Ignition Key Halo Lamp

CIRCUIT OPERATION
The Body Control Module (BCM) controls the operation of the halo lamp upon vehicle entry. When the driver's door is OPENED the door ajar switch CLOSES, and circuit G75 is grounded. The BCM sees that the door is ajar and provides a ground path for the lamp on circuit M50.

Power for the lamp is supplied on circuit M1. This is the Ignition-Off Draw (IOD) circuit and is protected by a 10 Amp fuse located in cavity 13 of the junction block. Power for the fuse is supplied by circuit A7 from the Power Distribution Center (PDC). This circuit, A7, is protected by a 20 Amp fuse located in cavity G of the PDC.