owens656: I have a 2002 cavalier and the following lights come on after about 30
minutes of driving it: the theft, brake, trac off, abs, airbag, and come
on after about 30 min of driving the car. It seems to do it when I hit a
bump mostly and when I turn the car off, the daytime lights stay on for
about 20 min. Would this be a bad cluster, bad ground or a bad body
control module? Thanks.
Jeff S: Definitely a bad ground. I tried every other thing on my mother's 2001
Cavalier. Nothing fixed it. Then I attached a grounding strap from the
engine block to the firewall. That cured all the problems. Make sure your
battery-to-engine block ground is clean and tight. Sand down to bare metal
on the firewall if you attach a grounding strap or wire.
The problems began after getting a new heater core. There must be a ground
wire somewhere in or on the heater core box that got broken or was never
Also, the radio is keyed to the BCM. I had to re-install the original BCM
to get the radio back.
Alicia Tulcus: Have your automobile engine code checked. If it says no communication with
the body control module. There is some ground connection around the
battery. That is were I found it. And check your voltage and ground ecm and
boc you will usually find a bad ground..
All2skitzd: I've had the same thing happen, the first time it was a blown fuse because
I shorted out the trunk light. The second time it was a issue with the
aftermarket radio retain power acc. and chime box.
UrbanRetreatYT: Sounds like you have a bad ground. I had the same issue when I bought my 99
z24 and had to make a makeshift ground wire and it fixed everything except
my gas gauge which no longer works after I fixed the ground issue.
steven baker: This would be the body control module.... sir
Bruce Everett: ok sounds like you got a bad speedometer head.. we had this problem happen
to us.. so we replaced it and that fixed it.. you can sometimes find a used
one at a salvage yard in which case we did that .. was cheaper than having
to buy a new speedometer cluster set
Tony Flick: Mine didnt have the same issue.. but i tryed fixing the bulbs myself to
leds and totally messed it up.. the best thing to do is just go to a junk
yard and get 1 from 10 to 30 bucks... better then paying 300 for a new 1..
04holmes1: I mean did not post this @04holmes1
Mathieu Caron: same here
avcomext: HI I HAVE A SUNFIRE 99 WITH THE SAME PROBLEM SINCE 2 YEARS. DID YOU GET A
SOLUTION THAT YOU CAN SHARE TO ME?
Scott Kearley: Its Diffenitly an Electrical Problem I Had A 99 Cavalier That Ad A Diode
Gone In The RPM Gauge And All The Other Gauges Got A Malfunction In There
Lead Power Source The Car Got Confused Sometimes The Other Gauges Would Go
Out .. I Took The Car To A AC Delco Mechanic He Said That One Gauge Can
Make Your Other Items On The Instrument panel Go Wacky Because They Think
That The Car Is In ACC mode Even Though Your Car Was Powered On The Gauges
Think Your Shutting The car Off And On Before It Reponds
Scott Kearley: that only works if you have lead problems or contact not electrical....and
if your car had no ground it wouldn't work..... i got a 03 Pontiac Grand
Prix In My Backyard And The Grounding Unit Fell Off Somewhere Because The
Car Is A freaking Piece Of crap And Rusty In Order To Get The Car To Start
Or Do Anything I Have To Get A Ground Manifold
nicknaggriff: did you ever figure this out? my 03 cavalier is doing the same exact thing!
04holmes1: Sorry I did boot post this earlier, but to solve the problem I replaced the
body control module (bcm). I got a new one cheap on Amazon and had the
dealership flash the code for my key fob. In total it was a 10 min
replacement and about $125.
Frank Guerra: i had a prblem with my 2002 and it was a bad cell in the battery and ruiend
my alternator also
Jose Barrera: i just fixed my 03 cavalier it was doing the same thing i solve it by
runing a wire from the negative pole on the battery to a bolt on the
firewall also make sure the ground on your negative cable is bolted to the
battery tray... this problem is caused due to bad ground....
2012GreenGhost420: HAHA Welcome to owning a 2001 Cavalier!! Mine does this crap too