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Service four wheel drive, codes C0392 and C0398

Tiny
HAPPYCREW
  • MEMBER
  • 2009 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 90,000 MILES
I'm having codes C0392 and c0398 I've changed the rps and it's still says service 4 wheel drive. I have also checked the wiring and from what I can tell their are no shorts and all connections are good. Would really like a diagram for this.
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Tuesday, October 8th, 2019 AT 5:48 PM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

Here is a tutorial for you to view on how to test wiring:

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

I've attached step-by-step instructions below on how to test/diagnose those 2 codes. The last few pictures is of the wiring diagram you requested. Hope this helps and thanks for using 2CarPros.

Danny-
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Thursday, October 10th, 2019 AT 3:50 PM

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