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Home >> Jeep >> 2009 >> Commander Overland, 4WD >> Repair and Diagnosis >> Body & Frame >> Windows >> Driver Door Module (DDM) - Electrical Diagnostics >> DTC Troubleshooting >> U1001-Can B Bus (-) Circuit >> Possible Causes

Possible Causes

Possible Causes 
ACTIVE CAN B BUS DTCs IN FRONT CONTROL MODULE (FCM)
(D54) CAN B BUS (-) CIRCUIT OPEN TO PASSENGER DOOR MODULE
PASSENGER DOOR MODULE