System Description

Control of the parking, license plate, and tail lamp operation is dependent upon the position of the lighting switch (combination switch). When the lighting switch is placed in the 1ST position, the BCM receives input requesting the parking, license plate, side marker and tail lamps to illuminate. This input is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The central processing unit of the IPDM E/R controls the tail lamp relay coil. This relay, when energized, directs power to the parking, license plate, side marker and tail lamps, which then illuminate.

Power is supplied at all times
- to tail lamp relay, located in the IPDM E/R (intelligent power distribution module engine room)
- through 10 A fuse [No.75, located in the IPDM E/R (intelligent power distribution module engine room)].

Power is also supplied at all times
- to BCM (body control module) terminal 7
- through 50 A fusible link (letter F, located in the fuse and fusible link box).

With the ignition switch in the ON or START position, power is supplied
- to BCM (body control module) terminal 35
- through 10 A fuse [No.1, located in the fuse block (J/B)].

With the ignition switch in the ACC or ON position, power is supplied
- to BCM (body control module) terminal 36
- through 10 A fuse [No.6, located in the fuse block (J/B)].

Ground is supplied
- to BCM (body control module) terminals 8
- through body grounds E17, and E43.

OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1st or 2nd position (or if the auto light system is activated), the BCM (body control module) receives input requesting the parking, license plate, side marker and tail lamps to illuminate. This input is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The CPU (central processing unit) in the IPDM E/R controls the tail lamp relay coil, which when energized, directs power
- through terminal 37 of the IPDM E/R
- to front combination lamp LH terminal 7,
- to front combination lamp RH terminal 7,
- to front side marker lamp LH terminal 1,
- to front side marker lamp RH terminal 1,
- to rear combination lamp LH terminal 1,
- to rear combination lamp RH terminal 1
- to license plate lamp terminal 1,

Ground is supplied at all times
- to front combination lamp LH terminal 4,
- through body grounds E17 and E43, and
- to front combination lamp RH terminal 4
- through body grounds E17 and E43, and
- to front side marker lamp LH terminal 2,
- through body grounds E17 and E43, and
- to front side marker lamp RH terminal 2,
- through body grounds E17 and E43, and
- to rear combination lamp LH terminal 4
- through body grounds B103, and
- to rear combination lamp RH terminal 4
- through body grounds B103, and
- to license plate lamp terminal 2,
- through body grounds B5 and B29.

With power and ground supplied, the parking, license side marker and tail lamps illuminate.

COMBINATION SWITCH READING FUNCTION
Refer to "Combination Switch Reading Function". Combination Switch Reading Function

EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 1ST (or 2ND) position, and the ignition switch is turned from ON or ACC to OFF, the battery saver control feature is activated.

Under this condition, the parking, license plate, side marker and tail lamps remain illuminated for 5 minutes, then the parking, license plate, side marker and tail lamps are turned off.

Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.