Help..something Wrong With Electronics

parkerb8 · October 21, 2007

Alright I have a 2003 silverado. It has 30,000 miles on it and of course out of warrenty. My problem is with the gadges, radio, A/C, dome light, shift indicator, back up lights, and remote mirros. I have power to my radio (I can eject a cd) however nothing displays on the screen or nothing will play. When I start my truck i can't tell what gear I am in because it is not lit up. My battery, oil, gas, temp all stay at very bottom (but there is power) my speedo and tach work. I checked some connects but only wiggled the connections, and everything seemed to be good. This all started one day when I turned on the radio, everything just quit. It did come back for a short period of time but when I tried to turn the radio on again it quit. and now it just stays off. Sorry for the long post, anyone HELP please.

Thanks Bryan

luminaapv3 · October 21, 2007

check your fuses and try unplugging the radio, sound like something is getting short cuircuted. This may or may not help, but it's where I would start since everything worked ok until you turned on the radio.

forrestf · October 21, 2007

Parker,

Carefully check all your fuses, they are listed in the owners manual. I you have a OBD II code reader, that might show the code causing the problem. I would think that if all the fuses are ok, then the (BCM) Body Control Module has malfunctioned. The dealers put 5 BCM's and 2 instrument cluster panels in my 06 Duramax trying to find why the instrument cluster back lights kept going out and the BCM kept blowing up. The fifth time, I suggested the light/dimmer switch might be shorting out............I was right, they replaced the light switch module and I now have instrument cluster back lights that work everytime.

My bet is the BCM, the dealer has to R/R the BCM and reprogram it with their main computer via their Tech 2 programmer. I don't know of any way for the "do-it-yourself"

Forrest

parkerb8 · October 22, 2007

Thanks alot for the replys....I will try and take it in tomorrow to test the BCM....I will also take a look at the fuses again to make sure there is not a problem there. I agree it has something to do with a short in the radio, I just did not realize that almost eveything on the gadge cluster is connected in! I will keep an updaye as I am sure this won't be the last time someone has this problem.

If anyone else has had similar problem please chim in

Thanks