Sidekick 4WD L4-1590cc 1.6L SOHC 0 TBI 8V (1990)
Wiper Motor: Testing and Inspection
Rear Wiper System
Automatic Stop Action Test
Refer to Wiper and Washer System/Diagrams during diagnosis and testing procedures.
1.
Connect battery positive terminal to yellow/blue terminal of motor and battery negative terminal to black lead wire on motor, then connect a
jumper between orange and blue/green terminals of motor.
2.
Motor output shaft should come to a halt at a certain angular position, corresponding to starting position of wiper blade.
3.
Stop motor a number of times, and ensure that motor stops in same position each time.
Brush & Commutator Test
Refer to Wiper and Washer System/Diagrams during diagnosis and testing procedures.
1.
Using a circuit tester, check continuity between orange terminal and black lead wire.
2.
If continuity is poor, check brush to commutator contact area.
3.
If contact area is fouled, use a cloth dampened with gasoline to clean area.
4.
If contact area is coarse or burnt, use a suitable sandpaper to smooth it.
Internal Wiper Relay Test
Refer to Wiper and Washer System/Diagrams during diagnosis and testing procedures.
1.
Disconnect wiper and washer switch electrical connector, then turn wiper switch to ``INT'' position.
2.
Connect battery positive terminal to yellow/white terminal on Sidekick or yellow/blue terminal on Swift and battery negative terminal to black
terminal.
3.
If an operating sound is emitted, relay is operating properly.
No-Load Run Test
Refer to Wiper and Washer System/Diagrams during diagnosis and testing procedures.
1.
Connect battery positive terminal to orange terminal on motor and battery negative terminal to black lead wire on motor.
2.
If motor rotates at 38-46 RPM, motor is operating properly.
3.
If not, motor is defective, replace motor.
Fig. 1 Troubleshooting Chart
Wiper/Washer Switch Test
Refer to Wiper and Washer System/Diagrams during diagnosis and testing procedures.
