Nissan Sentra Service Manual: Front wiper motor hi circuit

Nissan Sentra Service Manual / Driver controls / Wiper & washer / Dtc/circuit diagnosis / Front wiper motor hi circuit

Component function check

1. Check front wiper hi operation

Ipdm e/r auto active test

Start ipdm e/r auto active test. Refer to ww-15, "diagnosis description" (with intelligent key system) or ww-19, "diagnosis description" (without intelligent key system).
Check that the front wiper operates at the hi operation.

Consult active test

Select front wiper of ipdm e/r active test item.
While operating the test item, check that front wiper hi operation and off.

Hi : front wiper hi operation

Off : stop the front wiper.

Is the inspection result normal? Yes >> the front wiper motor hi circuit is normal.

No >> refer to ww-39, "diagnosis procedure".

Diagnosis procedure

Regarding wiring diagram information, refer to ww-24, "wiring diagram - with intelligent key" or ww-29, "wiring diagram - without intelligent key".

1. Check front wiper motor (hi) input voltage

Consult active test

Turn the ignition switch off.
Disconnect front wiper motor.
Turn the ignition switch on.
Select front wiper of ipdm e/r active test item.
While operating the test item, check voltage between ipdm e/r harness connector e45 and ground.

Is the inspection result normal?

Is the inspection result normal? YES >> GO TO 2.

NO >> Replace IPDM E/R. Refer to PCS-30, "Removal and Installation" (with Intelligent Key system) or PCS-58, "Removal and Installation" (without Intelligent Key system).

2. Check front wiper motor (hi) open circuit

Turn the ignition switch off.
Disconnect ipdm e/r.
Check continuity between ipdm e/r harness connector e45 and front wiper motor harness connector e1.

Is the inspection result normal?

Yes >> go to 3.

No >> repair or replace the harness or connectors.

3. Check front wiper motor (hi) short circuit

Check continuity between ipdm e/r harness connector e45 and ground.

Is the inspection result normal?

Is the inspection result normal? Yes >> repair or replace the harness or connectors.

No >> replace front wiper motor. Refer to ww-62, "removal and installation".

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