FUNCTION AND CONTROL BY ETACS-ECU

The following functions are controlled by ETACS-ECU:

Function		Control ECU	Function description
Headlamp	Headlamp automatic-shutdown function	ETACS-ECU, front-ECU, column switch
	Daytime running lamp function <Vehicles with Daytime running lamp function>	ETACS-ECU, front-ECU, column switch
	Auto lamp function	ETACS-ECU, front-ECU, column switch, CAN converter-ECU
Flasher timer function	Turn-signal lamp	ETACS-ECU, column switch
	Hazard warning lamp
	Comfort flasher function
Fog lamp	Front fog lamp control	ETACS-ECU, front-ECU
Fog lamp	Rear fog lamp control	ETACS-ECU, front-ECU
Interior lamp (except glove box lamp and vanity mirror lamp)	Interior lamp and ignition key cylinder illumination lamp dimmer control function	ETACS-ECU
	Interior lamp automatic-shutoff function <Vehicles with keyless entry system>
	Foot lamp and ceiling lamp control function
Door mirror approach lamp	Approach lamp control function

HEADLAMP

HEADLAMP AUTOMATIC-SHUTDOWN FUNCTION (THE INITIAL CONDITION: WITH FUNCTION)

Even when the lighting switch (headlamp switch) 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.

While the headlamp illuminates, turn the ignition switch from ON to OFF and open the driver’s door for 1 second or longer, the headlamp and tail lamp are turned off automatically.

note The above control is activated only once after the ignition switch is turned from the "ON" position to the "OFF" position.

note If only the tail lamp illuminates, it is not turned off automatically.
While the headlamp illuminates, turn the ignition switch from "ON" to "OFF", and close the driver’s door for 3 minutes or longer, the headlamp and tail lamp are turned off automatically.
If the headlamp switch is turned ON while the ignition switch is in the "OFF" position, the automatic-shutdown function does not operate.

After the headlamp automatic-shutdown function, when the lighting switch (headlamp switch) is turned OFF and then ON or, the ignition switch is turned ON, the headlamps turn on again.

note

The automatic-shutdown function can be made by the customize function (Refer to

DAYTIME RUNNING LAMP FUNCTION <VEHICLES WITH DAYTIME RUNNING LAMP FUNCTION>

The front-ECU illuminates the low-beam headlamps when the ignition switch is turned "ON" with the headlamp switch is at the "OFF" or "TAIL" position. It illuminates the low-beam headlamps at a normal brightness when the headlamps are turned on with the daytime running lamp on.

AUTO LAMP FUCTION

For details of the auto lamp function, refer to

FLASHER TIMER FUNCTION

TURN-SIGNAL LAMP (THE INITIAL CONDITION: TURN-SIGNAL LAMP CAN BE OPERATED WHEN THE IGNITION SWITCH IS IN THE ON POSITION)

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.

note

Using a customisation function, this function becomes available even when the ignition switch is in the ACC position. For more information about the customisation feature, refer to

HAZARD WARNING LAMP

When the hazard warning lamp switch input signal turning from OFF to ON is detected, the flashing states turns over by the signal (When the hazard warning lamp is not blinking, it blinks. If it is blinking, it turns off).

note

The push-return switch is adopted for the hazard warning lamp switch.
Even if the lamp bulb has burned out, the flashing speed of the hazard warning lamp is not changed.

COMFORT FLASHER FUNCTION <THE INITIAL CONDITION: WITH FUNCTION (SWITCH ACCEPTANCE TIME: 0.4 SECOND OR LESS)>

With the ignition switch in the ON position, when the turn signal switch is turned ON momentarily (0.4 second or less), ETACS-ECU turns ON the turn signal lamp output, and flashes the turn signal lamp three times.

note

Using the customisation function, "with function/without function" of the comfort flasher function and the switch operation time can be set. For more information about the customisation function (Refer to Customise Function

FOG LAMP

FRONT FOG LAMP CONTROL

When the front 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 front fog lamp relay turns ON, and the front fog lamps turn on.
If the tail lamp or the headlamp is turned off with the lighting switch OFF while the front fog lamps lit, the front 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 front fog lamps turn off at the same time. However, if the tail lamps turn on again, the front fog lamps do not.

