Having problems with your Chevrolet Cars & Trucks ?

2001 3500 chevy duramax all running lights,tail and dash lights not coming on..

\015 Ckecked all fuses ,all are good replaced dash switch still not working. when i run a jumper wire from trailer plug hot to trailer plug tail markers all the lights come on.\015 Posted / edited by AnonymousUser on : 24-09-2018

Answers :

The wiring diagrams on 2000 and newer models are not easy to read sometimes, but it shows a 30amp park lamp fuse and a park lamp relay. The relay is controlled by the PCM. There is also a 10amp Int - Park fuse. I think the small fuse is inside the passenger compartment and the large fuse is in the engine compartment box.
You may have to get a shop manual to get the diagrams to be able to check each circuit.
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