Relay, Wiper, On And Off: Description
The wiper On and Off relay is a conventional International Standards Organization (ISO) micro relay. Relays conforming to the ISO specifications have common physical dimensions, current capacities, terminal patterns, and terminal functions. This relay is contained within a small, rectangular, molded plastic housing and is connected to all of the required inputs and outputs through five integral male terminals that extend from the relay base plate.
Internally, the wiper On and Off relay is a electromechanical device that consists of an electromagnetic coil, a resistor and a pair of normally open electrical contacts. One of the two electrical contacts is fixed, while the other contact is movable. The movable relay contact is held away from the fixed contact by spring pressure. The wiper On and Off relay for this vehicle is installed in a cavity within the front Power Distribution Center (PDC), which is located on the top of the right front wheel house ahead of the strut tower within the engine compartment. Refer to the layout label on the underside of the PDC cover for specific relay cavity assignment information.
The wiper On and Off relay cannot be repaired or adjusted and, if ineffective or damaged, the relay unit must be replaced.