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
The control of the parking, license plate and tail lamp operation is dependent upon the position of lighting 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) via the CAN communication lines. The CPU (central processing unit) located in the IPDM E/R controls the tail lamp relay coil. This relay, when energized, directs power to parking, license plate and tail lamps, which then illuminate.

Power is supplied at all times
- to ignition relay located in IPDM E/R,
- to tail lamp relay located in IPDM E/R,
- through 15 A fuse (No. 52, located in IPDM E/R) and
- through 20 A fuse (No. 53, located in IPDM E/R)
- to the CPU located in the IPDM E/R,
- through 40 A fusible link (letter g, located in fuse and fusible link block)
- to BCM terminal 70,
- through 10 A fuse [No. 8, located in fuse block (J/B)],
- to BCM terminal 57.

With the ignition switch in the ON or START position, power is supplied
- through 10 A fuse [No. 6, located in fuse block (J/B)]
- to BCM terminal 38, "to ignition relay located in IPDM E/R and
- through the ignition relay
- to the CPU of the IPDM E/R.

With the ignition switch in the ACC or ON position, power is supplied
- through 10 A fuse [No. 20, located in fuse block (J/B)]
- to BCM terminal 11.

Ground is supplied
- to BCM terminal 67
- through grounds M20 and M61,
- to IPDM E/R terminals 59 and 39
- through grounds E15 and E24.

OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position, the BCM receives an input signal requesting parking, license plate and tail lamps to illuminate. This input signal is communicated to the IPDM E/R via the CAN communication lines. The CPU, located in the IPDM E/R, controls the tail lamp relay coil. When energized, the tail lamp relay directs power
- through 10 A fuse (No. 37, located in IPDM E/R),
- through IPDM E/R terminal 26
- to front combination lamp LH terminal 6, and
- through IPDM E/R terminal 27
- to front combination lamp RH terminal 6,
- through IPDM E/R terminal 28
- to rear combination lamp LH terminal 4 and
- to license plate lamp LH and RH terminal 1,
- through IPDM E/R terminal 29
- to rear combination lamp RH terminal 4.

Ground is supplied
- to front combination lamp LH and RH terminal 7
- through grounds E15 and E24,
- to rear combination lamp LH terminal 1 and
- to license plate lamp LH and RH terminal 2
- through grounds B7 and B19, and
- to rear combination lamp RH terminal 1
- through grounds B117, B132 (all models) and D402 (with hatchback).
With power and ground supplied, parking, license plate and tail lamps illuminate.

COMBINATION SWITCH READING FUNCTION
Refer to "System Description" in Body Control Systems.

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 and tail lamps remain illuminated for 5 minutes, then the parking, license plate and tail lamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-III.

CAN Communication System Description
Refer to "Information Bus".