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B1325
System
Body (Doors)
Benötigter Scanner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Driver Door Ajar Circuit

Understand B1325, common causes, and the right TOPDON scanner to diagnose it.

BCM thinks driver door is open when latched — door jamb switch or wiring fault.

Häufige Symptome

  • Dome light stays on
  • Alarm issues
  • Battery drain

Typische Ursachen

  • Failed door ajar switch
  • Wiring in door harness
  • Misaligned striker

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 B1325 mean?
B1325 indicates driver door ajar circuit. BCM thinks driver door is open when latched — door jamb switch or wiring fault.
Can I diagnose B1325 with a basic code reader?
B1325 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 B1325?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with B1325?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.