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LAN M&A BRANCH LINE CIRCUIT LAN-49 < COMPONENT DIAGNOSIS > [CAN] C D E F G H I J K L B A O P N M&A BRANCH LINE CIRCUIT Diagnosis Procedure INFOID:0000000001666034 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 unified meter and A/C amp. for damage, bend and loose con- 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 unified meter and A/C amp. 2. Check the resistance between the unified meter and A/C amp. harness connector terminals. Is the measurement value within the specification? YES >> GO TO 3. NO >> Repair the unified meter and A/C amp. branch line. 3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the unified meter and A/C amp. Refer to METER AND A/C AMP. : Diagnosis Procedure" . Is the inspection result normal? YES (Present error)>>Replace the unified meter and A/C amp. Refer to YES (Past error)>>Error was detected in the unified meter and A/C amp. branch line. >> Repair the power supply and the ground circuit. Unified meter and A/C amp. harness connector Resistance ( Ω ) Connector No. Terminal No. M67 56 72 Approx. 54 – 66 |