Description

DESCRIPTION





Vehicles equipped with an optional factory-installed trailer towing package have two trailer tow relays, one for the trailer right turn and brake lamps and the other for the trailer left turn and brake lamps. The trailer tow relays are conventional International Standards Organization (ISO) micro relays. Relays conforming to the ISO specifications have common physical dimensions, current capacities, terminal patterns, and terminal functions. Each 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 spade-type terminals that extend from the relay base plate.

The trailer tow relays are located in the Power Distribution Center (PDC) in the engine compartment near the battery. Refer to the layout label on the underside of the PDC cover for specific relay cavity assignment information.

A trailer tow relay cannot be adjusted or repaired and, if ineffective or damaged, the unit must be replaced.