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System Description





INTERIOR ROOM LAMP


System Description

BCM (body control module) controls interior lamp, room lamp timer and interior lamp battery saver.
The following signals are input to BCM:
- Door lock/unlock trunk open request signal from the Intelligent Key unit via CAN communication
- Key cylinder switch status signal from power window main switch via power window serial link
- Door switch signal from door switches (driver side, passenger side, rear LH and RH)
- IGN power supply (signal) from PDU (power distribution unit)
- ACC power supply (signal) from PDU

ROOM LAMP TIMER BASIC OPERATION

Applicable lamps
- Room lamp system: map lamp, foot lamp (driver side and passenger side) and personal lamp (rear LH and rear RH).
1. When getting on the vehicle
- Lamps illuminate by timer operation when driver side door or passenger side door is unlocked.*
- Lamps illuminate by timer operation after any door is open and then all doors are closed.*
- Timer operation stops and lamps are OFF, when driver side door is locked or the push-button ignition switch (push switch) is turned to ACC or ON from OFF.
*: This setting can be changed by CONSULT-III. Consult-III Function (BCM - Int Lamp).
2. When getting off the vehicle
- Lamps illuminate by timer operation when the push-button ignition switch (push switch) is turned OFF.*
- Lamps illuminate by timer operation after any door is open and then all doors are closed.*
- Timer operation stops and lamps are OFF, when driver side door is locked.
*: This setting can be changed by CONSULT-III. Consult-III Function (BCM - Int Lamp).

POWER SUPPLY AND GROUND
Power is supplied at all times
- through 50A fusible link (letter F, located in fuse and fusible link block)
- to BCM terminal 55, � through 10A fuse [No. 21, located in fuse block (J/B)]
- to BCM (body control module) terminal 42, � through 10A fuse [No. 22, located in fuse block (J/B)]
- to key slot terminal 1.
With the ignition switch in the ON or START position, power is supplied
- through 15A fuse [No. 1, located in fuse block (J/B)]
- to BCM terminal 38.
With the ignition switch in the ACC or ON position, power is supplied
- through 10A fuse [No. 6, located in fuse block (J/B)]
- to BCM terminal 11.
Ground is supplied
- to BCM terminal 52
- through grounds M16 and M70.
When the driver side door is opened, ground is supplied
- to BCM terminal 62
- through front door switch driver side terminal 2
- through case ground of front door switch driver side.
When the passenger side door is opened, ground is supplied
- to BCM terminal 12
- through front door switch passenger side terminal 2
- through case ground of front door switch passenger side.
When the rear door LH is opened, ground is supplied
- to BCM terminal 63
- through rear door switch LH terminal 2
- through case ground of rear door switch LH.
When the rear door RH is opened, ground is supplied
- to BCM terminal 13
- through rear door switch RH terminal 2
- through case ground of rear door switch RH.
When driver side door is unlocked by door lock and unlock switch, BCM receives a ground signal
- to BCM terminal 22
- through power window main switch (door lock and unlock switch) terminal 14 or power window sub-switch
(front passenger side) (door lock and unlock switch) terminal 16
- through power window main switch (door lock and unlock switch) terminal 17 or power window sub-switch
(front passenger side) (door lock and unlock switch) terminal 11
- through grounds M16 and M70.
When the driver side door is unlocked by the front door lock assembly (driver side) (key cylinder switch), BCM receives a ground signal
- to BCM terminal 22
- through power window main switch (door lock and unlock switch) terminals 14 and 6
- through front door lock assembly (driver side) (key cylinder switch) terminals 5 and 4
- through grounds M16 and M70.
When a signal, or combination of door open signals is received by BCM, ground is supplied
- to foot lamp driver side and passenger side terminals 2
- to personal lamp LH and RH terminals 1
- to map lamp terminal 2 and 5
- through BCM terminal 48, � to step lamp (driver side, passenger side, rear LH and RH) terminals 2
- to kicking plate illumination (driver side and passenger side) terminals 2
- through BCM terminal 47.
With power and ground supplied, the interior lamps illuminate.

SWITCH OPERATION
When any front door switch is ON (door is opened), ground is supplied
- to step lamp (driver side, passenger side, rear LH and RH) terminals 2
- to kicking plate illumination (driver side and passenger side) terminals 2
- through BCM terminal 47.
And power is supplied
- through BCM terminal 41
- to step lamp (driver side, passenger side, rear LH and RH) terminals 1
- to kicking plate illumination (driver side and passenger side) terminals 1.
When any door switch is ON (door is opened) and personal lamp and map lamp is DOOR position, ground is supplied
- to personal lamp LH and RH terminal 1
- to map lamp terminals 2 and 5
- through BCM terminal 48.
And power is supplied
- through BCM terminal 41
- to personal lamp LH and RH terminals 3
- to map lamp terminal 3.
When map lamp switch is ON, ground is supplied
- to map lamp terminal 1
- through grounds M16 and M70.
And power is supplied
- through BCM terminal 41
- to map lamp terminal 3.
When personal lamp LH and RH switch is ON, ground is supplied
- to personal lamp LH and RH terminals 2
- through grounds M16 and M70.
And power is supplied
- through BCM terminal 41
- to personal lamp LH and RH terminals 3.
When trunk lid lock assembly (trunk room lamp switch) is ON, ground is supplied
- to trunk room lamp (upper and lower) terminals 2
- through trunk lid lock assembly (trunk room lamp switch) terminals 1 and 2
- through grounds B405 and B402.
And power is supplied
- through BCM terminal 41
- to trunk room lamp (upper and lower) terminals 1.
When vanity mirror lamp LH and RH switch is ON, ground is supplied
- to vanity mirror lamp LH and RH terminals 2
- through grounds M16 and M70.
And power is supplied
- through BCM terminal 41
- to vanity mirror lamp (LH and RH) terminals 1.

