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LAN ICC BRANCH LINE CIRCUIT LAN-221 < DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 4)] C D E F G H I J K L B A O P N ICC BRANCH LINE CIRCUIT Diagnosis Procedure INFOID:0000000006256392 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- - ADAS control unit - CAN gateway Is the inspection result normal? YES >> GO TO 2. 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). Refer to . 3. CHECK HARNESS FOR OPEN CIRCUIT 1. Connect the connector of CAN gateway. 2. Disconnect the connector of ADAS control unit. 3. Check the resistance between the ADAS control unit harness connector terminals. Is the measurement value within the specification? YES >> GO TO 4. NO >> Repair the ADAS control unit branch line. 4. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ADAS control unit. Refer to . Is the inspection result normal? YES (Present error)>>Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation" . YES (Past error)>>Error was detected in the ADAS control unit branch line. >> Repair the power supply and the ground circuit. CAN gateway harness connector Continuity Connector No. Terminal No. M125 4 6 Existed 10 12 Existed ADAS control unit harness connector Resistance ( Ω ) Connector No. Terminal No. B61 14 15 Approx. 54 – 66 |