Tail Lamp: Description and Operation

PARKING, LICENSE AND TAIL LAMPS

System Description
The parking, license and tail lamp operation is controlled by the lighting switch which is built into the combination switch and smart entrance control unit. The battery saver system is controlled by the smart entrance control unit.

Power is supplied at all times
- to tail lamp relay terminals 1 and 3
- through 10 A fuse (No. 61, 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)].

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
- through body grounds M77 and M111.

LIGHTING OPERATION BY LIGHTING SWITCH
When lighting switch is in 1ST (or 2ND) position, ground is supplied
- to tail lamp relay terminal 2 from smart entrance control unit terminals 19 and 57
- through smart entrance control unit terminals 20 and 58, and
- through lighting switch and body grounds E13 and E41.

Tail lamp relay is then energized and the parking, license and tail lamps illuminate.

LIGHTING OPERATION BY AUTO LIGHT CONTROL SYSTEM
When lighting switch is in AUTO position, ground is supplied
- to tail lamp relay terminal 2 from smart entrance control unit terminals 19 and 57
- through smart entrance control unit terminals 43 and 64, and
- to body grounds M77 and M111.

Tail lamp relay is then energized and the parking, license and tail lamps illuminate.

EXTERIOR LAMP BATTERY SAVER CONTROL

Except for Auto Light Control Operation
Parking, license and tail lamps will remain on for a short while after the ignition switch is turned from ON (or ACC) to OFF.

Continuity between terminals 19 and 20, and between terminals 57 and 58 of smart entrance control unit will be disturbed after 5 minutes, then the parking, license and tail lamps will be turned off.

When the lighting switch is turned from OFF to 2ND after parking, license and tail lamps are turned to 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 tail lamp relay relays terminal 2 from smart entrance control unit terminals 19 and 57, Then parking, license and tail lamps illuminate again.

Auto light control operation
While the parking, license and tail lamps are turned ON by "AUTO" operation, the exterior lamp battery saver is activated for 5 minutes when the ignition switch is turned from ON (or ACC) to OFF, and either LH or RH front door switch is opened.

The smart entrance control unit controls exterior lamp battery saver activation as follows:
- When the door switch signal changes from ON to OFF while the exterior lamp battery saver is activated, the operation is discontinued, restarts and lasts for 45 seconds, then the parking, license and tail lamps will be turned off.
- When the door switch signal changes from OFF to ON while the exterior lamp battery saver is activated, the operation is discontinued, restarts and lasts for 45 seconds, then the parking, license and tail lamps will be turned off.
- When the one of four door switch signals changes from OFF to ON while the exterior lamp battery saver is activated, the operation is discontinued, restarts and lasts for 5 minutes seconds, then the parking, license and tail lamps will be turned off.
- When all the door switch ON signals are input while the exterior lamp battery saver is activated, the operation is discontinued, restarts and lasts for 45 seconds, then the parking, license and tail lamps will be turned off.
Exterior battery saver control time can be changed using "WORK SUPPORT" mode in "HEADLAMP".

When the lighting switch is turned from OFF to 2ND after parking, license and tail lamps are turned to 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 tail lamp relays terminal 2 from smart entrance control unit terminals 19 and 57, Then parking, license and tail lamps illuminate again.