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Service 4wd light
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Question
Fergy04
Need help bought a 2005 Suburban Z71 service 4wd light on and is stuck in 4wd auto. Tested dash switch found it was bad replaced switch still have same problem so replaced encoder motor with delco encoder motor ,when tested dash switch light up as transfere case in neutral pressed dash button to turn motor to auto to install light just flashes and encoder motor doesn't turn , So replaced the TCCM still has same problem. It is a aftermarket TCCM so came preprogrammed. Pulled trec fuse with old encoder motor installed and could here axle actuator motor working but that's it any help would be appreciated.
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