System Description (For USA)

Power is supplied at all times
^ through 15 A fuse [No. (38), located in the fuse block (in relay box)]
^ to headlamp relay-L terminals (1) and (3)
^ through 15 A fuse [No. (37), located in the fuse block (in relay box)]
^ to headlamp relay-R terminals (1) and (3), and
^ through 10 A fuse [No. (3), located in the fuse block (J/B)]
^ to lighting switch terminal (5).
When the lighting switch is moved to the 2ND position, ground is supplied
^ to headlamp relay-L terminal (2)
^ through lighting switch terminal (3)
^ to lighting switch terminal (4)
^ through body grounds (M3) and (M90), and
^ to headlamp relay-R terminal (2)
^ through lighting switch terminal (1)
^ to lighting switch terminal (2)
^ through body grounds (M3) and (M90).
Then each headlamp relay is energized and power is supplied
^ from headlamp relay-L terminal (5)
^ to LH headlamp terminals (1) and (3), and
^ to combination meter terminal (25) for HIGH BEAM indicator, and
^ from headlamp relay-R terminal (5)
^ to RH headlamp terminals (1) and (3).

Low beam operation
When the lighting switch is moved to the 1ST or 2ND position, power is supplied
^ from lighting switch terminal (6)
^ to dimmer relay terminal (2).
With dimmer switch in the LOW ("B") position, ground is supplied
^ to dimmer relay terminal (1)
^ through dimmer switch terminal (44)
^ to dimmer switch terminal (43)
^ through body grounds (M3) and (M90).
The dimmer relay is energized and ground is supplied
^ to terminal (2) of each headlamp
^ through dimmer relay terminal (5)
^ to dimmer relay terminal (3)
^ through body grounds (E13) and (E22).
With power and ground supplied, the low beam headlamps will illuminate.

High beam operation
When the dimmer switch is placed in HIGH ("A") position, dimmer relay is not energized and ground is supplied
^ to terminal (4) of each headlamp and
^ to combination meter terminal (26)
^ through dimmer relay terminal (4)
^ to dimmer relay terminal (3)
^ through body grounds (E13) and (E22).
With power and ground supplied, the~high beam headlamps and HIGH BEAM indicator illuminate.

Flash-to-pass operation
When the dimmer switch is placed in PASS ("C") position, flash-to-pass operation is triggered regardless of the lighting switch position.
Ground is supplied
^ to headlamp relay-L terminal (2)
^ through dimmer switch terminal (8)
^ to dimmer switch terminal (9)
^ through body grounds (M3) and (M90), and
^ to headlamp relay-R terminal (2)
^ through dimmer switch terminal (5)
^ to dimmer switch terminal (6)
^ through body grounds (M3) and (M90)
Then each headlamp relay is energized and power is supplied to terminal (3) of each headlamp and terminal (25) of combination meter.
Ground is supplied to terminal (4) of each headlamp and terminal (26) of combination meter through dimmer relay and body grounds (E13) and (E22).
With power and ground supplied, the high beam headlamps and HIGH BEAM indicator will illuminate.

With theft warning system
The theft warning system will flash the high beams if the system is triggered.