U0428 moderate

Invalid Data Received From Steering Effort Control Module

The U0428 code means the vehicle's onboard diagnostic system has detected: Invalid Data Received From Steering Effort Control Module. This is a moderate severity code.

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Keep driving?
Short distances only
DIY difficulty
hard
Estimated cost
$300 - $1,200 (parts and labor)
Diagnose CAN Bus Issues
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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

  • Variable steering effort not working
  • Steering too light or too heavy for speed
  • Steering effort not changing between modes
  • EPS warning light on

Probable Causes (Ranked by Likelihood)

  • Failed steering effort module Very High
  • Steering torque sensor sending bad data High
  • CAN bus interference Moderate
  • Vehicle speed data not reaching EPS Low

Step-by-Step Diagnostic Procedure

  1. Scan steering module for codes

  2. Test torque sensor signal

  3. Check vehicle speed input to EPS

  4. Verify CAN bus communication

Frequently Asked Questions

Can I drive with U0428?

Short distances. Steering works but effort may not match your speed, which feels unnatural.

What causes U0428?

Usually the torque sensor or vehicle speed data not reaching the power steering module.

How much does U0428 cost to fix?

Between $300 and $1,200.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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