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BACK DOOR SWITCH DLK-681 < DTC/CIRCUIT DIAGNOSIS > [TYPE 3] C D E F G H I J L M A B DLK N O P DTC/CIRCUIT DIAGNOSIS BACK DOOR SWITCH Component Function Check INFOID:0000000010708358 1. CHECK FUNCTION 1. Turn ignition switch ON. 2. Select “DOOR LOCK” of “BCM” using CONSULT. 3. Select “DOOR SW-BK” in “DATA MONITOR” mode. 4. Check that the function operates normally according to the following conditions. Is the inspection result normal? YES >> Back door switch is OK. NO >> Refer to DLK-681, "Diagnosis Procedure" Diagnosis Procedure INFOID:0000000010708359 1. CHECK BACK DOOR SWITCH INPUT SIGNAL 1. Turn ignition switch OFF. 2. Disconnect back door lock assembly connector. 3. Check signal between back door lock assembly harness connector and ground using oscilloscope. Is the inspection result normal? YES >> GO TO 3. NO >> GO TO 2. 2. CHECK BACK DOOR SWITCH CIRCUIT 1. Disconnect BCM connector. 2. Check continuity between back door lock assembly harness connector and BCM harness connector. 3. Check continuity between back door lock assembly harness connector and ground. Is the inspection result normal? YES >> Replace BCM. Refer to BCS-121, "Removal and Installation" . NO >> Repair or replace harness. 3. CHECK BACK DOOR SWITCH GROUND CIRCUIT Check continuity between back door lock assembly harness connector and ground. Monitor item Condition Status DOOR SW-BK Back door Open On Closed Off (+) (–) Voltage Back door lock assembly Connector Terminal D168 3 Ground 9 – 16 V Back door lock assembly BCM Continuity Connector Terminal Connector Terminal D168 3 B47 11 Existed Back door lock assembly Ground Continuity Connector Terminal D168 3 Not existed |