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HEADLIGHTS (CANADA)
CURRENT FROM THE BATTERY IS ALWAYS FLOWING FROM FL ALT → TAILLIGHT RELAY (COIL SIDE) → TERMINAL 3 OF RUNNING
LIGHT CONTROL RELAY, FL MAIN → HEADLIGHT RELAY (COIL SIDE) → TERMINAL 5 OF RUNNING LIGHT CONTROL RELAY, AND FL
ALT → ECU–B FUSE → TERMINAL 12 OF RUNNING LIGHT CONTROL RELAY.
WHEN THE IGNITION SW IS TURNED ON, THE CURRENT FLOWING THROUGH THE GAUGE FUSE FLOWS TO TERMINAL 1 OF THE
RUNNING LIGHT CONTROL RELAY.
1. DAYTIME RUNNING LIGHT OPERATION
WHEN THE ENGINE IS STARTED, VOLTAGE IS PRODUCED AT TERMINAL L OF THE ALTERNATOR AND WHEN VOLTAGE IS APPLIED
TO TERMINAL 8 OF THE RUNNING LIGHT CONTROL RELAY, THE RUNNING LIGHT CONTROL RELAY OPERATES AND CURRENT
FLOWS FROM THE TAILLIGHT RELAY (POINT SIDE) → TAIL FUSE → TAIL, LICENSE, SIDE MARKER AND FRONT CLEARANCE LIGHTS
→ GROUND, AND FROM HEADLIGHT RELAY (POINT SIDE) → TERMINAL 1 OF DIMMER RELAY → TERMINAL 4 HEAD FUSES (LOW
SIDE) → HEADLIGHTS → GROUND.
ACCORDINGLY, EVEN IF THE LIGHT CONTROL SW IS IN OFF POSITION, EACH LIGHT MENTIONED HERE LIGHTS UP. THIS SYSTEM
OPERATES UNTIL THE IGNITION SW IS TURNED OFF.
2. TAILLIGHT OPERATION
WHEN THE LIGHT CONTROL SW IS TURNED TO THE TAILLIGHT POSITION, CURRENT FLOWING TO THE TAILLIGHT RELAY (COIL
SIDE) ALWAYS FLOWS TO TERMINAL 3 OF RUNNING LIGHT CONTROL RELAY → TERMINAL 2 → TERMINAL 2 OF INTEGRATION
RELAY → TERMINAL 1 → TERMINAL 2 OF LIGHT CONTROL SW (COMB. SW) → TERMINAL 11 → GROUND, TURNING THE TAILLIGHT
RELAY ON.
THIS CAUSES THE CURRENT FLOWING TO THE TAILLIGHT RELAY (POINT SIDE) TO FLOW FROM THE TAILLIGHT RELAY → TAIL FUSE
→ TAIL, LICENSE, SIDE MARKER AND FRONT CLEARANCE LIGHTS → GROUND, CAUSING THE TAILLIGHTS TO LIGHT UP.
AT THIS TIME, THE CURRENT FLOWING TO THE ECU–B FUSE FLOWS FROM TERMINAL 12 OF THE RUNNING LIGHT CONTROL
RELAY TO TERMINAL 7, PROVIDING POWER FOR ILLUMINATION OF THE CLOCK.
3. HEADLIGHT OPERATION
WHEN THE LIGHT CONTROL SW IS TURNED TO HEADLIGHT POSITION AND THE DIMMER SW TO LOW SIDE, THE CURRENT
FLOWING TO THE HEADLIGHT RELAY (COIL SIDE) FLOWS TO TERMINAL 5 OF THE RUNNING LIGHT CONTROL RELAY → TERMINAL 4
→ TERMINAL 3 OF INTEGRATION RELAY → TERMINAL 4 → TERMINAL 13 OF LIGHT CONTROL SW (COMB. SW) → TERMINAL 11 →
GROUND, TURNING THE HEADLIGHT RELAY ON.
THIS CAUSES THE CURRENT FLOWING TO THE HEADLIGHT RELAY (POINT SIDE) TO FLOW FROM THE HEADLIGHT RELAY →
TERMINAL 1 OF DIMMER RELAY TERMINAL 4 → HEAD LH (LO), RH (LO) FUSE → HEADLIGHTS (LOW) → GROUND, SO THE
HEADLIGHTS (LOW) LIGHT UP.
WHEN THE DIMMER SW IS SWITCHED TO THE HIGH SIDE, CURRENT FLOWS FROM TERMINAL 1 OF DIMMER RELAY → TERMINAL 3
→ TERMINAL 14 OF RUNNING LIGHT CONTROL RELAY → TERMINAL 13 → TERMINAL 12 OF DIMMER SW → TERMINAL 9 → GROUND,
TURNING THE DIMMER RELAY ON.
THIS CAUSES THE CURRENT FLOWING TO TERMINAL 1 OF THE DIMMER RELAY TO FLOW FROM TERMINAL 2 OF DIMMER RELAY →
HEAD LH (HI), RH (HI) HEADLIGHTS (HIGH) → GROUND, CAUSING THE HEADLIGHTS (HIGH) TO LIGHT UP.
WHEN THE DIMMER SW IS TURNED TO FLASH POSITION, CURRENT FLOWS FROM TERMINAL 5 AND 14 OF THE RUNNING LIGHT
CONTROL RELAY → TERMINAL 6 → TERMINAL 14 OF DIMMER SW (COMB. SW) → TERMINAL 9 → GROUND, SO THAT THE
HEADLIGHT RELAY AND DIMMER RELAY ARE ACTIVATED IN THAT ORDER AND THE HEADLIGHTS CHANGE TO FLASHING MODE.
WHEN THE HEADLIGHTS ARE LIGHTED UP (WITH THE EXCEPTION OF FLASHING MODE), THE TAILLIGHTS ARE LIGHTED UP AS
DESCRIBED IN PART 2 EARLIER.
TAILLIGHT RELAY
2–4 : CLOSED WITH LIGHT CONTROL SW AT TAIL OR HEAD POSITION
CLOSED WITH ENGINE RUNNING
HEADLIGHT RELAY
4–5 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION OR DIMMER SW AT FLASH POSITION
CLOSED WITH ENGINE RUNNING
DIMMER RELAY
CHANGED FROM HEAD (LO) TO HEAD (HI) WITH DIMMER SW AT FLASH POSITION OR WITH HEADLIGHT RELAY ON AND
DIMMER SW AT HIGH POSITION
SYSTEM OUTLINE
SERVICE HINTS