Hood Sensor/Switch (For Alarm): Description and Operation

DESCRIPTION





The hood ajar switch is a normally closed, single pole, spring-loaded plunger actuated switch that is used only on vehicles equipped with the Vehicle Theft Security System (VTSS) for sale in certain markets where it is required equipment. The switch is connected to the vehicle electrical system through the headlamp and dash wire harness.

The switch plunger (3) extends through a mounting collar (4) and sleeve on the upper end of the switch body. The sleeve has a one-time, self-adjustment feature that is activated after the switch is installed by closing the hood. Two integral latches (2) lock the switch into a keyed mounting hole in the stamped steel switch mounting bracket. The mounting bracket is secured toward the left rear of the engine compartment. The underside of the hood panel inner reinforcement actuates the switch plunger as the hood panel is closed.

An installed hood ajar switch cannot be readjusted or repaired. If the switch is damaged, ineffective, or requires readjustment, it must be replaced with a new unit.