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B1122
System
Supplemental Restraint (Airbag)
Scanner som krävs
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Passenger Airbag Squib 2 Circuit

Understand B1122, common causes, and the right TOPDON scanner to diagnose it.

Passenger dual-stage airbag second squib circuit.

Vanliga symptom

  • SRS lamp

Typiska orsaker

  • Passenger module stage 2 fault
  • Harness in dash
  • Prior deployment repair incomplete

Vilken scanner behöver du?

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

Använd live-data och freeze frame innan du byter delar. ABS-, SRS- och U-koder kräver oftast en fullsystems-scanner.

Diagnostiktips

  • Spara freeze frame när koden först sätts
  • Rensa koden först efter att orsaken är åtgärdad
  • Kontrollera relaterade väntande koder
  • Verifiera batterispänning över 12,4 V innan du misstänker sensorer

Rekommenderade TOPDON-scannrar

Vanliga frågor

What does B1122 mean?
B1122 indicates passenger airbag squib 2 circuit. Passenger dual-stage airbag second squib circuit.
Can I diagnose B1122 with a basic code reader?
B1122 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Which TOPDON scanner do I need for B1122?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with B1122?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.