Courtesy Lamp: Description and Operation

INTERIOR ROOM LAMPS / System Description

OUTLINE
Interior room lamps other than vanity lamp LH/RH (and map lamp when switch is in ON position) are controlled by the smart entrance control unit corresponding to the following signals
- Ignition switch (Power supply signal to smart entrance control unit terminal 43)
- Key switch (Ground signal to smart entrance control unit terminal 35)
- Lighting switch (Momentary ground signal to smart entrance control unit terminal 32)
- Front door switch LH/RH, sliding door switch LH/RH, back door latch switch LH/RH (Ground signal to smart entrance control unit terminal 9, 24, 34 or 41)
- Keyfob.

Power is supplied at all times
- through 15 A fuse (No. 21, located in the fuse block)
- to all interior room lamps.

Ground is supplied to the controlled interior room lamps
- through smart entrance control unit terminal 5 (Zone A)
- through smart entrance control unit terminal 4 (Zone B) or
- through smart entrance control unit terminal 6 (Zone C).

Controlled interior room lamps are grouped as Zone A, B or C depending on connected smart entrance control unit terminals as follows
- Map lamp (Zone A, when its switch is in DOOR position) (Zone C, when its switch is in ON position)
- Front/rear room lamp (Zone B, when its switch is in DOOR position or Zone C, when its switch is in ON position)
- Front/rear personal lamps (Zone B, when its switch is in DOOR position or Zone C, when its switch is in ON position)
- Front step lamp LH/RH (Zone A)
- Foot lamp LH/RH (Zone A)
- Sliding door step lamp LH/RH (Zone B)
- Back door lamp (Zone B)
- Glove box lamp (Zone C, when glove box lid is opened).

Vanity lamp LH/RH are not controlled by the smart entrance control unit. They turn on and off corresponding to the switch position on the lamp.

When the vanity lamp LH/RH switch is turned on, ground is supplied
- to vanity lamp LH/RH terminal 2
- through body grounds M68, M105, and M130.

With power and ground supplied, the operated lamp turns on.

OPERATION
Interior room lamps turn on when
- key switch in REMOVED position (ignition key removed from ignition key cylinder)
- any door is opened
- lighting switch is pushed (momentary on switch)
- unlock signal is transmitted from keyfob (only for Zone A and B).

Zone C interior room lamps will turn off when the last door is closed. Zone A and B interior room lamps will remain fully illuminated for 1 second. After 1 second, Zone A and B interior room lamps are lit at half illumination for approximately 10 seconds. Finally the interior room lamps will gradually fade away over approximately the next 5 seconds.

Interior room lamps will turn off immediately during the above timer operation when
- ignition switch is turned to ON position
- lock signal is transmitted from keyfob
- lighting switch is pushed (momentary on switch).

If the interior room lamps are turned on by pushing the lighting switch (momentary on switch), they can be turned off by pushing the lighting switch again.

BATTERY SAVER
If any of the lamps controlled by smart entrance control unit remain on for an extended period of time, the smart entrance control unit will turn off the lamps to save the battery consumption by opening the ground circuit.

Zones A and B (Door Controlled)
When the driver, passenger or either side door is left open, and ignition switch is OFF, the interior room lamps will turn OFF after approximately 30 minutes.

When the back door is left open and ignition switch is OFF, the interior room lamps will turn OFF after approximately 60 minutes.

If the ignition switch is turned from OFF to ON and then OFF or any door is opened or closed, the battery saver timer is reset.

Zone C (Timer Controlled)
When ignition switch is turned OFF, the smart entrance control unit provides a ground for approximately 30 minutes to Zone C circuit.

The timer is reset when any door is opened or closed.