Mechanics

CHEVY SERVICE 4WD LIGHT ON

2000 Chevrolet Silverado

Transmission problem
2000 Chevy Silverado V8 Four Wheel Drive Automatic 125000 miles

My service 4wd light is on and none of the lights on the push button are lit up. I changed the push button switch and that did not fix the problem any other ideas?
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Bforby
March 9, 2008.



You can try to disconnect the 4 wheel drive module for 30 seconds and see if it comes back on. Sounds like the module needs to be replaced. You may have to go to a dealer and have a scan tool put on it and see if the module is getting communication.

Tiny
Rhall77
Mar 11, 2008.
Is the module in the fusebox under the hood?

Tiny
Bforby
Mar 11, 2008.
Its behind the 4 wheel drive switch but above the drivers side fuse box. Its a 2 connector module.

Tiny
Rhall77
Mar 11, 2008.
I hope this gets to soon, try to disconnect the fuse for 30 seconds instead of pulling the module out. This will do the same thing.

Tiny
Rhall77
Mar 11, 2008.
My father-in-law just had a friend of his hook it up to a scanner and it said the encoder motor is bad. He has one off a suburban of the same year do you think that one would fit?

Tiny
Bforby
Mar 11, 2008.
Im not 100% sure. You may wanna call a parts department and find out. What is the code that he got.

Tiny
Rhall77
Mar 11, 2008.