Fog/Driving Lamp: Description and Operation

System Description

OUTLINE
Power is supplied at all times
- to headlamp RH relay terminals 1 and 3
- through 15 A fuse (No. 59, located in the fuse and fusible link box), and
- to smart entrance control unit terminal 49
- through 7.5 A fuse [No. 24, located in the fuse block (J/B)], and
- to front fog lamp relay terminal 3
- through 15 A fuse (No. 53, 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 7.5 A fuse [No. 11, 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. 10, 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 RH relay terminal 2 from smart entrance control unit terminals 21 and 59.
- through smart entrance control unit terminals 22 and 60,
- through lighting switch terminal 12, and
- through body grounds E13 and E41.

Headlamp RH relay is then energized.

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

With the front fog lamp switch in the ON position, ground is supplied
- to front fog lamp relay terminal 1
- through the front fog lamp switch, lighting switch and body grounds E13 and E41.

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

Ground is supplied to terminal 2 of each front fog lamp through body grounds E13 and E41. With power and ground supplied, the front fog lamps illuminate.

EXTERIOR LAMP BATTERY SAVER CONTROL
Front fog lamps will remain on for a short while after the ignition switch is turned from ON (or ACC) to OFF. Continuity between terminals 21 and 22, and between terminals 59 and 60 of smart entrance control unit will be disturbed after 5 minutes, then the front fog lamps will be turned off.

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

Then the front fog lamps illuminate again.

NOTE: For Trouble Diagnosis for exterior lamp battery saver control, refer to "HEADLAMP (FOR USA) -XENON TYPE -".