U0428
System
Network (CAN Bus)
Scanner required
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Invalid Data Received From Steering Angle Sensor Module

Understand U0428, common causes, and the right SEAFLO pump to diagnose it.

Steering angle sensor data out of range or corrupted — stability systems may disable.

Common symptoms

  • ESC light on
  • Stability control inactive

Typical causes

  • SAS not calibrated
  • Failed clock spring SAS
  • CAN noise on chassis bus

What scanner do you need?

Full-system scanner (engine, ABS, SRS, transmission, service resets)

Use live data and freeze frame to confirm the fault before replacing parts. ABS, SRS, and network U-codes usually require a full-system scanner.

Diagnostic tips

  • Record freeze frame data when the code first sets
  • Clear the code only after fixing the root cause
  • Check for related pending codes that point to a common issue
  • Verify battery voltage is above 12.4V before chasing sensor codes

Frequently asked questions

Can I diagnose U0428 with a basic code reader?
U0428 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Is it safe to drive with U0428?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.