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Transfer case wiring diagrams my vehicle will not go back into two wheel drive

Tiny
AMY ROSS
  • MEMBER
  • 2001 CHEVROLET BLAZER
  • 4.2L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 170,000 MILES
I changed my transfer case control module and now my vehicle will not go back into two wheel drive. It is stuck in neutral position, when I try to change positions with the switch it blinks and all the lights go out, then my service light comes on.
Sunday, December 24th, 2017 AT 9:52 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Hello,

Is sounds like you have a fuse or the transfer case encoder actuator is out but to be sure lets run a simple test. There are five fuses that run the system.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check to see if the encoder is getting a signal and if so replace the actuator.

You will need to raise the car up safely to get the job done.

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

Please let us know what happens.

Cheers, Ken
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Sunday, April 25th, 2021 AT 11:23 AM

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