Circuit Operation - Exterior Lights

TURN LAMPS
With the ignition switch in RUN or START, voltage is applied through I/P Fuse Block TURN LAMPS Fuse and the turn flasher to each turn switch in the turn/hazard switch assembly. With the turn switch in the LH TURN position, voltage is applied through the turn/hazard switch assembly through two paths to the lamps. One path is through the LH front park/turn lamps and the side marker lamps. The second path is applied through the LH tail/stop/turn lamps. The lamps turn on immediately. They begin to flash when the current heats up the timing element in the turn flasher, and the flasher repeatedly opens and closes the circuit. A similar procedure is followed when the turn switch is in the RH TURN position.

HAZARD LAMPS
Voltage is applied at all times through RH Rear Power Distribution Center Fuse Block #1 HAZD/STOP LPS Fuse and the hazard flasher to the normally open switch in the turn/hazard switch assembly. With the hazard switch in HAZARD, voltage is applied through the turn/hazard switch assembly to all four paths used by both front and rear turn lamps. All turn lamps and both indicators flash on and off. In the HAZARD position, the turn circuit is always open, and the hazard flasher controls the flashing of the lamps.

STOP LAMPS
Voltage is applied at all times through RH Rear Power Distribution Center Fuse Block #1 HAZD/STOP LPS Fuse to the cruise/shift interlock brake switch. When the brake pedal is depressed, voltage is applied through the cruise/shift interlock brake switch to the tail/turn/stop lamps and the Center High Mounted Stop Lamps (CHMSL) causing all stop lamps to light.

PARK/TAIL/MARKER/LICENSE LAMPS
Voltage is applied at all times through RH Rear Power Distribution Center Fuse Block #1 PARK LP Fuse to the Lamp Control Module (LCM). With the headlamp switch in PARK or HEAD, voltage is applied from the LCM through I/P Fuse Block LH PARK LAMPS Fuse and RH PARK LAMPS Fuse to the park/turn, tail/stop/turn, side marker, and license lamps causing them to light.

CORNERING LAMPS
With the head/park lamps on, voltage is applied to each turn switch in the turn/hazard switch assembly. The LH cornering lamp is permanently grounded to G104 and the RH cornering lamp is permanently grounded to G103. When a LH TURN or RH TURN is indicated, that switch closes and voltage is applied to the respective cornering lamp.

PERIMETER LIGHTING
For a description of Perimeter Lighting, refer to Headlamps. Headlamp