Wiper & Washer System (Circuit Diagnosis)
WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FRONT WIPER MOTOR (HI) OUTPUT VOLTAGE
CONSULT
- Turn ignition switch OFF.
- Disconnect front wiper motor connector.
- Turn ignition switch ON.
- Select "FRONT WIPER" in "Active Test" mode of "IPDM E/R".
- With operating the test item, check voltage between front wiper motor harness connector and ground.
(+)
(-)
Condition
Voltage
(Approx.)
Front wiper motor
Connector
Terminal
E23
4
Ground
FRONT WIPER
Hi
Battery voltage
Off
0 V
Is the inspection result normal?
YES
Replace front wiper motor. Refer to Removal and Installation .
NO
GO TO 2.
- CHECK FRONT WIPER MOTOR (HI) CIRCUIT
- Turn ignition switch OFF.
- Disconnect IPDM E/R connector.
- Check continuity between IPDM E/R harness connector and front wiper motor harness connector.
IPDM E/R
Front wiper motor
Continuity
Connector
Terminal
Connector
Terminal
E121
18
E23
4
Yes
- Check continuity between IPDM E/R harness connector and ground.
IPDM E/R
Ground
Continuity
Connector
Terminal
E121
18
No
Is the inspection result normal?
YES
Replace IPDM E/R. Refer to Removal and Installation .
NO
Repair or replace harness.