For USA

The headlamp operation is controlled by the lighting switch which is built into the combination switch and headlamp battery saver control unit. And the headlamp battery saver system is controlled by the headlamp battery saver control unit and smart entrance control unit.

OUTLINE
Power is supplied at all times
- to headlamp LH relay terminals 1 and 5
- through 10 A fuse (No.68, located in the fuse and fusible link box), and
- to headlamp RH relay terminals 1 and 5
- through 10 A fuse (No.69, located in the fuse and fusible link box), and
- to headlamp battery saver control unit terminal 7
- through 10 A fuse [No.12, located in the fuse block (J/B)].
When the ignition switch is in the ON or START position, power is supplied
- to headlamp battery saver control unit terminal 1
- through 10 A fuse [No.30, located in the fuse block (J/B)], and
- to headlamp battery saver control unit terminal 10, and
- to smart entrance control unit terminal 33
- through 10 A fuse [No.10, located in the fuse block (J/B)].
Ground is supplied
- to headlamp battery saver control unit terminals 4 and 11
- through body grounds M9, M25 and M87.

When Ignition Switch is in ON or START Position
Ground is supplied
- to headlamp LH relay terminal 2 from headlamp battery saver control unit terminal 2
- through headlamp battery saver control unit terminal 3,
- to lighting switch terminal 12, and
- to headlamp RH relay terminal 2 from headlamp battery saver control unit terminal 8
- through headlamp battery saver control unit terminal 9, and
- to lighting switch terminal 12.
Headlamp relays (LH and RH) are then energized.

When Ignition Switch is in OFF or ACC Position
When lighting switch is in 2ND (or 1ST) position, ground is supplied
- to headlamp battery saver control unit terminals 5 and 13
- from lighting switch terminal ii.
And then, ground is also supplied to headlamp LH and RH relays terminal 2 from headlamp battery saver control unit. Headlamp relays (LH and RH) are then energized.

LOW BEAM OPERATION
When the lighting switch is turned to the 2ND position and placed in LOW ("B") position, power is supplied
- from terminal 3 of each headlamp relay
- to terminal 3 of each headlamp
Ground is supplied
- to headlamp LH terminal 2
- through lighting switch terminals 7 and 5
- through body grounds E11, E22 and E53, and
- to headlamp RH terminal 2
- through lighting switch terminal 10 and 8
- through body grounds E11, E22 and E53.
With power and ground supplied, the headlamp(s) will illuminate.

HIGH BEAM OPERATION / FLASH-TO-PASS OPERATION
When the lighting switch is turned to the 2ND position and placed in HIGH ("A") position or PASS ("C") position, power is supplied
- from terminal 3 of each headlamp relay
- to terminal 3 of each headlamp, and
- to combination meter terminal 26 for the HIGH BEAM indicator.
Ground is supplied
- to headlamp LH terminal 1
- through lighting switch terminals 6 and 5
- through body grounds E11, E22 and E53, and
- to headlamp RH terminal 1
- to combination meter terminal 27 for the HIGH BEAM indicator
- through lighting switch terminals 9 and 8
- through body grounds E11, E22 and E53.
With power and ground supplied, the high beams and the high beam indicator illuminate.

BATTERY SAVER CONTROL
When the ignition switch is turned from ON (or START) to OFF (or ACC) positions while headlamps illuminate, the RAP signal is supplied to terminal 10 of the headlamp battery saver control unit from smart entrance control unit terminal 5.
After counting 45 seconds by the RAP signal from the smart entrance control unit to headlamp battery saver control unit, the ground supply to terminal 2 of the headlamp LH and RH relay from headlamp battery saver control unit terminals 2 and 8 is terminated.
Then the headlamps are turned off.
The headlamps are turned off when driver or passenger side door is opened even if 45 seconds have not passed after ignition switch is turned from ON (or START) to OFF (or ACC) positions while headlamps are illuminated.
When the lighting switch is turned from OFF to 2ND after headlamps are turned to off by the battery saver control, ground is supplied
- to headlamp battery saver control unit terminals 5 and 13 from lighting switch terminal ii, and
- to headlamp LH and RH relays terminal 2 from headlamp battery saver control unit terminals 2 and 8. Then headlamps illuminate again.

AUTO LIGHT OPERATION
The auto light control unit has an optical sensor inside it that detects outside brightness.
When lighting switch is in "AUTO" position, ground is supplied
- to auto light control unit terminal 10
- from lighting switch terminal 42.
When ignition switch is turn to "ON" or "START' position and
- Outside brightness is darker than prescribed level or
- After 20 seconds delay, outside brightness becomes darker than prescribed level
Ground is supplied
- to headlamp relay LH and RH terminals 2
- through battery saver control unit
- from auto light control unit terminal 6, and
- to tail lamp relay terminal 2
- through battery saver control unit
- from auto light control unit terminal 7.
Then both headlamp relays and tail lamp relay are energized, headlamps (low or high) and tail lamps are illuminate according to switch position.
Auto light operation allows headlamps and tail lamps to go off when
- Ignition switch is turned to "OFF" position or
- Outside brightness is brighter than prescribed level or
- After 20 seconds delay, outside brightness becomes brighter than the prescribed level.
For parking license and tail lamp auto operation, refer to "PARKING, LICENSE AND TAIL LAMPS".

THEFT WARNING SYSTEM
The theft warning system will flash the high beams if the system is triggered. Refer to "THEFT WARNING SYSTEM".