Courtesy Lamp: Description and Operation

INTERIOR ROOM LAMP

System Description
When room lamp and personal lamp switch is in DOOR position, room lamp and personal lamp ON/OFF is controlled by timer according to signals from switches including key switch, front door switch driver side, unlock signal from keyfob, door lock and unlock switch, key cylinder lock and unlock switch, ignition switch. When room lamp and personal lamp turns ON, there is a gradual brightening over 1 second. When room lamp and personal lamp turns OFF, there is a gradual dimming over 1 second.

The room lamp and personal lamp timer is controlled by the BCM (body control module).

Room lamp and personal lamp timer control settings can be changed with CONSULT-II.

Ignition keyhole illumination turns ON at time when driver door is opened (door switch ON) or removed keyfob from key cylinder. Illumination turns OFF when driver door is closed (door switch OFF).

Step lamp turns ON at time when driver door or passenger door is opened (door switch ON). Lamp turns OFF when driver, passenger doors are closed (all door switches OFF).

POWER SUPPLY AND GROUND
Power is supplied at all times (without Intelligent Key system)
- through 15 A fuse [No. 22, located in the fuse block (J/B)]
- to key switch terminal 2 and
- to BCM (body control module) terminal 42.
- through 50 A fusible link [letter M, located in the fuse and fusible link box]
- to BCM (body control module) terminal 55.

Power is supplied at all times (with Intelligent Key system)
- through 10 A fuse [No.38, located in the fuse and fusible link box]
- to key switch and ignition knob switch terminals 1
- through 15 A fuse [No.22, located in the fuse block (J/B)]
- to BCM (body control module) terminal 42, and
- to key switch and ignition knob switch terminal 3, and
- to key switch terminal 2
- through 50 A fusible link [letter M, located in the fuse and fusible link box]
- to BCM (body control module) terminal 55.

When the key plate inserted to key switch, power is supplied (without Intelligent Key system)
- through the key switch terminal 1
- to BCM (body control module) terminal 37.

When inserted the key plate to key switch, power is supplied (with Intelligent Key system)
- through the key switch and ignition knob switch terminal 4
- to BCM (body control module) terminal 37.

When moved the ignition knob switch, power is supplied (with Intelligent Key system)
- through the ignition knob switch terminal 2
- to intelligent key unit terminal 27.

With the ignition switch in the ON or START position, power is supplied
- through 15 A fuse [No. 1, located in the fuse block (J/B)]
- to BCM (body control module) terminal 38.

Ground is supplied
- to BCM (body control module) terminals 49 and 52
- through grounds terminals M35, M45 and M85.

When the driver side door is opened, ground is supplied
- through case ground of door switch driver side
- to BCM (body control module) terminal 62.

When the passenger side door is opened, ground is supplied
- through case ground of door switch passenger side
- to BCM (body control module) terminal 12.

When the rear door LH is opened, ground is supplied
- through case ground of door switch rear door LH
- to BCM (body control module) terminal 63, and
- to personal lamp LH terminal 1.

When the rear door RH is opened, ground is supplied
- through case ground of door switch rear door RH
- to BCM (body control module) terminal 13, and
- to personal lamp RH terminal 1.

When the driver side door is unlocked by the door lock and unlock switch, BCM (body control module) receives a ground signal
- through grounds terminals M35, M45 and M85
- to power window main switch terminal 17 (door lock and unlock switch) or front power window (passenger side) terminal 11 (door lock and unlock switch)
- from power window main switch terminal 14 (door lock and unlock switch) or front power window (passenger side) terminal 16 (door lock and unlock switch)
- to BCM (body control module) terminal 22.

When the front driver side door is unlocked by the driver side door lock assembly (door key cylinder switch), BCM (body control module) receives a ground signal
- through grounds M35, M45 and M85
- to front door lock assembly (driver side) (door key cylinder switch) terminal 5
- from front door lock assembly (driver side) (door key cylinder switch) terminal 6
- to power window main switch terminal 6 (door lock and unlock switch)
- from power window main switch terminal 14 (door lock and unlock switch)
- to BCM (body control module) terminal 22.

When a signal, or combination of signals is received by BCM (body control module), ground is supplied
- through BCM (body control module) terminal 48
- to interior room lamp terminal 1,
- to map lamp terminal 2 and
- to front door inside handle illumination terminal 2

With power and supplied, the interior lamp illuminates.

SWITCH OPERATION
When driver door switch is ON (door is opened), ground is supplied
- through BCM terminal 1
- to ignition keyhole illumination terminal 2.

And power is supplied
- from BCM terminal 41
- to ignition keyhole illumination terminal 1.

When any door switch is ON (door is opened), ground is supplied
- through BCM terminal 47
- to front step lamp driver side and passenger side, rear step lamp (LH and RH)
- through rear door switch terminal 1
- to personal lamp (LH and RH) terminal 1.

And power is supplied
- from BCM terminal 41
- to every step lamp terminal 1, and personal lamp (LH and RH) terminal 2.