ROOM LAMP TIMER OPERATION
BCM controls applicable lamps to illuminate for 15 seconds (can be set maximum 30 seconds) by timer operation under following conditions. BCM also controls applicable lamps to brighten for 1 second (can be set maximum 5 seconds) when turned ON, or to dim for 3 seconds (can be set maximum 5 seconds) when turned
OFF. (Timer operating time and dimming/brightening time can be changed with CONSULT-III. Consult-III Function (BCM - Int Lamp).) This control operates as follows.

Applicable lamps
- Room lamp system: map lamp, foot lamp (driver side and passenger side) and personal lamp (rear LH and rear RH).

BCM controls room lamp timer operation under following condition.
- Condition 1: Door lock state changes.*
BCM judges as the door lock is unlocked under either case below.
- The Intelligent Key unit sends door lock/unlock trunk open request signal (driver side unlock or passenger side unlock) to BCM through CAN communication line by unlock operation of intelligent key, outside key antenna and front door request switch (driver side) or outside key antenna and front door request switch
(passenger side).
- Key cylinder switch state (unlock) signal is sent to BCM through power window serial link when front door lock assembly (driver side) (key cylinder switch) is unlocked (ON) by power window main switch unlock operation.

And fulfills all the conditions below.
- The engine switch (push switch) is OFF.
- All the doors are closed.
*: This setting can be changed by CONSULT-III. Consult-III Function (BCM - Int Lamp).
- Condition 2: Any door switch state changes.*
The BCM terminal value of operated door switch is changed when any door is opened and then closed.
From that BCM judges as the door is opened and then closed.

And fulfills all the conditions below.
- The engine switch (push switch) is OFF.
- All the doors are closed.
*: This setting can be changed by CONSULT-III. Consult-III Function (BCM - Int Lamp).
- Condition 3: Engine switch (push switch) state changes.*
The Intelligent Key unit judges as the engine switch (push switch) is OFF and sends push-button ignition switch (push switch) signal to PDU (power distribution unit) when push-button ignition switch (push switch) turned OFF. Then PDU (power distribution unit) turns OFF, IGN power supply and ACC power supply.

And fulfills the conditions below.
- All the doors are closed.
*:This setting can be changed by CONSULT-III. Consult-III Function (BCM - Int Lamp).

NOTE:
When timer operation signal is input during former timer operation, BCM goes for latter timer operation.

ROOM LAMP TIMER OPERATING TIME






CONDITIONS FOR CANCELING TIMER
Timer operation is cancelled in any of the following conditions.
- Driver door is locked.
- Any door is opened.
- Turn ignition switch is ACC or ON.

ROOM LAMP TIMER INAPPLICABLE LAMPS OPERATION
- Step lamp system: step lamp (driver side, passenger side, rear LH and rear RH) and kicking plate illumination (driver side and passenger side).
Step lamp system lamps are ON/OFF linked with any door (driver side, passenger side, rear LH and rear
RH) opened and then closed.
- Vanity mirror lamp LH and RH.
Operated side vanity mirror lamp is ON/OFF linked with vanity mirror opened and then closed.
- Trunk room lamp (lower) and trunk room lamp (upper).
Trunk room lamps (lower and upper) are ON/OFF linked with trunk opened and then closed.

INTERIOR ROOM LAMP BATTERY SAVER FUNCTION

Applicable lamps
- Room lamp system: map lamp, foot lamp (driver side and passenger side) and personal lamp (rear LH and rear RH).
- Step lamp system: step lamp (driver side, passenger side, rear LH and rear RH) and kicking plate illumination (driver side and passenger side).
- Vanity mirror lamp LH and RH.
- Trunk room lamp (lower) and trunk room lamp (upper).
If the any applicable lamp is left illuminated, BCM turns OFF the battery saver output power supply 30 or 60 minutes to prevent run down of the battery. (Factory setting time is 30 minutes. And timer setting can be changed by CONSULT-III. Consult-III Function (BCM - Int Lamp).)
- When the push-button ignition switch (push switch) is turned from ON to OFF, the timer is activated.
- If any of the following door switch signal condition is changed with the push-button ignition switch (push switch) in OFF position, the timer is activated when the change is occurred.
Door switch signals (driver side, passenger side, rear LH and RH), front door lock assembly (driver side) (key cylinder switch) signal and Intelligent Key unlock signal.
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