Components

Ignition Switch
Refer to the "Electronic Ignition System Diagnosis" procedure in the "Electronic Engine Controls".
Repair as needed.
If this component is good, go to the next item indicated on the Complaint-Condition Chart.

Wiper Motor
Check the circuits, connectors, and terminals that are attached to the wiper module.
Check for OPENS/SHORTS.
Wiper module should not be tested out of vehicle, it must be connected to the wiper switch to work properly. The internal control circuitry module and motor are serviced as one unit and should not be taken apart.
Repair is by replacement only.
If a new wiper motor is installed and the complaint is fixed, install the old motor to verify the problem was in the motor. If the complaint does not appear again, check the terminals and connections for damage, corrosion, and terminal tightness.

Wiper Switch
Refer to "Lever Combination Switch (LCS)" for testing.
Repair/replace as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Washer Pump
Check the circuits, connectors, and terminals that are attached to the washer pump.
Check for OPENS/SHORTS
Disconnect washer pump and connect a DYOM between the two terminals (1 and 2) of the harness connectors. With ignition in RUN, activate the wash switch.
- If battery voltage is measured, all of the circuits and the switch are OK. Replace the washer pump.
- If battery voltage is not measured, check the circuits and switch for OPENS/SHORTS.
Repair/replace as needed.
If a new pump is installed and the compliant is fixed, install the old pump to verify that the problem was the pump. If the complaint does not appear again, check the terminals and connections for damage, corrosion, and terminal tightness.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Miscellaneous
Excessive noise can be caused by over-torque of the wiper module fasteners. Over-torquing the fasteners sometimes causes the wiper bracket to contact the car sheet metal. Metal-to-metal contact provides a path for noise to propagate.
Inspect the grommets that separate the wiper motor and car sheet metal to see if there is any metal-to-metal contact. If the grommet is torn replace it. If the grommet is compressed to tightly loosen the bolts to eliminate and metal-to-metal contact.
If this component is good go to the next item indicated on the Complaint-Condition Chart.