Skylark L4-138 2.3L DOHC VIN D MFI QUAD 4 (1989)
defective.
3.
If motor operates at one speed in both test positions, check for short between high and low speed motor brushes and repair as needed.
Motor Inoperative In Delay Mode
1.
Disconnect wiper switch electrical connector at pulse control module and connect ohmmeter between brown and dark green wire terminals in
connector.
2.
Meter readings should be approximately 50 ohms with switch in minimum delay position to 500,000 ohms with switch in maximum delay position.
3.
If readings are as specified, pulse control module is defective. If readings are not as specified, wiper switch is defective.
Motor Will Not shutoff
1.
Disconnect electrical connector to wiper motor.
2.
Connect jumper wire between motor terminals 2 and 3, and apply battery voltage to terminal 4, Fig. 10.
3.
If motor runs to park position and stops, control switch is defective.
4.
If motor does not park properly, check for defective park switch, brush holder or park switch actuator.
Wipers Stop But Do Not Return To Park
1.
Rotate wiper switch to off position, disconnect wiper motor electrical connector and connect jumper wire between motor terminals 2 and 3.
Connect 12 volt power source to terminal 4, Fig. 10.
2.
If wipers do not return to park position, check park switch actuator and brush holder inside motor and repair or replace as necessary.
3.
If wipers return to park position, connect wiper motor electrical connector and check current between terminals 2 and 3 using test lamp.
4.
If lamp lights, check for open circuit in white wire between terminal 4 and fuse block. If lamp does not light, check for open circuit in orange wire
between terminal 3 and control switch.
5.
If wiring has continuity, replace control switch.
Wipers Park Above Normal Position
1.
Rotate wiper switch to off position, disconnect wiper motor electrical connector and check continuity between motor terminal 3 and ground using
test lamp.
2.
If lamp lights, check crank arm and linkage for proper installation. If lamp does not light repair or replace motor as necessary.
