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Home >> Infiniti >> 2011 >> M37 V6-3.7L (VQ37VHR) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Component Tests and General Diagnostics >> Main Line Between AV And M&A Circuit >> CAN
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CAN


MAIN LINE BETWEEN AV AND M&A CIRCUIT





Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect the following harness connectors.
- ECM
- AV control unit
- Combination meter
4. Check the continuity between the AV control unit harness connector and the combination meter harness connector.
- Models with navigation system





- Models without navigation system





Is the inspection result normal?
YES (Present error)-Check CAN system type decision again.
YES (Past error)-Error was detected in the main line between the AV control unit and the combination meter.
NO - Replace the PCB harness.
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