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Home >> Infiniti >> 2011 >> M37x AWD 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 RDR-R And APA Circuit >> CAN
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CAN


MAIN LINE BETWEEN RDR-R AND APA 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 B201
- Harness connector M117
- Harness connector M20 and PCB harness side connector
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.
- Side radar RH
- Harness connectors B201 and M117
2. Check the continuity between the side radar RH harness connector and the harness connector.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair the main line between the side radar RH and the harness connector B201.
3.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the harness connector M20.
2. Check the continuity between the harness connectors.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair the main line between the harness connectors M117 and M20.
4.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors M150 and M151.
2. Check the continuity between the PCB harness connector and the harness connector.





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 side radar RH and the accelerator pedal actuator.
NO - Replace the PCB harness.
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