Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Wiper and Washer Systems: Testing and Inspection

Wiping Action Is Rough

1. Faulty linkage.

Wiping Action Sluggish

1. Faulty wiring or ground.
2. Faulty linkage.
3. Faulty wiper motor.

Wiper Motor Inoperative

1. Faulty wiring or ground.
2. Faulty wiper switch.
3. Faulty wiper motor.

Wiper Motor Does Not Stop When Switch Is Off

1. Faulty contact points in self-parking device.
2. Faulty wiper switch.

Washer Solution Is Not Pumped When Switch Is On

1. Faulty fuse.
2. Faulty wiring or ground.
3. Faulty washer pump.
4. Faulty or obstructed washer nozzles.

Washer Solution Pressure Is Low

1. Obstructed washer nozzle.
2. Faulty washer pump.