System Description

SYSTEM DIAGRAM

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Component	Function
Keyless operation key	Operates based on the results of electronic ID verification using two-way communication between the Keyless operation key and the vehicle (Keyless operation key unit).
Door request switch	Detects door lock/unlock operation.
Electric motor switch	Refer to ELECTRIC MOTOR SWITCH .
Door switch	Detects door open/close condition.
Combination switch (Lighting & turn signal switch)	Inputs the each switch condition signal to BCM.
Front power window motor LH	Transmits front power window open/close signal to BCM via LIN communication.
Keyless operation key unit	Transmits electric motor switch status signal and door lock/unlock request signal to BCM via CAN communication.
ABS actuator and electric unit (control unit)	Transmits vehicle speed signal (ABS) to BCM via CAN communication.
TCU	Transmits auto ACC request signal to BCM via CAN communication.
BCM	BCM operates the auto ACC function based on each signal state.
Accessory relay	Controlled by BCM and turns ON/OFF the battery power supply to each parts.
Audio/Navigation	Transmits auto ACC request signal to BCM via CAN communication. Auto ACC status signal receives from BCM via CAN communication.

DESCRIPTION

In conventional vehicles, power is supplied to the accessories of the vehicle after the electric motor switch is pushed to the ACC position.

The AUTO ACC function is a function that bypasses the electric motor switch ACC position and automatically distributes the accessory power supply to each switch and unit by door unlock operation, etc. using the Keyless operation key.

OPERATION FLOW

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Electric motor switch ON state

In this status the electric motor switch is operated and pushed ON.

Audio/Navigation use possible state

In this status the audio/navigation, and each switch and unit that is activated by the accessory power supply can be operated.
When 10 minutes pass after conditions are satisfied while and audio/navigation are not operated, audio/navigation turn OFF.

Audio/Navigation preparation state

In this status audio/navigation are stopped, but the switches and units other than those for audio/navigation that can operate by using the accessory power supply are available until the accessory power supply turns OFF.
When audio/navigation is operated within one minute after conditions are satisfied, operation time is extended for 10 minutes. Audio/navigation can be operated for a maximum of 30 minutes after the status is satisfied.

Function OFF state

In this status the AUTO ACC function stops and power to the accessories is not supplied.

No.	Function status	Shifting condition	Accessory power supply
(1)	Shifting from "Function OFF state" to "Electric motor switch ON state"	Any of the following conditions is satisfied. Turn the electric motor switch ON from OFF. Operate electric motor switch and start the engine.	OFF --> ON
	Shifting from "Audio/Navigation preparation state" to "Electric motor switch ON state"		ON
	Shifting from "Audio/Navigation use possible state" to "Electric motor switch ON state"		ON
(2)	Shifting from "Function OFF state" to "Audio/Navigation preparation state"	Any of the following conditions is satisfied. Each door is opened or closed. Close all doors, and lock all doors with the Keyless operation key or door request switch. Operate either the door request switch or the unlock button of the Keyless operation key to unlock the door. Operate lighting switch and turn ON the tail light. Software update of the AV control unit. Map data update.	OFF --> ON
(3)	Shifting from "Audio/Navigation preparation state" to "Audio/Navigation use possible state"	Operate audio/navigation.	ON
(4)	Shifting from "Electric motor switch ON state" to "Audio/Navigation use possible state"	Turn the electric motor switch OFF from ON while driver door is close with vehicle speed is less than 3 km/h (1.86 mph).	ON
(5)	Shifting from "Electric motor switch ON state" to "Audio/Navigation preparation state"	Turn the electric motor switch OFF from ON while driver door is open with vehicle speed is less than 3 km/h (1.86 mph).	ON
(6)	Shifting from "Audio/Navigation use possible state" to "Audio/Navigation preparation state"	Any of the following conditions is satisfied. Driver door is opened. Close all doors, and lock all doors with the Keyless operation key or door request switch. Ten minutes pass from "Audio/Navigation use possible state".	ON
(7)	Shifting from "Audio/Navigation use possible state" to "Function OFF state"	Thirty minutes pass from "Audio/Navigation use possible state".	ON --> OFF
(8)	Shifting from "Audio/Navigation preparation state" to "Function OFF state"	One minute or 30 minutes pass from "Audio/Navigation preparation state".	ON --> OFF
(9)	Shifting from "Audio/Navigation use possible state" time extension (1 minute)	Any of the following conditions is satisfied. Each door is opened or closed. Close all doors, and lock all doors with the Keyless operation key or door request switch. Operate either the door request switch or the unlock button of the Keyless operation key to unlock the door. Operate lighting switch and turn ON the tail light. Operate power window main switch and open/close the front power window LH. Software update of the AV control unit. Map data update.	ON
(10)	Shifting from "Electric motor switch ON state" (in status of emergency stop) to "Audio/Navigation use possible state"	Vehicle speed is less than 3 km/h (1.86 mph) and except driver door is opened.	ON
(11)	Shifting from "Electric motor switch ON state" (in status of emergency stop) to "Audio/Navigation preparation state"	Vehicle speed is less than 3 km/h (1.86 mph) and driver door is opened.	ON
(12)	Shifting from "Function OFF state" to "Audio/Navigation use possible state"	Operate telematics system.	OFF --> ON