Marker Lamp: Description and Operation

PARK, TAIL AND MARKER LAMPS

The park lamps, including the license lamps, are turned on when the headlamp switch is placed in the PARK or ON position or anytime the headlights are requested. The rear fuse block supplies battery positive voltage to the switch contacts of the park lamp relay. When the headlamp switch is in PARK or in ON, the signal circuit of the park lamp switch of the DIM has a ground path. The DIM provides battery positive voltage to the control circuit of the park lamp relay. When the park lamps and/or the tail lamps are ON, the DIM energizes the park lamp relay control circuit. This closes the switch. contacts. Current flows from the park lamp relay to the left park lamp fuse and to the right park lamp fuse. The current flows to the LH PARK LP and the RH PARK LP fuses. From the fuse, the current flows to the park lamps. The left park lamps are grounded at G103, at 401, and at G402. The right park lamps and the right tail lamps are grounded at G103, and at G401. The DIMR fuse supplies battery positive voltage to the license lamps and to the DIM park lamp input, for interior lamps dimming. The license lamps are grounded at G101.