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LAN ECM BRANCH LINE CIRCUIT LAN-109 < COMPONENT DIAGNOSIS > [CAN SYSTEM (TYPE 5)] C D E F G H I J K L B A O P N ECM BRANCH LINE CIRCUIT Diagnosis Procedure INFOID:0000000001334345 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- - ECM - Harness connector E7 - Harness connector M69 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 ECM. 2. Check the resistance between the ECM harness connector terminals. - Diesel engine models - Gasoline engine models Is the measurement value within the specification? YES >> GO TO 3. NO >> Repair the ECM branch line. 3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to the following. EC-1106, "Diagnosis Procedure" • HR16DE (With EURO-OBD): • HR16DE (Without EURO-OBD): Is the inspection result normal? YES (Present error)>>Replace the ECM. Refer to the following. EC-1054, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair • HR16DE (With EURO-OBD): EC-25, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement" EC-388, "ADDITIONAL SERVICE WHEN REPLACING CON- TROL UNIT : Special Repair Requirement" • MR18DE: EC-692, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special YES (Past error)>>Error was detected in the ECM branch line. >> Repair the power supply and the ground circuit. ECM harness connector Resistance ( Ω ) Connector No. Terminal No. E16 100 99 Approx. 108 – 132 ECM harness connector Resistance ( Ω ) Connector No. Terminal No. E16 84 83 Approx. 108 – 132 |