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LAN PWBD BRANCH LINE CIRCUIT LAN-289 < DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 9)] C D E F G H I J K L B A O P N PWBD BRANCH LINE CIRCUIT Diagnosis Procedure INFOID:0000000009175174 1. CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the following terminals and connectors for damage, bend and loose connection (unit side and con- nector side). - Automatic back door control module - CAN gateway (Models with around view monitor) Is the inspection result normal? YES-1 >> Models with around view monitor: GO TO 2. YES-2 >> Models without around view monitor: GO TO 3. NO >> Repair the terminal and connector. 2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) 1. Disconnect the connector of CAN gateway. 2. Check the continuity between the CAN gateway harness connector terminals. Is the inspection result normal? YES >> GO TO 3. NO >> Check the harness and repair the root cause (CAN communication circuit 2 side). 3. CHECK HARNESS FOR OPEN CIRCUIT 1. Connect the connector of CAN gateway. (Models with around view monitor) 2. Disconnect the connector of automatic back door control module. 3. Check the resistance between the automatic back door control module harness connector terminals. Is the measurement value within the specification? YES >> GO TO 4. NO >> Replace the body harness. 4. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the automatic back door control module. Refer to "AUTOMATIC BACK DOOR CONTROL UNIT : Diagnosis Procedure" Is the inspection result normal? YES (Present error)>>Replace the automatic back door control module. Refer to YES (Past error)>>Error was detected in the automatic back door control module branch line. NO >> Repair the power supply and the ground circuit. CAN gateway harness connector Continuity Connector No. Terminal No. M5 4 6 Existed 10 12 Existed Automatic back door control module harness connector Resistance ( Ω) Connector No. Terminal No. B55 24 12 Approx. 54 – 66 |