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Push button 4WD won't engage

Tiny
CPI1973
  • MEMBER
  • 1993 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 196,000 MILES
I have replaced the motor on transfer case and switch fuses are good there is no noise at all when I try to engage the 4wd system am at a standstill what else can I check! Have you ever ran into this problem before any advice on this?
Wednesday, December 24th, 2008 AT 6:33 AM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

This could be an issue with the electronic shift control module for the transfer case.
First check the number 12 circuit breaker in the interior fuse panel it should be a 20A breaker.

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

Then you will have to see if there is power to the module.
I have included the pinout for the module below.

https://www.2carpros.com/articles/how-to-check-wiring

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.
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Sunday, October 17th, 2021 AT 11:47 AM

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