B0111
System
Supplemental Restraint (Airbag)
Scanner required
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Airbag Deployment Indicator Circuit

Understand B0111, common causes, and the right TOPDON scanner to diagnose it.

SRS module cannot verify airbag telltale lamp operation.

Common symptoms

  • No airbag light at key-on
  • Stored B-code

Typical causes

  • Burned out airbag warning bulb in cluster
  • Cluster fault
  • Wiring to indicator

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

Recommended TOPDON scanners

Frequently asked questions

Can I diagnose B0111 with a basic code reader?
B0111 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 B0111?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.