B3000 SE Regular Cab 4WD V6-3.0L OHV (1998)
Wiper Motor: Testing and Inspection
CAUTION:
- Do not handle the wiper motor abusively when diagnosing the wiper operations. Failure to follow this caution may result in damage to the motor
magnets and will make the wiper motor inoperative. Rough handling of new replacement wiper motors may also damage the motor magnets.
To test the wiper motor on-vehicle, disconnect wiper mounting arm and pivot shaft from the motor and disconnect the electrical plug.
1. Disconnect positive battery cable.
2. Disconnect wiper linkage from motor.
3. Disconnect motor electrical connector.
4. Check low speed current draw at terminal (W).
- If current draw is greater than 3.5 amperes, replace the motor.
5. Check high speed current draw at terminal (DL/O).
- If current draw is greater than 5.5 amperes, replace the motor.
