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B0103
System
Supplemental Restraint (Airbag)
Benötigter Scanner
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.

Häufige Symptome

  • SRS lamp
  • Multiple B-codes after bumper work

Typische Ursachen

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

Welchen Scanner brauchen Sie?

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

Nutzen Sie Live-Daten und Freeze Frame, bevor Sie Teile tauschen. ABS-, SRS- und U-Codes erfordern meist einen Vollsystem-Scanner.

Diagnose-Tipps

  • Freeze Frame erfassen, wenn der Code erstmals gesetzt wird
  • Code erst nach Behebung der Ursache löschen
  • Auf verwandte pending codes prüfen
  • Batteriespannung über 12,4 V prüfen, bevor Sie Sensoren verdächtigen

Empfohlene TOPDON Scanner

Häufig gestellte Fragen

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.