Interior Lights System Description - Control/Function

Interior Lights Control 

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	Ignition Key Switch*	Vehicle Mode	Before Input Change	After Input Change
Any ON (Door open)	ON (Key inserted)	- -	- -	Lights ON
	OFF (Key removed)	- -	- -	Lights ON by timer condition 3
All OFF (Door closed)	- -	- -	- -	Lights OFF

*: Without keyless access system

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	Each Door Switch	Ignition Key Switch*	Vehicle Mode	Before Input Change	After Input Change
ON (LOCK) ↓ OFF (UNLOCK)	All OFF (Door closed)	OFF (Key removed)	OFF (LOCK) mode	Lights ON	Lights ON by timer condition 1
				Lights OFF	Lights ON by timer condition 5
		ON (Key inserted)	OFF (LOCK) mode	- -	Continue the status before input change
	Any ON (Door open)	- -	OFF (LOCK) mode	- -
OFF (UNLOCK) ↓ ON (LOCK)	All OFF (Door closed)	- -	OFF (LOCK) mode	- -	Lights OFF
	Any ON (Door open)	- -	OFF (LOCK) mode	- -	Continue the status before input change

*: Without keyless access system

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

Each door switch link 

By opening each door or the tailgate, the MICU will light the interior lights at anytime.

Input				Output Control
Each Door Switch	Driver's Door Lock Knob Switch	Ignition Key Switch*	Vehicle Mode	Before Input Change	After Input Change
Any ON (Door open) ↓ All OFF (Door open)	OFF (UNLOCK)	OFF (Key removed)	OFF (LOCK) mode	Lights ON	Lights ON by timer condition 2
				Lights OFF	Continue the status before input change
			ON mode	- -	Lights OFF
		ON (Key inserted)	- -	- -
	ON (LOCK)	- -	- -	- -

*: Without keyless access system

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

Input				Output Control
Each Door Switch	Driver's Door Lock Knob Switch	Ignition Key Switch*	Vehicle Mode	Before Input Change	After Input Change
Any OFF (Door closed) ↓ Any ON (Door open)	- -	OFF (Key removed)	OFF (LOCK) mode	Lights ON	Lights ON by timer condition 3 (Timer restart)
				Lights OFF	Lights ON by timer condition 3
			ON mode	- -	Lights ON
		ON (Key inserted)	- -	- -

*: Without keyless access system

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

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
Ignition Key Switch*1	Remote*2	Each Door Switch	Vehicle Mode	Before Input Change	After Input Change
ON (Key inserted) ↓ OFF (Key removed)	ON (Remote inside the vehicle) ↓ OFF (Remote outside the vehicle)	All OFF (Door closed)	OFF (LOCK) mode	Lights ON	Lights ON by timer condition 1
				Lights OFF	Lights ON by timer condition 5
		Any ON (Door open)	OFF (LOCK) mode	- -	Lights ON by timer condition 3
OFF (Key removed) ↓ ON (Key inserted)	OFF (Remote outside the vehicle) ↓ ON (Remote inside the vehicle)	All OFF (Door closed)	OFF (LOCK) mode	- -	Continue the status before input change
		Any ON (Door open)	OFF (LOCK) mode	- -	Lights ON

*1: Without keyless access system *2: With keyless access system

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

Ignition switch/Engine start/stop switch link 

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

Input			Output Control
Vehicle Mode	Ignition Key Switch*	Each Door Switch	Before Input Change	After Input Change
ON mode ↓ OFF (LOCK) mode	OFF (Key removed)	All OFF (Door closed)	Lights ON	Lights ON by timer condition 1
			Lights OFF	Lights ON by timer condition 5
		Any ON (Door open)	- -	Lights ON by timer condition 3
		All OFF (Door closed)	- -	Lights OFF
		Any ON (Door open)	- -	Lights ON by timer condition 3
	ON (Key inserted)	- -	- -	Continue the status before input change
OFF (LOCK) mode ↓ ON mode	ON/OFF (Key inserted/Key removed)	All OFF (Door closed)	- -	Lights OFF
		Any ON (Door open)	- -	Lights ON

*: Without keyless access system

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

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	Before Input Change	After Input Change
UNLOCK signal	All OFF (Door closed)	ON (LOCK) ↓ OFF (UNLOCK) or OFF (UNLOCK)	- -	Lights ON by timer condition 4
		ON (LOCK)	- -	Continue the status before input change
	Any ON (Door open)	- -	- -	Lights ON by timer condition 3
LOCK Signal	All OFF (Door closed)	OFF (UNLOCK) ↓ ON (LOCK) or ON (LOCK)	- -	Lights OFF
		OFF (UNLOCK)	- -	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.

Courtesy of HONDA, U.S.A., INC.

Tailgate Link Control 

The MICU controls the cargo area light ON, OFF based on the tailgate latch switch signals.

Courtesy of HONDA, U.S.A., INC.