Tail Lamp: Description and Operation

PARKING, LICENSE PLATE AND TAIL LAMPS

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 (body control module) receives input signal requesting the parking, license plate, and tail lamps to illuminate. This input signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The CPU (central processing unit) of the IPDM E/R controls the tail lamp relay coil. When energized, this relay directs power to the parking, license plate, and tail lamps, which then illuminate.

Power is supplied at all times
- through 10 A fuse (No. 41, located in the IPDM E/R)
- to tail lamp relay, located in the IPDM E/R, and
- through 50 A fusible link (letter f , located in the fuse and fusible link box)
- to BCM terminal 70.

With the ignition switch in the ON or START position, power is supplied
- through 10 A fuse [No. 1, located in the fuse block (J/B)]
- to BCM terminal 38.

With the ignition switch in the ACC or ON position, power is supplied
- through 10 A fuse [No. 6, located in the fuse block (J/B)]
- to BCM terminal 11.

Ground is supplied
- to BCM terminal 67
- through grounds F14, M57 and M61.

OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1st or 2nd position (or if the auto light system is activated), the BCM receives input signal requesting the parking, license plate, and tail lamps to illuminate. This input signal is communicated to the IPDM E/R across the CAN communication lines. The CPU of the IPDM E/R controls the tail lamp relay coil. When energized, this relay directs power
- through terminal 22 of the IPDM E/R
- to front combination lamp LH terminal 1
- to front combination lamp RH terminal 1
- to rear combination lamp LH terminal 2
- to rear combination lamp RH terminal 2
- to license lamp LH terminal +
- to license lamp RH terminal +.

Ground is supplied
- to front combination lamp LH terminal 2
- to front combination lamp RH terminal 2
- through grounds E15 and E24, and
- to rear combination lamp LH terminal 5
- to rear combination lamp RH terminal 5
- to license lamp LH terminal -
- to license lamp RH terminal -
- through grounds B7 and B19.

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

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, and tail lamps remain illuminated for 5 minutes, unless the combination switch (lighting switch) position is changed. If the combination switch (lighting switch) position is changed, then the parking, license plate and tail lamps are turned off.

CAN Communication System Description
Refer to "INFORMATION BUS".