No.2 MALFUNCTION IN WINDSHIELD WIPER OPERATION


id0902h3815200

POSSIBLE CAUSE

• Malfunction in the WIPER 20 A fuse

• Malfunction in the wiper and washer switch

• Malfunction in the windshield wiper motor

• Malfunction in the related wiring harness

Diagnostic Procedure

STEP

INSPECTION

ACTION

1
INSPECT WIPER AND WASHER SWITCH VOLTAGE
Turn the ignition switch to the LOCK position.
Disconnect the wiper and washer switch connector.
Turn the ignition switch to the ON position.
Measure the voltage at wiper and washer switch terminal K.
Is the voltage more than 10 V?
Yes
Go to the next step.
No
Repair the related wiring harness.
2
INSPECT RELATED WIRING HARNESS FOR OPEN CIRCUIT
Turn the ignition switch to the LOCK position.
Measure the resistance between the following terminals and ground. - Wiper and washer switch terminal C and ground - Wiper and washer switch terminal L and ground
Is the resistance less than 5 ohms?
Yes
Go to the next step.
No
Repair the related wiring harness.
3
INSPECT WIPER AND WASHER SWITCH
Inspect the wiper and washer switch. (See WIPER AND WASHER SWITCH INSPECTION.)
Is the wiper and washer switch normal?
Yes
Go to the next step.
No
Replace the wiper and washer switch. (See WIPER AND WASHER SWITCH REMOVAL/INSTALLATION.)
4
INSPECT RELATED WIRING HARNESS FOR OPEN CIRCUIT
Turn the ignition switch to the LOCK position.
Measure the resistance between windshield wiper motor terminal D and ground.
Is the resistance less than 5 ohms?
Yes
Inspect the windshield wiper motor.
No
Repair the related wiring harness.