Fog/Driving Lamp: Description and Operation

System Description

OUTLINE
Power is supplied at all times
- to headlamp LH relay terminals 1 and 3
- through 15 A fuse (No.68, located in the fuse and fusible link box) (without xenon headlamp), or
- to headlamp LH relay terminals 1 and 6
- through 20 A fuse (No.54, located in the fuse and fusible link box) (with xenon headlamp), and
- to smart entrance control unit terminal 49
- through 10 A fuse [No.13, located in the fuse block (J/B)], and
- to front fog lamp relay terminal 3
- through 15 A fuse (No.6, located in the fuse and fusible link box).

When ignition switch is in ON or START position, power is supplied
- to smart entrance control unit terminal 27
- through 10 A fuse [No.10, located in the fuse block (J/B)].

When the ignition switch is in the ACC or ON position, power is supplied
- to smart entrance control unit terminal 26
- through 10 A fuse [No.1, located in the fuse block (J/B)].

Ground is supplied to smart entrance control unit terminals 43 and 64.

When lighting switch is in 2ND position, ground is supplied
- to headlamp LH relay terminal 2 from smart entrance control unit terminal 21.
- through smart entrance control unit terminal 22, and
- through lighting switch, and body grounds E11, E22 and E53.

Headlamp LH relay is then energized.

FOG LAMP OPERATION
The fog lamp switch is built into the combination switch. The lighting switch must be in the 2ND position and LOW ("B") position for fog lamp operation.

With the fog lamp switch in the ON position, ground is supplied
- to fog lamp relay terminal 2
- through the fog lamp switch, lighting switch and body grounds E11, E22 and E53.

The fog lamp relay is energized and power is supplied
- from fog lamp relay terminal 5
- to terminal 1 of each fog lamp.

Ground is supplied to terminal 2 of each fog lamp through body grounds E11, E22 and E53.
With power and ground supplied, the fog lamps illuminate.

BATTERY SAVER CONTROL
Fog lamps will remain on for a short while after the ignition switch is turned ON (or START) from OFF (or ACC). Continuity between terminals 21 and 22 of smart entrance control unit will be disturbed after 45 seconds, then the headlamps will be turned off.

Then fog lamps are turned to off.

Fog lamps are turned off when driver or passenger side door is opened even if 45 seconds have not passed after the ignition switch is turned from ON (or START) to OFF (or ACC) positions while fog lamps are illuminated.

When the lighting switch is turned from OFF to 2ND after fog lamps are turned off by the battery saver control, ground is supplied
- to smart entrance control unit terminals 20 and 58 from lighting switch terminal 11, and then
- to headlamp LH relay terminal 2 from smart entrance control unit terminal 21
- through smart entrance control unit terminal 22 from lighting switch terminal 12.

Then the fog lamps illuminate again.