Lost Communication With Roll Stability Control Module
The U0134 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Roll Stability Control Module. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $200 - $1000 (parts and labor)
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
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Common Symptoms
- Roll stability control warning light on
- AdvanceTrac or RSC warning message on dash
- Stability control system disabled
- Traction control light on
- ABS warning light may also illuminate
Probable Causes (Ranked by Likelihood)
- Failed roll stability control module Very High
- Damaged CAN bus wiring to RSC module High
- Faulty roll rate sensor Moderate
- ABS module failure affecting RSC communication Moderate
- Corroded ground connection at RSC module Low
Step-by-Step Diagnostic Procedure
-
Scan for DTCs in the RSC, ABS, and stability control modules
-
Check CAN bus wiring and connector at the RSC module
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Verify power supply and ground at the RSC module
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Test the roll rate sensor for proper operation
-
Check for TSBs related to RSC module updates
Frequently Asked Questions
Can I drive with code U0134?
You can drive short distances with caution, but the roll stability control system is disabled. This is especially important for SUVs and trucks, which have a higher center of gravity and are more prone to rollovers.
What is roll stability control?
Roll stability control (RSC) uses sensors to detect when a vehicle is at risk of rolling over during sharp turns or emergency maneuvers. It applies brakes to individual wheels and reduces engine power to prevent a rollover.
Is U0134 only on Ford vehicles?
While AdvanceTrac RSC is a Ford system, other manufacturers have similar systems under different names. U0134 can appear on any vehicle with a roll stability control system.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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