Hey Forum,
Hey guys i am new her in the forum.
I have a problem with my 1997 grand prix se 3.1.
I try to do my inspection but obd2 computer says, communication error with the ecu.
I can hook up my hand odb2 Reader and it powers up but don"t read any codes.
The cigarette lighter fuse wars blown. so i replaced the fuse. and removed the cigarette lighter when it always blows the fuse.
any body have any idea what the issue is.
Is it have something to do with the aftermarket radio.
Service engine light is defect i think is not come on.
Somebody have a wiring diagram.
sorry the bad English.
Torsten
