Cadillac U1048: No Communication With Rear Wheel Steering Control Module

Is your scanner showing Cadillac U1048?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Cadillac U1048: No Communication With Rear Wheel Steering Control Module

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$75-$200
Can I Still Drive?
:
Yes

What Does The Cadillac U1048 Code Mean?

Key on, and a message from a learned ID number was not detected for the five seconds. Modules on the Class 2 circuit monitor for data communications during vehicle operation.

What Are The Potential Causes Of The Cadillac U1048 Code?

  • RWSCM Class 2 circuit is open, shorted to ground or to B+
  • RWSCM ignition power circuit has a high resistance condition
  • RESCM main ground circuit(s) has a high resistance condition
  • RESCM (module) may have failed and is pulling the circuit low

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Dorman 86689C 399 PC Automotive Electrical Repair Kit
>>> GM Genuine Parts Steering Column Tilt Wheel And Telescope Control Module

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Cadillac U1048, DTCDECODE.

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