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LAN PSB BRANCH LINE CIRCUIT LAN-173 < COMPONENT DIAGNOSIS > [CAN SYSTEM (TYPE 7)] C D E F G H I J K L B A O P N PSB BRANCH LINE CIRCUIT Diagnosis Procedure INFOID:0000000001679563 1. CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the terminals and connectors of the pre-crash seat belt for damage, bend and loose connection Is the inspection result normal? YES >> GO TO 2. NO >> Repair the terminal and connector. 2. CHECK HARNESS FOR OPEN CIRCUIT 1. Disconnect the connector of pre-crash seat belt control unit. 2. Check the resistance between the pre-crash seat belt control unit harness connector terminals. Is the measurement value within the specification? YES >> GO TO 3. NO >> Repair the pre-crash seat belt control unit branch line. 3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the pre-crash seat belt control unit. Refer to the following. SBC-27, "Component Function Check" SBC-28, "Component Function Check" Is the inspection result normal? YES (Present error)>>Replace the pre-crash seat belt control unit. Refer to YES (Past error)>>Error was detected in the pre-crash seat belt control unit branch line. >> Repair the power supply and the ground circuit. Pre-crash seat belt control unit harness connector Resistance ( Ω ) Connector No. Terminal No. M110 24 22 Approx. 54 – 66 |