When map lamp switch is ON, ground is supplied
- through grounds M35, M45 and M85
- to map lamp terminal 1.

And power is supplied
- from BCM terminal 41
- to map lamp terminal 3.

When vanity mirror lamp (driver side and passenger side) is ON, ground is supplied
- through grounds M35, M45 and M85
- to vanity mirror lamp (driver side and passenger side) terminal 2.

And power is supplied
- from BCM terminal 41
- to vanity mirror lamp (driver side and passenger side) terminal 1.

When luggage room lamp (back door side) is ON, ground is supplied
- through grounds B15 and B45
- to luggage room lamp (back door side) terminal 3.

And power is supplied
- from BCM terminal 41
- to luggage room lamp (body side and back door side) terminal 2.

ROOM LAMP TIMER OPERATION

Without Intelligent Key System
When interior room lamp and map lamp switch is in DOOR position, and when all conditions below are met, BCM performs timer control (maximum 30 seconds) for interior room lamp and map lamp ON/OFF. In addition, when spot turns ON or OFF there is gradual brightening or dimming over 1 second.

Power is supplied
- to 15 A fuse [No. 22, located in the fuse block (J/B)]
- through key switch terminal 2.

Key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM terminal 37.

Ground is supplied
- from BCM terminal 22
- to power window main switch (door lock and unlock switch) terminal 14.

At the time that driver door are opened, BCM detects that driver door is unlocked. It determines that interior room lamp and map lamp timer operation conditions are met, and turns the interior room lamp and map lamp ON for 30 seconds.

Key is in ignition key cylinder (key switch ON),

Power is supplied
- through key switch terminal 1
- to BCM terminal 37.

When key is removed from key switch (key switch OFF), power supply to BCM terminal 37 is terminated. BCM detects that key has been removed, determines that interior room lamp and map lamp timer conditions are met, and turns the interior room lamp and map lamp ON for 30 seconds.

When driver door opens -> closes, and the key is not inserted in the key switch (key switch OFF), BCM terminal 62 changes between 0 V (door open) -> 12 V (door closed). The BCM determines that conditions for interior room lamp and map lamp operation are met and turns the interior room lamp ON for 30 seconds.

Timer control is canceled under the following conditions.
- Driver door is locked [when locked keyfob or power window main switch (door lock and unlock switch), door key cylinder switch]
- Driver door is opened (driver door switch turns ON)
- Ignition switch ON.

With Intelligent Key System
When interior room lamp and map lamp switch is in DOOR position, and when all conditions below are met, BCM performs timer control (maximum 30 second) for interior room lamp and map lamp ON/OFF.

In addition, when spot turns ON or OFF there is gradual brightening or dimming over 1 second.

Power is supplied
- to 15 A fuse [No. 22, located in the fuse and fuse block (J/B)]
- through key switch and ignition knob switch terminal 3.

Key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM terminal 37. And not turned ignition knob switch, power will not be supplied to Intelligent Key unit.

Ground is supplied
- from BCM terminal 22
- to power window main switch (door lock and unlock switch) terminal 14.

At the time that driver door are opened, BCM detects that driver door is unlocked. It determines that interior room lamp and map lamp timer operation conditions are met, and turns the interior room lamp and map lamp ON for 30 seconds.

Key is in ignition key cylinder (key switch ON), or turned ignition knob switch, Power is supplied
- through key switch and ignition knob switch terminal 4
- to BCM terminal 37
- through key switch and ignition knob switch terminal 2
- to Intelligent Key unit terminal 27.

When key is removed from key switch (key switch OFF), power supply to BCM terminal 37 is terminated. And turned ignition knob switch, power supply to Intelligent Key unit is terminated. BCM detects that key has been removed, determines that interior room lamp and map lamp timer conditions are met, and turns the interior room lamp and map lamp ON for 30 seconds.

When driver door opens -> closes, and the key is not inserted in the key switch (or not turned ignition knob switch), BCM terminal 62 changes between 0 V (door open) -> 12 V (door closed). The determines that conditions for interior room lamp and map lamp operation are met and turns the interior room lamp ON for 30 seconds.

Timer control is canceled under the following conditions.
- driver door is locked [when locked keyfob or power window main switch (door lock and unlock switch), door key cylinder switch]
- driver door is opened (driver door switch terns ON)
- ignition switch ON.

INTERIOR LAMP BATTERY SAVER CONTROL
If interior lamp is left "ON", it will not be turned out even when door is closed.

BCM turns off interior lamp automatically to save battery 30 minutes after ignition switch is turned off.

BCM controls interior lamps listed below:
- Luggage room lamp
- Vanity mirror lamp
- Map lamp
- Interior room lamp
- Personal lamp

After lamps turn OFF by the battery saver system, the lamps illuminate again when
- signal from keyfob, or power window main switch (door lock and unlock switch) or key cylinder is locked or unlocked,
- door is opened or closed,
- key is removed from ignition key cylinder or inserted in ignition key cylinder, or turned ignition knob switch.

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