Windshield Wiper and Washer Diagnosis

Wipers Do Not Operate

1. Ensure that fuse is not blown.
2. Ensure for proper ground connection.

Wipers Do Not Operate At High Or Low Speed

1. Check wiper switch.

Wipers Do Not Operate In Intermittent Mode

1. Check Intermittent wiper relay terminal voltage.

Wipers Fail To Stop

1. Check wiper motor.

Interval Period Will Not Adjust

1. Check interval adjustment switch.
2. Check Intermittent wiper relay.

Washer Does Not Work

1. Wiper motion coordinated with washer is possible.
a. Check washer motor.
2. Wiper motion coordinated with washer not possible.
a. Check washer switch.

Wipers Do Not Operate Coordinated With Washer

1. Check intermittent wiper relay.

ETACS SYSTEM

Fig. 1 Wiper System Troubleshooting Chart (Part 1 Of 2):

Fig. 1 Wiper System Troubleshooting Chart (Part 2 Of 2):

Refer to Fig. 1, when troubleshooting the ETACS wiper system.