B2421
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1. PERFORM DTC CONFIRMATION PROCEDURE
1.Turn ignition switch ON.
2.Check "Self Diagnostic Result" mode of "AUTOMATIC BACK DOOR CONTROL UNIT" using CONSULT.
Is DTC detected?
YES- Refer to "Diagnosis Procedure" .
NO- INSPECTION END
Diagnosis Procedure
1. CHECK AUTOMATIC BACK DOOR CONTROL MODULE POWER SUPPLY AND GROUND CIRCUIT
1.Turn ignition switch OFF.
2.Check automatic back door control module power supply and ground circuit.
Refer to "AUTOMATIC BACK DOOR CONTROL UNIT : Diagnosis Procedure" Power Supply and Ground Circuit.
Is the inspection result normal?
YES- Replace automatic back door control module. Refer to "Removal and Installation" Automatic Back Door Control Module.
NO- Repair or replace the malfunctioning parts.