Service four wheel drive, codes C0392 and c0398

2009 CHEVROLET SILVERADO

90,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC

HAPPYCREW

MEMBER
1 POST
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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.

Oct 8, 2019 at 5:48 PM

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DANNY L

CAR REPAIR CONTRIBUTOR
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-

Images (Click to enlarge)

Oct 10, 2019 at 3:50 PM