REAR FOG LAMP CONTROL

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 are turned OFF, the rear fog lamp is turned OFF at the same time.

INTERIOR LAMP

INTERIOR LAMP AND IGNITION KEY CYLINDER ILLUMINATION LAMP DIMMER CONTROL FUNCTION (THE INITIAL CONDITION: 15 SECONDS)

When the interior lamp switch is on the door position, ETACS-ECU controls the interior lamp and ignition key cylinder illumination lamp as follows.

When the ignition switch is OFF:
By opening any door or back door, the lamp turns ON (100%), and dims (60%) when the door or back door is closed, then and turns off after 15 seconds.
However, when the ignition switch is turned ON or the door lock is operated, the lamps turn off at that time.
When the ignition switch is ON:
By opening any door or back door, the lamp (100%) turns ON and OFF when the door or back door is closed.
When all doors and the back door are closed, and the ignition key is removed <Vehicles with keyless entry system>:
By removing the ignition key with all doors and the back door closed, the lamp turns ON 100%, 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

Using a customisation function, the room lamp delay time can be set. (Refer to

INTERIOR LAMP AUTOMATIC-SHUTOFF FUNCTION <VEHICLES WITH KEYLESS ENTRY SYSTEM> (THE INITIAL CONDITION: 30 MINUTES)

When the interior lamp such as the room lamp [all interior lamps connecting to the room lamp fuse (the front room lamp, the rear personal lamp, the luggage compartment lamp, the ignition key cylinder illumination lamps, foot lamp and ceiling lamp)] is lit, but either one of the conditions is met, the interior lamp is turned off 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 opened while the ignition switch is OFF, the lamp turns off automatically.

After automatic shut-off 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

The interior lamp automatic shut-off time can be adjusted by the customize function (Refer to

FOOT LAMP AND CEILING LAMP CONTROL FUNCTION

The foot lamp and ceiling lamp turn on/off as follows.

When the ignition switch (IG1) is ON, the foot lamp and ceiling lamp always illuminate. When the interior lamp switch of the front room lamp is turned to OFF, they turn off.
When the ignition switch (IG1) is turned from ON to OFF, the foot lamp and ceiling lamp illuminate for 15 seconds.
When the interior lamp switch of the front room lamp is turned to ON, the foot lamp and ceiling lamp turn on.
With the ignition switch (IG1) and the interior lamp switch of the front room lamp being OFF, if any one of the doors is open, the foot lamp and ceiling lamp illuminate. Then, the foot lamp and ceiling lamp turn off 30 seconds after all the doors are closed.
When the unlock relay is turned ON and the driver’s door is unlocked while the ignition switch (IG1) and the interior lamp switch of the front room lamp is OFF and all the doors are closed, the foot lamp and ceiling lamp illuminate for 15 seconds. With this state, when the lock relay is turned ON, the foot lamp and ceiling lamp turn off.
With the interior lamp automatic-shutoff function, the foot lamp and the ceiling lamp turn off. (For about the interior lamp automatic-shutoff function, refer to .)

note

When the foot lamp and the ceiling lamp are turned on/off using the interior lamp switch of the front room lamp, or when the foot lamp and the ceiling lamp are turned on by turning ON the ignition switch (IG1), the foot lamp and the ceiling lamp illumination time timer will be reset.

DOOR MIRROR APPROACH LAMP

APPROACH LAMP CONTROL FUNCTION

With the ignition switch (IG1) being OFF, if any of the doors is opened, the approach lamp illuminates. Then, the approach lamp turns off as follows.

When all the doors are closed within 150 seconds after any one of the doors has been opened, the approach lamp turns off in 30 seconds.
When 150 seconds has elapsed after any one of the doors was opened, the approach lamp turns off.

With the ignition switch (IG1) being OFF, if the unlock relay is turned ON by the central door locking system and the driver’ s door becomes the unlock state, the approach lamp illuminates for 15 seconds. With this state, if the lock relay is turned ON, the approach lamp turns off.