Sök
B0103
System
Supplemental Restraint (Airbag)
Scanner som krävs
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Front Impact Sensor Communication Fault

Understand B0103, common causes, and the right TOPDON scanner to diagnose it.

Front impact sensor not communicating with SRS module.

Vanliga symptom

  • SRS lamp
  • Multiple B-codes after bumper work

Typiska orsaker

  • Front crash sensor fault
  • Radiator support harness damage
  • Corrosion at sensor

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 B0103 mean?
B0103 indicates front impact sensor communication fault. Front impact sensor not communicating with SRS module.
Can I diagnose B0103 with a basic code reader?
B0103 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 B0103?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with B0103?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.