Diagnosis Procedure
WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
- Turn the ignition switch OFF.
- Disconnect the battery cable from the negative terminal.
- Disconnect the following harness connectors.
- ECM
- Low tire pressure warning control unit
- A/C auto amp.
- Check the continuity between the low tire pressure warning control unit harness connector and the A/C auto amp. harness connector.
Low tire pressure warning control unit harness connector A/C auto amp. harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. M43 2 M66 12 Existed 1 11 Existed 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.