Q: Drl error making service light pop up

asked by on

I have a 2003 Chevy cavalier upon looking on forums many other people have this same issue I just haven't resolved mine, I just bought this car for my wife it's the ls model the headlights work the fogs work and the highbeam works.The problem is when I turn the car on all fine no problems when I put the car in reverse to back out the DRl flickers for a couple seconds then disappears then the service light pops on, if I turn headlights on before backing out the light never comes on the light only comes on if the headlights are off and I put it in reserve. The things I have done to try and fix this issue was replacing the relay fuse and both bcm fuses in the fuse box in the car

My car has 119000 miles.
My car has an automatic transmission.

If I were working on your car, I would read the code that is set when the service light turns on. Barring doing this, it would be good to know if the DRL work normally other than this issue. Beyond these two details, there are reports of a wiring splice behind the left hand headlight that causes some problems. As well as a resistor behind the front bumper cover that can fail. Changing the relay was a good start.

Beyond these two items, the BCM (body control module) is involved. Witch I am wondering about because of what happens that seems to create the problem. Being, putting the car into reverse. In the wiring diagrams, the BCM is the only connection between the headlights and the neutral safety switch. The neutral safety switch is what tells informs the computer modules on the car what gear your car is in. The PCM (powertrain control module) is also involved to some degree as well.

The reality is, this could be a very easy diagnosis and it could be one of those diagnosis that everyone looses on. Meaning, a technician could easily spend more time on this than he or she could charge for and you could end up paying more than the problem is worth to fix. Let’s hope for the easy diagnosis of course.

If you would like help with this, I recommend the following inspection ; Electric problems to address this specific issue.

Good luck!

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Drl error making service light pop up

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I just changed out my 2.0 to a 2.2 from a 1990 cavalier.

Hi there. Unfortunately, this is what is called a built in problem. The engine and wiring harness exchange from a 1986 2.0L to a 1990 2.2L is going to require circuit testing and wiring diagrams from both vehicles to correct...

Q: Car makes loud tapping/knocking when turning slighly left or left front left tire area. started after clutch replacement

Hello. I would need to know what the noise sounds like in order to get a better understanding on what may be going on. Most of the time, if this occurred right after the transmission is removed and replaced, it...

Q: Transmission leaking from the inside

Hi. The axle seal sits in the transmission where the axle shaft slides in. I'm assuming that is what your mechanic is talking about, or the axle shaft sleeve. In either case, this is a fairly routine repair. First, the...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...