Lost Communication With Steer-By-Wire Module
The U0297 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Steer-By-Wire Module. This is a critical severity code.
- Keep driving?
- No -- stop driving
- DIY difficulty
- hard
- Estimated cost
- $1,000 - $5,000 (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
- No steering response
- Steering fault critical warning
- Vehicle in emergency mode
- Complete loss of steering feel
- Multiple safety warnings displayed
Probable Causes (Ranked by Likelihood)
- Failed steer-by-wire controller Very High
- Steering actuator failure High
- CAN bus total communication loss Moderate
- Dual-redundancy system both failed Low
Step-by-Step Diagnostic Procedure
-
Scan steer-by-wire module for codes
-
Test steering actuator
-
Verify redundant systems
-
Check CAN bus backbone integrity
Frequently Asked Questions
Can I drive with U0297?
No. Steer-by-wire failure means no steering control. Stop immediately and call for a tow.
What causes U0297?
Typically a failed controller or actuator. These systems have redundancy so total failure is rare.
Is steer-by-wire safe?
Modern systems have multiple redundancies. Complete failure is extremely rare.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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