General Description
TONE ALARM
GENERAL DESCRIPTION CONCERNING TONE ALARM
The ECU related to the alarm function types and various control functions are as follows.
IGNITION KEY REMINDER TONE ALARM FUNCTION
When the driver's door is opened with the ignition key inserted in the ignition key cylinder (ignition switch is in the OFF position,) the tone alarm sounds intermittently (horn sound) to indicate that the ignition key has not been removed.
LIGHT REMINDER TONE ALARM FUNCTION
When the taillight or headlight is ON, if the ignition key is removed and the driver's door is opened, a tone alarm will sound continuously to warn that the light is illuminated. However, if the taillight or headlight has been turned off by the headlight automatic-shutdown function, the tone alarm will not sound.
Seat belt tone alarm function
If any of the following conditions is met with the ignition switch at "ON" or "ST", the ETACS-ECU sounds the tone alarm by using the driver's seat belt switch signal and the vehicle speed signal.
- Sounds the tone alarm for six seconds when the ignition switch is turned "ON" with the seat belt switch on (the driver's seat belt is not fastened) (timer operation).
- Sounds the tone alarm 12 cycles (after 0.48 seconds) if any of the following conditions is met when 60 seconds or more have elapsed since the ignition switch is turned "ON". One cycle consists of 5 seconds "on" and then 2.8 seconds "off".
NOTE: Once the tone alarm has sounded 12 cycles, it does not sound again until the vehicle speed reduces to 3 km/h (2 mph) or less even if any of the following conditions is met.
a. The vehicle speed has reached 8 km/h (5 mph) while the seat belt switch is turned on (driver's seat belt is not fastened) with the ignition switch "ON.
b. The seat belt switch has been turned on (driver's seat belt has not been fastened) for at least ten seconds while the ignition switch has been turned "ON" and the vehicle speed has been 8 km/h (5 mph) or more.
The tone alarm stops sounding if the ignition switch or the seat belt switch is turned off (the driver's seat belt is fastened) while the timer operation is active.
CENTRAL DOOR LOCKING SYSTEM
GENERAL DESCRIPTION CONCERNING THE CENTRAL DOOR LOCKING SYSTEM
The following ECUs affect the functions and control of the central door locking system.
DOOR LOCK FUNCTION
OPERATING THE DRIVER'S DOOR LOCK KEY CYLINDER
When you insert the ignition key to the driver's door lock key cylinder and turn the key clockwise to lock the door, the ETACS-ECU energizes its door lock relay for 0.25 second to activate all the door lock actuators. Then all the doors will be locked.
OPERATING THE DRIVER'S OR FRONT PASSENGER'S DOOR LOCK SWITCH
When the door is locked by driver's or front passenger's door lock switch, the ETACS-ECU energizes its door lock relay for 0.25 second to activate all the door lock actuators. Then all the doors will be locked.
DOOR UNLOCK FUNCTION
OPERATING THE DRIVER'S DOOR LOCK KEY CYLINDER
When you insert the ignition key to the driver's door lock key cylinder and turn the key counterclockwise to unlock the door, the ETACS-ECU energizes its door unlock relay for 0.25 second to activate only the driver's door lock actuator. Then only the driver's door will be unlocked. When you turn the key counterclockwise again, the ETACS-ECU energizes its door unlock relay for 0.25 second to activate all the door lock actuator. Then all the doors will be unlocked.
OPERATING THE DRIVER'S OR FRONT PASSENGER'S DOOR LOCK SWITCH
When the door is unlocked by driver's or front passenger's door lock switch, the ETACS-ECU energizes its door unlock relay for 0.25 second to activate all the door lock actuators. Then all the doors will be unlocked.
POWER WINDOWS
GENERAL DESCRIPTION CONCERNING THE POWER WINDOWS
The following ECUs affect the functions and control of the power windows.
