System Description (For USA)

The headlamps are controlled by the lighting switch which is built into the combination switch. Power is supplied at all times:
^ to lighting switch terminal (5)
^ through 15 A fuse (No. (39) located in the fusible link and fuse box), and
^ to lighting switch terminal (8)
^ through 15 A fuse (No. (40) located in the fusible link and fuse box).

Low beam operation
When the lighting switch is turned to the 2ND position and placed in LOW ("B") position, power is supplied:
^ from lighting switch terminal (10)
^ to terminal (2) of the LH headlamp, and
^ from lighting switch terminal (7)
^ to terminal (2) of the RH headlamp.
Terminal (3) of each headlamp supplies ground through body grounds (E13) and (E25). With power and ground supplied, the headlamp(s) will illuminate.

High beam operation/flash-to-pass operation
When the lighting switch is placed in the 2ND position and placed in HIGH ("A") or Pass "C" position, power is supplied:
^ from lighting switch terminal (6)
^ to terminal (1) of the RH headlamp, and
^ from lighting switch terminal (9)
^ to terminal (1) of the LH headlamp, and
^ to combination meter terminal 13 (12) for the HI BEAM indicator.
Ground is supplied to terminal 18 (11) of the combination meter through body grounds (M43), (M44), and (M60)
With power and ground supplied, the high beams and the HI BEAM indicator illuminate.

Theft warning system
The theft warning system will flash the high beams if the system is triggered.
Terminal numbers in () are for models without tachometer.