DTC Lookup

Possible Causes

• 1. Emergency call unit battery malfunction (with emergency call system) (Refer to [EMERGENCY CALL UNIT REMOVAL/INSTALLATION] in workshop manual.) 2. Emergency call unit/telematics communication unit malfunction (Refer to [EMERGENCY CALL UNIT REMOVAL/INSTALLATION] in workshop manual.) (Refer to [TELE

BCM

B1477:14 [BCM]

SM3339519

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id990210123700

System malfunction location	Backup power supply unit circuit malfunction
Detection condition	• The door-electrical supply unit (driver's side) detects an open circuit or short to ground in the backup power supply unit circuit.
Fail-safe	• Inhibits the auto door lock function.
Possible cause	1. Malfunction in wiring harness (including connector/terminal) between backup power supply unit and door-electrical supply unit (driver's side) (See CIRCUIT INSPECTION.) (See CONNECTOR INSPECTION.) 2. Backup power supply unit malfunction (Refer to [BACKUP POWER SUPPLY INSPECTION] in workshop manual.) 3. Door-electrical supply unit (driver's side) malfunction (Refer to [DOOR-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION] in workshop manual.) 4. Body control module (BCM) malfunction (Refer to [BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION] in workshop manual.)
Repeatability verification procedure	1. Clear the DTC recorded in the memory. (See CLEARING DTC.)
1	Door-electrical supply unit (driver's side)
2	Backup power supply unit