COMMUNICATION METHOD
The exclusive signal lines for transmitting the multi-distribution data are connected as follows between the ETACS-ECU, column switch (incorporated inside the column-ECU), front-ECU, sunroof motor assembly (incorporated inside the sunroof-ECU), power window main switch (incorporated inside the power window-ECU), and power window sub switches (incorporated inside the power window-ECU) <Vehicles for Argentina> for internal communication.
   
   
When the driver's door is opened with the ignition key inserted in the ignition key cylinder (with the ignition switch OFF), the buzzer sounds intermittently (ping sound) to alert the driver that the key is not removed.
   
When the ignition key is removed and then the driver's door is opened with turning ON the tail lamp or the headlamp, the buzzer sounds continuously to alert the driver that the lamp is still ON.
However, if the tail lamp or the headlamp is turned off by the headlamp automatic shutdown function <Except vehicles for Australia>, the buzzer does not sound.
   
When the driver's door is locked (when the lock switch turns ON after turning OFF the unlock switch in the driver's door lock actuator), ETACS-ECU turns ON the lock relay output for 0.25 second, and locks all doors (including the tailgate).
When the driver's door is unlocked (when the unlock switch turns ON after turning OFF the lock switch on the driver's door lock actuator), ETACS-ECU turns ON the unlock relay output for 0.25 second, and unlocks all doors (including the tailgate).
Key reminder function <Vehicles with keyless entry system>
   
When the driver's door is opened with the ignition key inserted to the ignition cylinder and the door is locked (when the lock switch turns ON after turning OFF the unlock switch in the driver's door lock actuator), after approximately 0.3 second, ETACS-ECU turns ON the unlock relay output for 0.25 second to discourage the door lock operation so that the ignition key left in the ignition cylinder is prevented.
If the discouraging the door lock operation fails, the current supply will be retried. (The unlock relay output is turned ON for 0.25 second up to five times with one second interval.)
NOTE: The broken line in the graph indicates the current supply retry state if the discouraging door lock operation fails.
POWER WINDOW TIMER FUNCTION <EXCEPT VEHICLES FOR AUSTRALIA>
   
When the power window relay is turned ON with the ignition switch ON, the power window relay is kept ON for 30 seconds even after the ignition switch is turned OFF, enabling the door window to be opened and closed with the power window switch.
If the driver's door is opened during the timer operation, the power window relay is kept ON for 30 seconds from that time. However, when the driver's door is closed, the power window relay is turned OFF at the same time.
POWER WINDOW TIMER FUNCTION <VEHICLES FOR AUSTRALIA>
   
When the power window relay is turned ON with the ignition switch ON, the power window relay is kept ON for 30 seconds even after the ignition switch is turned OFF, enabling the door window to be opened and closed with the power window switch.
If the driver's or the front passenger door is opened during timer operation, the power window relay is turned OFF at the same time.
Sunroof timer function <Except vehicles for Argentina>
   
After turning OFF the ignition switch, the sunroof can be operated by the sunroof switch for approximately 30 seconds.
   
When the driver's door is opened during the sunroof timer operation, the sunroof timer operation will be extended for sunroof timer operation time at that time. <Except vehicles for Australia>
If the driver's door is closed during sunroof timer operation, the sunroof operation is canceled at the same time. <Except vehicles for Australia>
   
Opening the front door (LH or RH) during the sunroof timer operation cancels the sunroof operation.<Vehicles for Australia>
   
The hazard answer back function that allows checking the lock/unlock state of the door easily even in the daytime is installed. When the lock signal from the keyless entry transmitter is received into ETACS-ECU, all doors (including the tailgate) are closed, and the turn-signal lamp blinks twice. When the unlock signal is received, all doors (including the tailgate) are closed, and the turn-signal lamp blinks once.
NOTE: The answer back blink time can be adjusted by the adjustment function.
   
