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Home >> Infiniti >> 2012 >> 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 M&A And DLC Circuit >> CAN
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CAN




MAIN LINE BETWEEN M&A AND DLC 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
-Combination meter
-Harness connectors M105 and M181
4.Check the continuity between the combination meter 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 combination meter and the data link connector.
NO- Replace the PCB harness.
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