Tail Lamp: Description and Operation

Parking, License Plate And Tail Lamps Schematic:

Parking, License Plate And Tail Lamps Schematic

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, side marker 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. This relay, when energized, directs power to the parking, license plate and tail lamps, which then illuminate.

Power is supplied at all times
- to tail lamp relay, located in the IPDM E/R,
- through 20 A fuse (No. 53, located in the IPDM E/R)
- to CPU of the IPDM E/R,
- to ignition relay, located in the IPDM E/R, and
- through 50 A fusible link (letter g , 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
- to ignition relay, located in the IPDM E/R, and
- through 10 A fuse [No. 1, located in the fuse block (J/B)]
- to BCM terminal 38.

Ground is supplied
- to BCM terminal 67
- through grounds M57, M61 and M79, and
- to IPDM E/R terminals 38 and 59
- through grounds E9, E15 and E24.

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, side marker 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, which when energized, directs power
- through 10 A fuse (No. 37, located in the IPDM E/R)
- through IPDM E/R terminal 57
- to license plate lamp terminal 1
- to rear combination lamp LH and RH terminal 1,
- through 10 A fuse (No. 36, located in the IPDM E/R)
- through IPDM E/R terminal 28
- to front combination lamp LH (side marker) terminal 7
- to front combination lamp LH (parking) terminal 4, and
- through IPDM E/R terminal 49
- to front combination lamp RH (side marker) terminal 7
- to front combination lamp RH (parking) terminal 4.

Ground is supplied
- to front combination lamp LH and RH (side marker) terminal 8
- to front combination lamp LH and RH (parking) terminal 5
- to license plate lamp terminal 2
- through grounds E9, E15 and E24,
- to rear combination lamp LH terminal 5
- through ground B85, and
- to rear combination lamp RH terminal 5
- through ground B160.

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

COMBINATION SWITCH READING FUNCTION
Refer to LT-63, "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, side marker, license and tail lamps remain illuminated for 5 minutes, then the parking, side marker, license plate and tail lamps are turned off. Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.

CAN Communication System Description
Refer to LAN-4, "Information Bus". Information Bus