Tail Lamp: Description and Operation

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. 60, located in the fuse and fusible link box), and
- to smart entrance control unit terminal 49
- through 10 A fuse [No. 13, 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 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
- through body grounds M9, M25 and M87.

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 E11, E22 and E53.
- to stop and tail lamp unit terminal 6
- through body grounds T6 and T8.

Tail lamp relay is energized and power is supplied
- to stop and tail lamp unit terminal 4
- through tail lamp relay terminal 5
- to each rear combination lamp terminals 1
- through stop and tail lamp unit terminal 3. When the tail lamp illuminates, ground is supplied
- through body grounds T6 and T8
- to each rear combination lamp terminal 6.

Tail lamp relay is then energized and the parking, license, side marker 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 M9, M25 and M87.
Tail lamp relay is then energized and the parking, license, side marker and tail lamps illuminate.

EXTERIOR LAMP BATTERY SAVER CONTROL
While parking, license, side maker and tail lamps are turned ON by "1ST" or "2ND" of lighting switch, the 5 minutes timer is activated when the ignition switch is turned from ON (or START) to OFF (ACC 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 headlamps will be turned off.

Then the parking, license, side marker and tail lamps are turned off.

While the headlamp is turned ON by "AUTO" of lighting switch, the 5 minute timer is activated when the ignition switch signal changes from ON (or START) to OFF (ACC OFF), and either one of LH or RH front door switch ON signal is input.
The auto light delay off timer is activated as the following:
- When the door switch signal changes from ON to OFF while the timer is activated, the timer in operation is discontinued and the 45 second timer is reset.
- When the door switch signal changes from OFF to ON while the timer is activated, the timer is discontinued and the 45 second timer is reset.
- When the one of four door switch signals changes from OFF to ON while the timer is activated, the timer is discontinued and the 5 minute timer is reset.
- When all the door switch ON signals are input while the timer is activated, the timer is discontinued and the 45 second timer is reset.

Exterior lamp battery saver control mode and auto light delay off timer period can be changed by the function setting of CONSULT-II. Manufacturers Scan Tool (Nissan Consult-II)

When the lighting switch is turned from OFF to 1ST (or 2ND) after the parking, license, side marker and tail 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
- to tail lamp relay terminal 2 from smart entrance control unit terminals 19 and 57.

Then the parking, license, side marker and tail lamps illuminate again.