The room lamp blinks two times while locking the door for easy checking the keyless entry function. When the door is unlocked, the lamp lamps on for 15 seconds (100%), and turns off.
Intermittent control <Except vehicles for GCC> (the initial condition: with function)
   
ETACS-ECU calculates the intermittent time TI from the vehicle speed calculated from the windshield intermittent wiper volume of the column switch and the vehicle speed signals (engine-A/T-ECU), and sends it to the front ECU as SWS data.
NOTE: The vehicle speed sensing function can be invalidated by the adjustment function. <Vehicles with keyless entry system>
   
The front ECU determines the intermittent time TI from the input SWS data, and turns ON the windshield wiper drive signal. When the wiper comes to the stop position, the windshield wiper auto-stop signal is turned OFF, and the windshield wiper drive signal turns OFF.
When the intermittent time TI is elapsed after being turned ON the windshield wiper drive signal, the windshield wiper drive signal is turned ON again, and the above-mentioned operation is repeated.
INTERMITTENT CONTROL <VEHICLES FOR GCC>
   
ETACS-ECU calculates intermittent intervals TI based on outputs from the windshield intermittent wiper volume on the column switch, and transmits them to the front ECU as SWS data.
The front ECU determines the intermittent time TI from the input SWS data, and turns ON the windshield wiper drive signal. When the wiper comes to the stop position, the windshield wiper auto-stop signal is turned OFF, and the windshield wiper drive signal turns OFF.
When the intermittent time TI is elapsed after being turned ON the windshield wiper drive signal, the windshield wiper drive signal is turned ON again, and the above-mentioned operation is repeated.
Mist wiper control
   
When the windshield wiper mist switch of the column switch is turned ON while the ignition switch is ACC or ON, the column switch turns ON the windshield wiper drive signal. At the same time, the wiper speed switch relay turns to ON (HI). When the windshield mist wiper switch is ON, the windshield wiper operates at the high speed.
Low speed wiper and high speed wiper control
   
When the windshield low speed wiper switch of the column switch is turned ON while the ignition switch is ACC or ON, the column switch turns ON the windshield wiper drive signal. Also, the wiper speed switch relay turns to OFF (LO), and the windshield wiper operates at the low speed.
When the windshield high speed wiper switch is turned ON, the windshield wiper drive signal turns ON. Also, the wiper speed switch relay turns ON (HI), and the windshield wiper operates at the high speed.
Rear wiper control
   
  1. When the rear wiper switch on the column switch is turned ON with the ignition switch at the ACC or ON position, ETACS-ECU turns ON the rear wiper drive signal for 3 seconds (approximately 2 operations) and performs the intermittent action at 8-second intervals.
    When the selector lever is moved to R (reverse) position during the rear wiper operation, the inhibitor switch R (reverse) turns ON one second after that, ETACS-ECU sends the rear wiper drive signal for 3 seconds (approximately 2 operations), and operates the intermittent action in 8 seconds interval.
  1. By the special operation of the rear wiper switch on the column switch (successive 2-time operations), the rear wiper operates continuously regardless of the set intermittent time.
Headlamp washer control
   
When the headlamp relay (LO or HI) is ON with the ignition switch in the ACC or the ON position, turning on the headlamp washer switch on the column switch causes the front-ECU to turn on the headlamp washer relay for 0.8 seconds. When the headlamp washer relay becomes on, the headlamp washer motor operates to spray washer fluid onto the headlamps.
Headlamp automatic shutdown function <Except vehicles for Australia> (the initial condition: with function)
   
Even when the lighting switch (tail lamp switch or headlamp) is ON, the headlamp (including the tail lamps) turns off automatically with any of the following conditions to prevent the battery discharge caused by unattended operation.
  • If the ignition switch is turned OFF with the lighting switch ON, the lamp turns off automatically after 3 minutes. If the driver's door is opened during the 3 minutes, the lamp turns off after one second. (One seconds before turning off, the lamp remainder buzzer sounds. However, if the driver's door is opened with the ignition key inserted, the key remainder alarm buzzer operates in the first priority.)
After the headlamp automatic shutdown function, when the lighting switch is turned OFF and then ON or, the ignition switch is turned ON, the headlamp lights again.
NOTE: For vehicles with the keyless entry system, this function can be invalidated by the adjustment function.
   
When the turn-signal lamp switch is ON (LH or RH) with the ignition switch is ON, the turn-signal lamp output (flash signal) is turned ON.
If the lamp bulb of the front or rear turn-signal lamp has burned out, the flashing speed becomes faster to alert the driver that the lamp bulb has burned out.
   
