U0136
System
Network (CAN Bus)
Scanner required
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication With Steering-Angle Sensor Module

Understand U0136, common causes, and the right SEAFLO pump to diagnose it.

Steering angle sensor module offline — stability control and lane assist need SAS input.

Common symptoms

  • ESC light on
  • Lane keep unavailable
  • Stability control disabled

Typical causes

  • Failed SAS in clock spring
  • CAN wiring in steering column
  • Clock spring damage after airbag service

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 U0136 with a basic code reader?
U0136 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 U0136?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.