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B1051
System
Supplemental Restraint (Airbag)
Scanner som krävs
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Pretensioner Deployment Control — Passenger

Understand B1051, common causes, and the right TOPDON scanner to diagnose it.

Passenger seat belt pretensioner circuit fault.

Vanliga symptom

  • Airbag light on

Typiska orsaker

  • Passenger pretensioner connector
  • Seat swap without transferring occupancy sensor
  • Wiring fault

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 B1051 mean?
B1051 indicates pretensioner deployment control — passenger. Passenger seat belt pretensioner circuit fault.
Can I diagnose B1051 with a basic code reader?
B1051 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 B1051?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with B1051?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.