Trailer Tow Relay - Description

DESCRIPTION





Vehicles equipped with an optional trailer tow preparation package have four trailer tow relays, one each for the trailer tow stop/turn right and left and one each for the trailer stop lamp right and left. 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 included with the trailer tow preparation wire harness that is shipped loose in the glove box for customer or dealer installation at the rear of the vehicle. A trailer tow stop/turn relay is located behind the rear fascia below each outer tail lamp, while a trailer stop lamp relay is located behind the rear fascia below each outboard end of the rear bumper reinforcement. Each relay and connector is wrapped within an isolator envelope for sound deadening and anti-rattle protection. Refer to the appropriate wiring information for specific relay cavity assignment information.

Any of the trailer tow relays cannot be adjusted or repaired and, if ineffective or damaged, the affected unit must be replaced.