of communication with abs module
U1016 - loss of communication with PCM
U1064 - loss of communication with DIM
U1088 - loss of communication with SDM
Has anyone ever gottn these codes before? What parts need to be checked or replaced? Where can I start looking for a solution to this problem? aside from the warning lights coming on and the radio flickering on and off, everything works fine. Car has never stalled.
Thanks for the help.

2 Answers

11,235

Your communicaton bus is getting shorted between modules ( CAN ) - I would try a few things Disconnect the radio - Clear codes and see if the U codes come back. If they do then disconnect the ABS controller and clear codes and see if the U codes come back. I think you will find it being one or the other My Bet is the ABS controller

2 out of 2 people think this is helpful.
20

I had the same thing happen. It was the neutral cable to battery tray ground that was corroded.. There is a bolt that clamps the neutral cable to the battery tray it is at the bottom of the battery. Once this was replaced the problem was solved.

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Help with code p0442 26 answers

    Hi, I recently purchased a 2005 Chevrolet Cavalier from craigslist, It had its check engine light on, but I did a scan and saw that code P0442 was the only code it came back with. I know that's an e...

    2005 Chevrolet Cavalier Base Coupe

    -

    Maintenance & Repair

  • Cluster and heater light behind the dash just stopped working. 1 answer

    My car just got a new engine and everything else. I had to pull the cluster out and replace a few lights when I put it back together I noticed that I no longer have lights behind the knobs the room...

    1995 Chevrolet Cavalier Base

    -

    Maintenance & Repair

  • 98 Cavalier Speedometer/Odometer stopped working 10 answers

    'Non-digital' speedometer and odometer suddenly stopped working. The panel lights up and the gas gauge works. Is this a common problem with these cars? Would the whole cluster need to replaced? Is the...

    1998 Chevrolet Cavalier

    -

    Maintenance & Repair

  • code 0507 check engine light on 1 answer

    my gas pedal got stuck then loose. So I went under hood one brake cable was loose. I thought that would fix it. So now the pedal is loose and 0507 code and check engine light on. how to repair

    2002 Chevrolet Cavalier LS Sport

    -

    Maintenance & Repair

  • How to replace the instrument cluster on a 1995 Corvette 2 answers

    The LCD display for the speedometer/odometer is dim. I want to replace the entire cluster. Are there any codes or setting adjustments required for the replacement? Is there a bulb only to replace for ...

    Chevrolet Corvette

    -

    Maintenance & Repair

Search Chevrolet Cavalier Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Chevrolet Cavalier Experts

#1 John Saffrahn
John Saffrahn
Reputation 2,760
#2 dandyoun
dandyoun
Reputation 1,260
#3 mbar1
mbar1
Reputation 1,120
View All

Related Models For Sale

Used Chevrolet Malibu
1,182 Great Deals out of 83,203 listings starting at $1,800
Used Chevrolet Impala
956 Great Deals out of 35,425 listings starting at $1,700
Used Honda Civic
856 Great Deals out of 70,841 listings starting at $1,200
Used Chevrolet Camaro
433 Great Deals out of 40,831 listings starting at $3,500
Used Ford Mustang
565 Great Deals out of 43,003 listings starting at $1,699
Used Ford Focus
884 Great Deals out of 58,882 listings starting at $800
Used Toyota Corolla
997 Great Deals out of 68,493 listings starting at $1,595
Used Chevrolet Corvette
270 Great Deals out of 20,560 listings starting at $3,688
Used Honda Accord
1,010 Great Deals out of 75,622 listings starting at $899
Used Chevrolet Monte Carlo
21 Great Deals out of 1,687 listings starting at $2,491
Used Toyota Camry
1,240 Great Deals out of 97,272 listings starting at $1,250
Used Dodge Neon
904 listings