Toyota
Dodge Durango
 Service Manual
Power Lock Systems » Description and operation
Headlamp relay

The headlamp (or security) 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 headlamp relay is a electromechanical device that switches battery current to the headlamps when the high-line Central Timer Module (CTM) grounds the relay coil. See Headlamp Relay in the Diagnosis and Testing section of this group for more information.

The headlamp relay is located in the Power Distribution Center (PDC), behind the battery on the left side of the engine compartment.

The headlamp relay cannot be repaired and, if faulty or damaged, it must be replaced.

    More about «Description and operation»:

    Central timer module

    Power lock switch

    Power lock motor

    Remote keyless entry transmitter

    Remote keyless entry receiver

    Driver unlock relay

    Headlamp relay

    Horn relay

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