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Home >> Acura >> 2017 >> ILX >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Interior Lighting - Testing & Troubleshooting (Except Hybrid) >> System Description >> Interior Lights - Control/Function (2013 2014 2015)

Interior Lights - Control/Function (2013 2014 2015)

Overview 

The entry light control system is controlled by MICU from the ignition signal, the door switch signal of each seat, the driver door knob switch and the B-CAN signal. Ceiling light, individual map light, trunk lid light, vanity mirror light, glove box light and footwell light are automatically turned on/off.

GHH471682Courtesy of HONDA, U.S.A., INC.

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 vehicle mode and the driver's door lock knob switch.

Input Output Control
Each Door Switch Vehicle Mode Before Input Change After Input Change
Any ON(Door open) -- -- Lights ON
-- -- 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 the driver's door lock knob switch moves from the lock/unlock position, the MICU detects a driver's door open/close position, and controls the interior lights.

Input Output Control
Driver's Door Lock Knob Switch(ON: LOCK) Each Door Switch Vehicle Mode Before Input Change After Input Change
ON -> OFF All OFF(Door close) OFF (LOCK)mode Lighting ON Lights ON by timer condition 1
Lighting OFF Lights ON by timer condition 5
OFF (LOCK)mode -- Continue the status before input change
Any ON(Door open) OFF (LOCK)mode --
OFF -> ON All OFF(Door close) OFF (LOCK)mode -- Lights OFF
Any ON(Door open) OFF (LOCK)mode -- Continue the status before input change

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

Each door switch link 

Anytime a door switch closes (ON signal), the MICU provides a ground to the interior lights.

Input Output Control
Each Door Switch Driver's Door Lock Knob Switch(ON: LOCK) Vehicle Mode Before Input Change After Input Change
Any ON(Door open)->All OFF(Door close) OFF OFF (LOCK)mode Lighting ON Lights ON by timer condition 2
Lighting OFF Continue the status before input change
ON mode -- Lights OFF
ON -- -- Lights OFF
Any OFF(Door close)->ON (Door open) -- OFF (LOCK)mode Lighting ON Lights ON by timer condition 3 (Timer restart)
Lighting OFF Lights ON by timer condition 3
ON mode -- Lights ON
-- --

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

Engine start/stop switch link 

If the vehicle mode turns to the ACCESSORY mode or the ON mode with the doors closed and the entry light control system illuminating the interior lights, the MICU fades the lights off.

Input Output Control
Vehicle Mode Each Door Switch Before Input Change After Input Change
ON mode -> OFF (LOCK) mode All OFF Lighting ON Lights ON by timer condition 1
Lighting OFF Lights ON by timer condition 5
Any ON -- Lights ON by timer condition 3
All OFF -- Lights OFF
Any ON -- Lights ON by timer condition 3
-- -- Continue the status before input change
OFF (LOCK) mode-> ON mode All OFF -- Lights OFF
Any ON -- Lights ON

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

Keyless link 

When the MICU receives an unlock signal from the keyless access 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 -> OFFor OFF -- Lights ON by timer condition 4
ON -- Continue the status before input change
Any ON(Door open) -- -- Lights ON by timer condition 3
LOCK Signal All OFF(Door close) OFF -> ONor ON -- Lights OFF
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 Control 

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

GHH471683Courtesy of HONDA, U.S.A., INC.

Trunk Lid Link Control 

Control Function 

The MICU controls the trunk lid light ON, OFF based upon the tailgate latch switch signals.

GHH471684Courtesy of HONDA, U.S.A., INC.