Liftgate Wiper/Washer Switch

Perform the diagnosis for the rear wiper and/or washer systems as described in this group before testing the rear wiper and washer switch. For circuit descriptions and diagrams, see Wiring Diagrams.

WARNING: On Vehicles equipped with airbags refer to passive restraint systems before attempting steering wheel, steering Column, or instrument panel component diagnosis or service. Failure to take the proper precautions could result in accidental airbag deployment and possible personal injury.

1. Remove the rear wiper and washer switch as described in this group.
2. Using an ohmmeter, check the switch continuity at the switch terminals as follows:
a. With the switch in the Off position, there should be no continuity between any two switch terminals.
b. With the switch knob depressed in the Wash position, there should be continuity between the fused ignition switch output circuit and the rear washer motor control circuit terminals.
c. With the switch in the Intermittent position, there should be continuity between the fused ignition switch output circuit and the rear wiper motor control (intermittent) circuit terminals.
d. With the switch in the On position, there should be continuity between the fused ignition switch output circuit and the rear wiper motor control circuit terminals.
3. If the switch fails any of the continuity checks, replace the faulty switch.