DTC Diagnosis Procedure
WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
Power is supplied to the rear window defogger with BCM control.
- CHECK FUSES
Check if any of the following fuses in the IPDM E/R are blown.
COMPONENT PARTS
AMPERE
FUSE NO.
IPDM E/R
15A
46
IPDM E/R
15A
47
Is the inspection result normal?
YES
GO TO 2
NO
Replace the blown fuse after repairing the affected circuit.
- CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT
- Turn ignition switch ON.
- Check voltage between IPDM E/R connector E124 terminal 60 and ground.
Terminals
Condition of rear window defogger switch
Voltage (V)
(Approx.)
(+)
(-)
IPDM E/R connector
Terminal
E124
60
Ground
ON
Battery voltage
OFF
0 V
Is the inspection result normal?
YES
GO TO 3
NO
Replace IPDM E/R. Refer to Removal and Installation .
- CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to Intermittent Incident
Is the inspection result normal?
YES
Check the following:
- Battery power supply circuit.
- IPDM E/R.
NO
Repair or replace the malfunctioning parts.