Park, Side Marker, and Rear License Lamps

For park/marker operation, power is supplied from the PARK LP fuse through CKT 240 (ORN) to terminal F7 of the body relay block where power is fed to the following components:
- The headlamp switch
- The park lamp relay coil
- The load side of the relay contacts

For automatic operation, the body control module (BCM) grounds the park lamp relay coil to feed CKT 74 (LT BLU) during auto headlamp operation. When the headlamp switch is in the PARK or HEAD position, current flows through CKT 74 (LT BLU) to the underhood fuse block. The current feeds the following fuses:
- The FR PRK fuse
- The LR PRK fuse
- The RR PRK fuse
- The TRL PRK fuse (Utility)

The FR PRK fuse supplies power to the park side of the RH and LH park and turn signal lamps. The FR PRK fuse supplies power to the LH and RH front side marker lamps terminal A. During normal operation, when the park lamps and the turn signals are turned ON, voltage would be applied to both terminals of the front side marker lamp when the [1][2]turn signal lamp flashes ON. When this action occurs, the side marker lamp turns OFF. When the turn signal lamp turns OFF, the side marker lamp will illuminate again. The LR PRK fuse feeds CKT 2509 (BRN) which supplies voltage to the LH rear park and turn signal lamps. On the pickup, CKT 2509 (BRN) also supplies voltage to the LH rear license plate lamps and the LH rear side marker lamps. On the utility, the LH rear park and turn signal lamps are grounded to G450 via CKT 1350 (BLK). On the pickup, the LH rear park and turn signal lamp, LH rear license plate lamps and the LH rear side marker lamps are grounded to G475 via CKT 1750 (BLK). The RR PRK fuse feeds CKT 2609 (BRN/WHT) which supplies voltage to the RH rear park and turn signal lamps. On the pickup, CKT 2609 (BRN/WHT) also supplies voltage to the RH rear license plate lamps and the RH rear side marker lamps. On the utility, the RH rear park and turn signal lamps are grounded to G450 via CKT 1350 (BLK). On the pickup, the RH rear park and turn signal lamp, RH rear license plate lamps and the RH rear side marker lamps are grounded to G422 via CKT 2250 (BLK). The TRL PRK fuse (utility only) supplies power to CKT 2109 (BRN) which feeds the LH and RH rear license plate lamps. The lamps are grounded to G402 via CKT 1650 (BLK). When the park lamp switch is in the PARK position, the daytime running lights are ON when the ambient light sensor senses daylight, and the headlights will be ON when the ambient light sensor senses darkness.