Circuit Operation - Exterior Lights
Turn LampsWith the ignition switch in "RUN," "BULB TEST" or "START," voltage is applied from I/P Fuse Block Fuse 1B, through the turn flasher to the normally closed switch in the turn/hazard switch.
With the turn switch in LEFT turn position, voltage is applied through the turn switch and 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 go on immediately. They begin to flash when the current heats up the timing element in the flasher, and the flasher repeatedly opens and closes the circuit. A similar procedure is followed when the turn switch is in the RIGHT turn position.
Hazard Lamps
Voltage is applied at all times from the I/P Fuse Block Fuse 6B, through the hazard flasher to the normally open switch in the turn/hazard switch. With the hazard switch in HAZARD, voltage is applied through the 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 lamps.
EXTERIOR LAMPS
Stoplamps
Voltage is applied at all times from I/P Fuse Block Fuse 6B 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 stoplamps causing the stop lamps to light.
Tail/Rear Marker/License Lamps
Voltage is applied at all times from I/P Fuse Block Fuse 6C to the head/park lamp switch. With the switch in PARK or HEAD, voltage is applied to the tail, rear side marker, and license lamps.
Front Park And Front Side Marker Lamps
Voltage is applied from I/P Fuse Block Fuse 6C to the head/park lamp switch at all times. With the switch in PARK or HEAD, voltage is applied to the LH and RH front side marker lamps and to the LH and RH front park lamps.
Adaptive Lamp Monitor Module
The adaptive lamp monitor module is adaptive because it may be used in vehicles with various lighting configurations. This module recognizes and adapts to a particular lighting configuration when the ignition switch is in "RUN" and the park lamps turned on. This module must relearn the vehicle lighting configuration in the battery is disconnected.