Jump to content

'15 Silverado 1500 Service 4WD - U0403-71

papageoff
 Share

Recommended Posts

papageoff Enthusiast

papageoff

Posted
Posted

I just had the transmission rebuilt at a reputable local shop a few months ago, but haven't driven the truck very much since. 

 

Wednesday, I tried to put it into 4auto and it took forever and eventually said Service4WD in the DIC.  I pulled the codes and found the following:
 

  1. U0403-71 - Invalid Data Received From Transfer Case
  2. C0379-58 - Front axle actuator related I think

 

The t-case is definitely shifting.  I hear it and if I go to 4Lo, the torque is there.  So, my plan is to drop the splash shield and have someone feel if that front axle actuator is moving when I put it into 4wd.  If not, then I'll start investigating why...  Any other suggestions? 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined

  • Who's Online   5 Members, 0 Anonymous, 575 Guests (See full list)

×
×
  • Create New...