Sök
B0071
System
Supplemental Restraint (Airbag)
Scanner som krävs
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Front Impact Sensor Internal Fault

Understand B0071, common causes, and the right TOPDON scanner to diagnose it.

Front impact sensor failed internal self-test.

Vanliga symptom

  • Airbag light on
  • Sensor replacement required

Typiska orsaker

  • Failed crash sensor
  • Sensor after minor hit
  • Mounting bracket damaged

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 B0071 mean?
B0071 indicates front impact sensor internal fault. Front impact sensor failed internal self-test.
Can I diagnose B0071 with a basic code reader?
B0071 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 B0071?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with B0071?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.