Grand Cherokee 4WD V8-5.2L VIN Y (1998)
Wiper Relay: Description and Operation
SYSTEM OPERATION
The intermittent wipe relay is a International Standards Organization (ISO) micro-relay The terminal designations and functions are the same as a
conventional ISO relay. However, the micro-relay terminal orientation (or footprint) is different, current capacity is lower, and the relay case
dimensions are smaller than those of the conventional ISO relay.
The intermittent wipe relay is a electromechanical device that switches battery current to the windshield wiper motor or wiper motor park switch
when the relay coil is grounded by the Body Control Module (BCM) in response to inputs from the windshield wiper (multi-function) switch. See
the Diagnosis and Testing for more information on the intermittent wipe relay.
The intermittent wipe relay is located in the Power Distribution Center (PDC), in the engine compartment. Refer to the PDC label for relay
identification and location.
The intermittent wipe relay cannot be repaired and, if faulty or damaged, it must be replaced.
