Diagnosis Procedure
WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK STARTER RELAY OUTPUT SIGNAL/CVT MODELS
- Turn ignition switch OFF.
- Disconnect BCM harness connector.
- Check voltage between BCM harness connector ground.
BCM connector
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
Ignition switch
Brake pedal
CVT selector lever
M20
62
Ground
ON
Depressed
P (Park) or N (Neutral)
Battery voltage
Other than above
0
Is the inspection result normal?
YES
Replace BCM. Refer to Removal and Installation .
NO
GO TO 2.
- CHECK STARTER RELAY OUTPUT SIGNAL CIRCUIT
- Disconnect IPDM E/R harness connector.
- Check continuity between IPDM E/R harness connector and BCM harness connector.
IPDM E/R
BCM
Continuity
Connector
Terminal
Connector
Terminal
E19
33
M20
62
Yes
- Check continuity between IPDM E/R harness connector and ground.
IPDM E/R
Ground
Continuity
Connector
Terminal
E19
33
Ground
No
Is the inspection result normal?
YES
Replace IPDM E/R. Refer to Removal and Installation .
NO
Repair harness connector.