Wipers Inoperative - All Modes

WIPERS INOPERATIVE - ALL MODES

DIAGNOSTIC AIDS
If the 30 A WIPER fuse located in the underhood fuse block is open, a short to ground in any one of the following circuits may be the cause:
- Windshield wiper motor high speed circuit
- Windshield wiper motor low speed circuit
- Windshield wiper motor park switch voltage supply circuit
- Windshield wiper motor park switch signal circuit
- Accessory voltage - WIPER RUN/ACC relay switched voltage circuit

If the 10 A WPR/WASHER fuse located in the instrument panel (I/P) fuse block is open , a short to ground in any one of the following circuits may be the cause:
- Accessory voltage circuit to the wiper switch
- Windshield washer switch signal circuit
- Windshield wiper switch low signal circuit
- Windshield wiper switch high signal circuit
- Windshield washer relay control circuit
- Headlamp washer relay control circuit

TEST DESCRIPTION

Step 1 - Step 9:

Step 10 - Step 22:

6. This step verifies that voltage is present from the ON/OFF relay with the wiper switch in the On position