Service AWD Light on - No AWD

tony17112acst · Feb 14, 2010

I just sold my beautiful 2002 Bravada to someone. The gentleman called back one day after the sale and said the "Service AWD" light came on. This is just my luck!

I've been reading these forums to help him out and have found that the possibilies to look into are:

1.) Fuze blown
2.) TCCM needs replaced
3.) A bad sensor (somewhere)

Are there other things I can pass on to him that he should look into without knowing anything more than the light is on and the AWD isn't engaging?

Thanks a million!! -Tony

strat81 · Feb 14, 2010

Could be a bad encoder motor.

When was the last time the transfer case fluid was changed? What did you pour in there?

tony17112acst · Feb 14, 2010

Well, we purchased it with 85,000 miles on it from a dealership and put only 9000 miles on it before selling. So we didn't do anything. We did have the 100,000 mile transmission fluid chage service performed by a transmission shop, but that's it. -Tony

the roadie · Feb 14, 2010

The 4WD systems in the trailblazer and envoy are easier to diagnose at home than the AWD Bravada system. Paying for a dealer to diagnose it might make sense, depending on what your sales arrangement and relationship to the buyer are, and also state laws about how long the buyer has to unwind the transaction.

tony17112acst · Feb 15, 2010

Thanks a lot guys, I guess I"ll recommend a dealer diagnosis.

Thanks again. -Tony

Service AWD Light on - No AWD

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