When the hazard lamp switch input signal turning from OFF to ON is detected, the flashing states turns over by the signal. (When the hazard lamp is not blinking, it blinks. If it is blinking, it turns off.)
NOTE: 
  1. The push-return switch is adopted for the hazard lamp switch.
  1. Even if the lamp bulb has burned out, the flashing speed of the hazard lamp is not changed.
Front fog lamp control function <Vehicles with front fog lamp>
   
When the fog lamp switch is turned to ON with the tail lamp or the headlamp lit (the tail lamp switch or the headlamp switch is ON), the fog lamp relay turns ON, and the fog lamps light.
If the tale lamp or the headlamp is turned off with the lighting switch OFF while the fog lamps lit, the fog lamps turn off the same time to prevent unattended operation.
If the tail lamp is turned off by the headlamp automatic shutdown function, the fog lamps turn off at the same time. However, if the tail lamps light again, the fog lamps do not.
Rear fog lamp control function <Vehicles with rear fog lamp>
   
If the rear fog lamp switch is turned ON when the headlamp or the front fog lamp is turned ON, the rear fog lamp is switched ON and OFF alternatively.
If the headlamp and the front fog lamp, the rear fog lamp is turned OFF at the same time.
DIMMER INTERIOR LAMP CONTROL FUNCTION (THE INITIAL CONDITION: 15 SECONDS)
   
When the interior lamp switch is on the door position, ETACS-ECU controls the interior lamp lights as follows.
  1. When the ignition switch is OFF:
    By opening any door or tailgate lamps, the lamp turns ON (100%), and dims (65%) when the door or tailgate is closed, then and turns off after 15 seconds.
    However, when the ignition switch is turned ON or the door lock is operated curing the timer operation, the lamps turn off at that time.
  1. When the ignition switch is ON:
    By opening any door or tailgate lamps, the lamp (100%) turns ON and OFF when the door or tail gate is closed.
  1. When all doors and the tailgate are closed, and the ignition key is removed <Vehicles with keyless entry system>
    By removing the ignition key with all doors and the tailgate closed, the lamp turns ON 100% <Vehicles for GCC and Australia> or 65% <Except vehicles for GCC and Australia>, and turns off after 15 seconds.
    By inserting the ignition key again or operating the door lock with the lamp lit, the lamps turns off.
NOTE: For the vehicles with the keyless entry system, the delayed lamp-off time and the operation times of the keyless entry interior lamp answer back can be changed by the adjusting function.
Interior lamp automatic shutoff function <Vehicles with keyless entry system> (the initial condition: with function)
   
When the interior lamp such as the room lamp [all interior lamps connecting to the room lamp fuse (the front room lamp, the map lamp, the rear room lamp, and the ignition key cylinder illumination lamps)] is lit, but either one of the conditions is met, the interior lamp is turned out automatically for preventing the battery discharge caused by the unattended operation or the door-ajar.
  • After 30 minutes with the interior lamp lit while the ignition switch is OFF, the lamp turns off automatically.
  • After 30 minutes with any door switches opened while the ignition switch is OFF, the lamp turns off automatically.
After automatic shutoff function, the interior lamp turns ON when any of the following condition is met.
  • Open and close doors.
  • Operate the keyless entry transmitter.
  • Turn the ignition switch to ACC or ON.
NOTE: 
  1. The interior automatic shutoff function can be disabled or enabled by the adjusting function.
  1. After returning, the lamp turns off after 30 minutes, when the interior lamp automatic shutoff function is met.
Ignition key cylinder illumination lamp control function
   
The ignition key cylinder illumination lamp lights for 30 seconds when the driver's door is opened/closed with the ignition switch OFF. Also when the ignition key is removed from the ignition key cylinder, the lamp lights for 30 seconds. In any cases, the ignition key cylinder illumination lamp turns ON when the ignition switch is turned to ON.
   
When the ignition switch is turned to ON, the seat belt warning lamp flashes 4 times (over 6 seconds).
©2004 Mitsubishi Motors Corporation