CAN

M&A BRANCH LINE CIRCUIT

Diagnosis Procedure


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 connector side).
-Combination meter
-Harness connector M24 and PCB harness side connector
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 combination meter.
2.Check the resistance between the combination meter harness connector terminals.





Is the measurement value within the specification?
YES- GO TO 3.
NO- GO TO 4.

3. CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the combination meter Power Supply And Ground Circuit.
Is the inspection result normal?
YES (Present error)-Replace the combination meter. Removal And Installation.
YES (Past error)-Error was detected in the combination meter branch line.
NO- Repair the power supply and the ground circuit.

4. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.Disconnect the harness connector M24.
2.Check the continuity between the combination meter harness connector and the harness connector.





Is the inspection result normal?
YES- Replace the PCB harness.
NO- Repair the harness between the combination meter harness connector M53 and the harness connector M24.