System Description

ILLUMINATION

System Description
Control of the illumination lamps operation is dependent upon the position of the lighting switch (combination switch). When the lighting switch is placed in the 1ST or 2ND position (or if the auto light system is activated) the BCM receives input requesting the illumination 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 illumination 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.

ILLUMINATION 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 illumination 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, which, when energized, directs power
- through terminal 37 of the IPDM E/R
- to combination meter terminal 32,
- to AV and NAVI control unit terminal 9
- to AV and NAVI switch terminal 2,
- to VDC off switch terminal 3
- to A/T illumination terminal 1,
- to hazard switch terminal 7,
- to cigarette lighter illumination terminal 3
- to ashtray terminal 1,
- to display and A/C auto amplifier terminal 28,
- to A/C control panel terminal 9
- to clock terminal 4,
- to heated seat switch driver side terminal 5,
- to heated seat switch passenger side terminal 5,
- to illumination control switch terminal 1,
- to center box lamp terminal 1,
- to glove box lamp terminal 1, and
- to audio unit terminal 8.

Ground is supplied at all times
- to display and A/C auto amplifier terminal 24,
- to illumination control switch terminal 3,
- to center box lamp terminal 2,
- to glove box lamp terminal 2
- through body grounds M30 and M66.

With power and ground supplied, illumination lamps illuminate.

EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 1ST or 2ND position (or if auto light system is activated), and the ignition switch is turned from ON or ACC to OFF, the battery saver control feature is activated. Under this condition, the illumination lamps remain illuminated for 5 minutes, then the illumination lamps are turned off.

When the lighting switch is turned from OFF to 1ST or 2ND position (or if auto light system is activated) after illumination lamps are turned off by the battery saver control, and illumination lamps illuminate again.

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