Interior Lights System Description - Control/Function

System Function

Initial state of connection of electric power supply

In the initial state of connection of electric power supply, close/open of each door is detected and controlled without being affected by states of the ignition switch or the engine start/stop switch and the driver's door lock knob switch.

Input			Output Control
Each Door Switch	KEY SW Line	IG1 Line	Before Input Change	After Input Change
Any ON (Door open)	ON	??	??	Lights ON
Any ON (Door open)	OFF	??	??	Lights ON by timer condition 3
All OFF (Door close)	??	??	??	Lights OFF

NOTE: The "??" means that not use on this system.

Driver's door lock knob switch link

When a driver door lock knob switch moves from the lock/unlock position, the MICU detects the driver's door open/close position, and control the interior lights.

Input					Output Control
Driver's Door Lock Knob Switch (ON: LOCK)	Each Door Switch	KEY SW Line	IG1 Line	Remote Engine Start*	Before Input Change	After Input Change
ON ? OFF	All OFF (Door close)	OFF	ON	ON	Lighting ON	Lights ON by timer condition 1
			ON	ON	Lighting OFF	Lights ON by timer condition 5
			OFF	??	Lighting ON	Lights ON by timer condition 1
			OFF	??	Lighting OFF	Lights ON by timer condition 5
		ON	OFF	??	??	Continue the status before input change
	Any ON (Door open)	??	OFF	??	??	Continue the status before input change
OFF? ON	All OFF (Door close)	??	ON	ON	??	Lights OFF
	All OFF (Door close)	??	OFF	??	??	Lights OFF
	Any ON (Door open)	??	OFF	??	??	Continue the status before input change

NOTE: The "??" means that it is not used on this system.
*: With Remote Engine Starter

Each door switch link

By opening each door, the MICU will light the interior lights at any time.

Input					Output Control
Each Door Switch	Driver's Door Lock Knob Switch (ON: LOCK)	KEY SW Line	IG1 Line	Remote Engine Start*	Before Input Change	After Input Change
Any ON (Door open) ? All OFF (Door close)	OFF	OFF	ON	ON	Lighting ON	Lights ON by timer condition 2
				ON	Lighting OFF	Continue the status before input change
				OFF	??	Lights OFF
			OFF	??	Lighting ON	Lights ON by timer condition 2
			OFF	??	Lighting OFF	Continue the status before input change
		ON	??	??	??	Lights OFF
	ON	??	??	??	??	Lights OFF
Any OFF (Door close) ? ON (Door open)	??	OFF	ON	ON	Lighting ON	Lights ON by timer condition 3 (Timer restart)
				ON	Lighting OFF	Lights ON by timer condition 3
				OFF	??	Lights ON
			OFF	??	Lighting ON	Lights ON by timer condition 3 (Timer restart)
			OFF	??	Lighting OFF	Lights ON by timer condition 3
		ON	??	??	??	Lights ON

NOTE: The "??" means that it is not used on this system.
*: With Remote Engine Starter

Ignition key switch/Remote link

When the system detects that the ignition key is inserted into the ignition key switch, or the remote is inside the vehicle, it provides a ground to the interior lights.

Input			Output Control
KEY SW Line	Each Door Switch	IG1 Line	Before Input Change	After Input Change
ON ? OFF	All OFF	OFF	Lighting ON	Lights ON by timer condition 1
	All OFF	OFF	Lighting OFF	Lights ON by timer condition 5
	Any ON	OFF	??	Lights ON by timer condition 3
OFF ? ON	All OFF	OFF	??	Continue the status before input change
OFF ? ON	Any ON	OFF	??	Lights ON

NOTE: The "??" means that not use on this system.

Ignition switch/Engine start/stop switch link

If all doors are closed and turned the vehicle to the ON mode, the MICU fades off the interior lights.

Input				Output Control
IG1 Line	KEY SW Line	Remote Engine Start*	Each Door Switch	Before Input Change	After Input Change
ON ? OFF	OFF	OFF	All OFF	Lighting ON	Lights ON by timer condition 1
			All OFF	Lighting OFF	Lights ON by timer condition 5
			Any ON	??	Lights ON by timer condition 3
		ON	All OFF	??	Lights OFF
		ON	Any ON	??	Lights ON by timer condition 3
	ON	??	??	??	Continue the status before input change
OFF ? ON	??	??	All OFF	??	Lights OFF
OFF ? ON	??	??	Any ON	??	Lights ON
ON	??	ON ? OFF	All OFF	??	Lights OFF
ON	??	ON ? OFF	Any ON	??	Lights ON

NOTE: The "??" means that it is not used on this system.
*: With Remote Engine Starter

Keyless link

When the MICU receives an unlock signal from the keyless access control unit (or immobilizer-keyless control unit), it provides a ground to the interior lights.

Input			Output Control
Keyless Door LOCK/ UNLOCK Signal	Each Door Switch	Driver's Door Lock Knob Switch (ON: LOCK)	Before Input Change	After Input Change
UNLOCK signal	All OFF (Door close)	ON ? OFF or OFF	??	Lights ON by timer condition 4
	All OFF (Door close)	ON	??	Continue the status before input change
	Any ON (Door open)	??	??	Lights ON by timer condition 3
LOCK Signal	All OFF (Door close)	OFF ? ON or ON	??	Lights OFF
	All OFF (Door close)	OFF	??	Continue the status before input change
	Any ON (Door open)	??	??	Continue the status before input change

NOTE: The "??" means that not use on this system.

Timer conditions

The chart shows lighting duration, along with the dimming function that occurs at the end of the timer period.

Trunk Light Control

The MICU controls the trunk light ON/OFF based on the trunk lid latch switch signals.

Door Courtesy Lights Control

The MICU controls the door courtesy light ON/OFF based on the door switch signals.