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Home >> Infiniti >> 2011 >> M56 V8-5.6L (VK56VD) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Component Tests and General Diagnostics >> Main Line Between TPMS And HVAC Circuit >> CAN
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CAN


MAIN LINE BETWEEN TPMS AND HVAC 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
- Low tire pressure warning control unit
- A/C auto amp.
4. Check the continuity between the low tire pressure warning control unit harness connector and the A/C auto amp. 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 low tire pressure warning control unit and the A/C auto amp.
NO - Replace the PCB harness.
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