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Marker Lamp: Description and Operation
PARK, TAIL AND MARKER LAMPSThe park, tail and marker lamps, including the license lamps, are turned on when the headlamp switch is placed in the PARK or HEAD position. The headlamp and panel dimmer switch supplies a ground signal to the BCM on the park lamps switch on signal circuit. The underhood fuse block supplies battery positive voltage to both the park lamp relay switch contacts and the park lamp coil circuit. The body control module (BCM) provides a ground or control circuit to the park lamp relay coil circuit. When the park lamps are turned on the BCM energizes the park lamp relay. Current flow is from the park lamp relay to these fuses in the body fuse block:
- FR PARK
- LR PARK
- RR PARK
- TRLR PARK
- UPFTR PRK
The front park and marker lamps are grounded at G100 and G101. The rear park and license lamps are grounded at G401 and 402.