Courtesy Lamp: Description and Operation

INTERIOR ROOM LAMP

System Description

MODELS WITHOUT POWER DOOR LOCKS

Power Supply and Ground
Power is supplied at all times
- through 10 A fuse [No. 18, located in the fuse block (J/B)]
- to front room/map lamp assembly terminal 2
- to room lamp 2nd row terminal 2
- to ignition keyhole illumination terminal 1
- to cargo lamp terminal 2.

Ground is supplied
- to front room/map lamp assembly terminal 3
- through grounds M57, M61 and M79, and
- to back door switch terminal 1
- through grounds D406 and D652.

Switch Operation
When the back door is open, ground is supplied
- to cargo lamp terminal 1
- through diode 7 terminal 2
- through diode 7 terminal 1
- through back door switch terminal 3
- through back door switch terminal 1
- through grounds D406 and D652.

Power is supplied
- through 10 A fuse [No. 18, located in the fuse block (J/B)]
- to cargo lamp terminal 2.

When the cargo lamp switch is ON, ground is supplied through case ground of cargo lamp.
With power and ground supplied, the cargo lamp illuminates.

When any side door switch is ON (door is opened), ground is supplied
- to front room/map lamp assembly terminal 1
- to room lamp 2nd row terminal 1
- through diode 6 terminal 2 (front door switch LH only)
- through diode 6 terminal 1 (front door switch LH only)
- through door switch terminal 1
- through case ground of any door switch.

When the front door LH is open, ground is supplied
- to ignition keyhole illumination terminal 2
- through front door switch LH terminal 1
- through case ground of the front door switch LH.

Power is supplied
- through 10 A fuse [No. 18, located in the fuse block (J/B)]
- to front room/map lamp assembly terminal 2
- to room lamp 2nd row terminal 2, and
- to ignition keyhole illumination terminal 1.

When room lamp 2nd row is ON, ground is supplied through room lamp 2nd row case ground. When front room/map lamp assembly switch is ON, ground is supplied
- through front room/map lamp assembly terminal 3
- to grounds M57, M61 and M79.

MODELS WITH POWER DOOR LOCKS
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 LH, unlock signal from keyfob, door lock and unlock switch, key cylinder switch, ignition switch and back door switch.

When room/map lamp and personal lamp turns ON, they will stay on for about 30 seconds. When room/map lamp and personal lamp turns OFF, they will turn off after about 30 seconds.

The room/map lamp and personal lamp timer is controlled by the BCM (body control module). Room/map lamp and personal lamp timer control settings can be changed with CONSULT-II.

Ignition keyhole illumination turns ON when front door LH is opened (door switch ON) or key is removed from key switch. Illumination turns OFF when front door LH is closed (door switch OFF).

Power Supply and Ground

Power is supplied at all times
- through 10 A fuse (No. 25, located in the fuse and fusible link box)
- to key switch terminal 2, and
- through 10 A fuse [No. 18, located in the fuse block (J/B)]
- to BCM terminal 57, and
- through 50 A fusible link (letter g , located in the fuse and fusible link box)
- to BCM terminal 70.

When the key is inserted in key switch, power is supplied
- through key switch terminal 1
- to BCM terminal 37.

With the ignition switch in the ON or START position, power is supplied
- through 10 A fuse [No. 1, located in the fuse block (J/B)]
- to BCM terminal 38.

Ground is supplied
- to BCM terminal 67
- through grounds M57, M61 and M79.

When the front door LH is opened, ground is supplied
- to BCM terminal 47
- through front door switch LH terminal 2
- through case ground of front door switch LH.

When the front door RH is opened, ground is supplied
- to BCM terminal 12
- through front door switch RH terminal 2
- through case ground of front door switch RH.

When the rear door LH is opened, ground is supplied
- to BCM terminal 48
- 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 the back door is open, ground is supplied
- to BCM terminal 43
- through back door switch terminal 3
- through back door switch terminal 1
- through grounds D406 and D652.

When the front door LH or RH is unlocked by the door lock/unlock switch, BCM receives ground signal
- to BCM terminal 46
- through main power window and door lock/unlock switch terminal 11 or power window and door lock/ unlock switch RH terminal 2
- through main power window and door lock/unlock switch terminal 14 or power window and door lock/ unlock switch RH terminal 3
- through grounds M57, M61 and M79.

When the front door LH is unlocked by the key, the BCM receives ground signal
- to BCM terminal 7
- through front door lock assembly LH (key cylinder switch) terminal 3
- through front door lock assembly LH (key cylinder switch) terminal 4
- through grounds M57, M61 and M79.

When the back door is unlocked by the key, the BCM receives ground signal
- to BCM terminal 7
- through back door switch terminal 3
- through back door switch terminal 2
- through grounds D406 and D652.

When a signal, or combination of signals is received by BCM, ground is supplied
- to front room/map lamp assembly terminal 2
- to room lamp 2nd row terminal 1
- through BCM terminal 63, and
- to cargo lamp terminal 1
- through BCM terminal 49.

With power and ground supplied, the lamps illuminate.

Switch Operation
When any door switch is ON (door is opened), ground is supplied
- to front room/map lamp assembly terminal 2
- to room lamp 2nd row terminal 1
- through BCM terminal 63, and
- to ignition keyhole illumination terminal 2
- through BCM terminal 1.

Power is supplied
- through BCM terminal 56
- to ignition keyhole illumination terminal 1
- to front room/map lamp assembly terminal 1
- to vanity lamp LH and RH terminal 1 (with vanity lamps)
- to room lamp 2nd row terminal 2, and
- to cargo lamp terminal 2.

When front room/map lamp assembly switch is ON, ground is supplied
- through front room/map lamp assembly terminal 3
- to grounds M57, M61 and M79.

When vanity lamp (LH and RH) is ON, ground is supplied
- to vanity lamp LH and RH terminal 2
- through grounds B7 and B19.

When the cargo lamp switch is ON, ground is supplied through case ground of cargo lamp. When room lamp 2nd row is ON, ground is supplied through room lamp case ground. With power and ground supplied, the lamps illuminates.

Room Lamp Timer Operation
When 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.

Power is supplied
- through 10 A fuse (No. 25, located in the fuse and fusible link box)]
- to 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
- to BCM terminal 46
- through main power window and door lock/unlock switch terminal 11.

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

When front door LH opens -> closes, and the key is not inserted in the key switch (key switch OFF), BCM terminal 47 changes between 0 V (door open) -> 12 V (door closed). The BCM determines that conditions for interior room lamp operation are met and turns the interior room lamp ON for 30 seconds.

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

Interior Lamp Battery Saver Control
If interior lamp is left ON, it will not be turned off 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:
- Vanity lamp (with vanity lamps)
- Front room/map lamp
- Room lamp 2nd row
- Ignition keyhole illumination
- Cargo lamp

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

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