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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 2.0L - DTCS B1810-00 To P0111-00 >> DTC Troubleshooting >> B25CB-00-Driver Door Ajar Switch 1/Driver Door Ajar Switch 2 Correlation >> Possible Causes

Possible Causes

Possible Causes
DRIVER DOOR NOT LATCHED PROPERLY
HIGH RESISTANCE IN THE DRIVER DOOR SECONDARY AJAR SWITCH CIRCUIT
HIGH RESISTANCE IN THE DRIVER DOOR AJAR SWITCH SENSE CIRCUIT
FAULTY VEHICLE SPEED SENSOR SIGNAL
DRIVER DOOR LATCH
BODY CONTROL MODULE (BCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .