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DLK-218 < DTC/CIRCUIT DIAGNOSIS > B2420 CLOSE SWITCH B2420 CLOSE SWITCH DTC Logic INFOID:0000000009649116 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PERFORM DTC CONFIRMATION PROCEDURE 1. Turn ignition switch ON. 2. Operate automatic back door. 3. Check “Self Diagnostic Result” mode of “AUTO BACK DOOR” using CONSULT. Is DTC detected? YES >> Refer to DLK-218, "Diagnosis Procedure" . NO >> INSPECTION END Diagnosis Procedure INFOID:0000000009649117 1. CHECK AUTOMATIC BACK DOOR CONTROL MODULE OUTPUT SIGNAL 1. Turn ignition switch OFF. 2. Disconnect back door lock assembly connector. 3. Check voltage between back door lock assembly harness connector and ground. Is the inspection result normal? YES >> GO TO 3. NO >> GO TO 2. 2. CHECK CLOSE SWITCH CIRCUIT 1. Disconnect automatic back door control module connector. 2. Check continuity between automatic back door control module harness connector and back door lock 3. Check continuity between automatic back door control module harness connector and ground. Is the inspection result normal? YES >> Replace automatic back door control module. Refer to DLK-495, "Removal and Installation" DTC CONSULT display description DTC detecting condition Possible cause B2420 CLOSE SW When the automatic back door control unit detects for 3 second or more after starting the closure • Close switch (Close switch circuit is open or • Automatic back door control mod- ule (+) (–) Voltage Back door lock assembly Connector Terminal D190 5 Ground 9 - 16 V Automatic back door control module Back door lock assembly Continuity Connector Terminal Connector Terminal B8 20 D190 5 Existed Automatic back door control module Ground Continuity Connector Terminal B8 20 Not existed |