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Home >> Infiniti >> 2010 >> QX56 AWD V8-5.6L (VK56DE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Component Tests and General Diagnostics >> Main Line Between ADP and AV Circuit
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Main Line Between ADP and AV Circuit





MAIN LINE BETWEEN ADP AND AV 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 (connector side and harness side).
- Harness connector B69
- Harness connector M40
Is the inspection result normal?
YES - GO TO 2.
NO - Repair the terminal and connector.
2.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the following harness connectors.
- Harness connectors B200 and B37
- Harness connectors B69 and M40
2. Check the continuity between the harness connectors.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair the main line between the harness connectors B37 and B69.
3.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the connector of AV control unit.
2. Check the continuity between the harness connector and the AV control unit harness connector.





Is the inspection result normal?
YES (Present error)-Check the following items again.
- Decision of CAN system type.
- Not received CONSULT-III data [SELF-DIAG RESULTS, CAN DIAG SUPPORT MNTR ("ECU list" included)].
- Procedure for detecting root cause.
YES (Past error)-Error was detected in the main line between the driver seat control unit and the AV control unit.
NO - Repair the main line between the harness connector M40 and the AV control unit.
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