IP Compartment Lamp
When the IP compartment is opened, the Rear Integration Module (RIM) Inadvertent Power Input is grounded via CKT 149 (DK BLU/WHT) through the IP compartment lamp bulb, CKT 148 (DK BLU), the P compartment lamp switch, and CKT 450 (BLK). In response to this input, the RIM energizes the INT LP relay to supply battery positive voltage (B+) via CKT 149 (DK BLU/WHT). The IP compartment lamp will light because it is receiving power and ground.