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 signal requesting the illumination 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 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).
- to CPU (central processing unit) in the IPDM E/R (intelligent power distribution module engine room)
- through 15 A fuse [No. 73, located in the IPDM E/R (intelligent power distribution module engine room)].

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)].
- to CPU (central processing unit) in the IPDM E/R (intelligent power distribution module engine room)
- through 10 A fuse [No. 80, located in the IPDM E/R (intelligent power distribution module engine room)]

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) terminal 8
- through grounds E17, and E43.
- to IPDM E/R (intelligent power distribution module engine room) terminals 14, and 45
- through 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 signal requesting the illumination 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 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 NAVI control unit terminal 9 (with navigation system),
- to NAVI switch terminal 2 (with navigation system),
- to display and A/C auto amp terminal 28,
- to A/C and audio controller terminal 9,
- to audio unit terminal 8,
- to clock (illumination) terminal 4
- to VDC off switch (illumination) terminal 3,
- to A/T illumination terminal 1(with A/T),
- to hazard switch (illumination) terminal 7
- to cigarette lighter illumination terminal 3
- to heated seat switch (driver side) (illumination) terminal 5 (with A/T with heated seat),
- to heated seat switch (passenger side) (illumination) terminal 5 (with A/T with heated seat),
- to heated seat switch (driver side) (illumination) terminal 5 (with M/T),
- to heated seat switch (passenger side) (illumination) terminal 5 (with M/T),
- to illumination control switch terminal 1,
- to ashtray terminal 1 (with M/T),
- to ashtray terminal 1 (with A/T),
- to upper glove box lamp terminal 1 (without navigation system), and
- to glove box lamp terminal 1.

Illumination control
- through terminal 31 of combination meter
- to NAVI switch terminal 3 (with navigation system),
- to display and A/C auto amp terminal 36,
- to A/C and audio controller terminal 10,
- to clock (illumination) terminal 3,
- to VDC off switch (illumination) terminal 4,
- to A/T illumination terminal 2 (with A/T),
- to hazard switch (illumination) terminal 8 to cigarette lighter illumination terminal 4,
- to heated seat switch (driver side) (illumination) terminal 6 (with A/T with heated seat),
- to heated seat switch (passenger side) (illumination) terminal 6 (with A/T with heated seat),
- to heated seat switch (driver side) (illumination) terminal 6 (with M/T with heated seat),
- to heated seat switch (passenger side) (illumination) terminal 6 (with M/T with heated seat), and
- to illumination control switch terminal 2.

Ground is supplied at all times
- to display and A/C auto amp terminal 24,
- to ashtray terminal 2 (with M/T),
- to ashtray terminal 2 (with A/T),
- to upper glove box lamp terminal 2 (without navigation system), and
- to glove box lamp terminal 2
- through 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 function 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.