Diagnosis Procedure
WARNING: This page is about a different car, the 2018 Infiniti Q60. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK IPDM E/R SELF-DIAGNOSTIC RESULT
- Turn ignition switch ON.
- Erase the DTC of IPDM E/R.
- Turn ignition switch OFF.
- Turn ignition switch ON and check the DTC again.
Is DTC detected?
YES
Repair or replace the malfunctioning part. Refer to DTC Index .
NO
GO TO 2.
- CHECK IGNITION RELAY (IPDM E/R) CONTROL SIGNAL
Check voltage between BCM harness connector and ground.
(+)
(-)
Condition
Voltage
BCM
Connector
Terminal
M14
70
Ground
Ignition switch
ON
0 - 0.5 V
Is the inspection result normal?
YES
GO TO 3.
NO
Replace BCM. Refer to Removal and Installation .
- CHECK IGNITION RELAY (IPDM E/R) CONTROL SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect BCM and IPDM connectors.
- Check continuity between BCM harness connector and IPDM E/R harness connector.
BCM
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
M14
70
E121
43
Existed
Is the inspection result normal?
YES
Replace IPDM E/R. Refer to Removal and Installation .
NO
Repair or replace harness.