POWER WINDOW MAIN SWITCH FUNCTION
RAISES THE DRIVER'S POWER WINDOW
When the front (LH) switch on the power window main switch is pulled up, the system energizes its respective power window regulator motor, and then the driver's window glass rises.
LOWER THE DRIVER'S POWER WINDOW
When the front (LH) switch on the power window main switch is pushed down, the system energizes its respective power window regulator motor, and then the driver's window glass lowers.
LOWERS THE DRIVER'S POWER WINDOW BY ONE-TOUCH FUNCTION
When the front (LH) switch on the power window main switch is pushed down fully, the system energizes its respective power window regulator motor, and then the driver's window glass moves to its lowest position.
RAISES THE PASSENGER'S OR REAR DOOR POWER WINDOW
When the front (RH) or rear (LH or RH) switch on the power window main switch is pulled up, the system energizes its respective power window regulator motor, and then the passenger's or rear door window glass rises.
LOWERS THE PASSENGER'S OR REAR DOOR POWER WINDOW
When the front (RH) or rear (LH or RH) switch on the power window main switch is pushed down, the system energizes its respective power window regulator motor, and then the passenger's or rear door window glass lowers.
POWER WINDOW SUB SWITCH FUNCTION
RAISES THE PASSENGER'S OR REAR DOOR POWER WINDOW
When the power window sub switch (FRONT) or power window sub switch (REAR: LH or RH) is pulled up, the system energizes its respective power window regulator motor, and then the passenger's or rear door window glass rises.
LOWERS THE PASSENGER'S PASSENGER'S OR REAR DOOR POWER WINDOW
When the power window sub switch (front) or power window sub switch (REAR: LH or RH) is pushed down, the system energizes its respective power window regulator motor, and then the passenger's or rear door window glass lowers.
POWER WINDOW TIMER FUNCTION
When the ignition switch is turned to the "ON" position, the power window relay is turned ON. After the ignition switch is turned OFF, the system continues to turn ON the power window relay for about 30 seconds and to enable the opening and closing of the door window by the power window switch. When the driver's or front passenger's door is opened while the timer is in operation, the power window relay will be turned OFF.
KEYLESS ENTRY SYSTEM
GENERAL DESCRIPTION CONCERNING KEYLESS ENTRY SYSTEM
The following ECUs affect the functions and control of the keyless entry system.
ALL DOOR LOCK FUNCTION
OPERATING THE TRANSMITTER LOCK BUTTON
When the transmitter lock button is pressed, the ETACS-ECU energizes its door lock relay to operate all the door lock actuators for 0.25 second thus causing all doors to be locked.
DRIVER'S DOOR UNLOCK FUNCTION
OPERATING THE TRANSMITTER UNLOCK BUTTON PRESS ONCE
When the transmitter unlock button is pressed once, the ETACS-ECU energizes its door unlock relay to operate the door lock actuator of the driver's door for 0.25 second thus causing only the driver's door to be unlocked.
ALL DOOR UNLOCK FUNCTION
OPERATING THE TRANSMITTER UNLOCK BUTTON PRESS TWICE
When the transmitter unlock button is pressed twice, the ETACS-ECU energizes its door unlock relay to operate the driver's door lock actuator and the other door lock actuators for 0.25 second each in succession. Then, the doors will be unlocked.
KEYLESS ENTRY HAZARD ANSWER BACK AND HORN ANSWER BACK FUNCTION
The hazard answerback and horn answerback function which facilities checking of lock or unlock operations even during daytime is provided. When the lock signal is input from the keyless entry transmitter to the ETACS-ECU, the hazard warning light flashes twice and horn sounds once. When the unlock signal is input, hazard warning light flashes once.
NOTE: Hazard answerback function can be disabled by the configuration function.
TIMED LOCKING MECHANISM
After unlocking the doors with the keyless entry transmitter, if no doors are opened or if the ignition key is not inserted, the ETACS-ECU automatically locks the doors after 30 seconds.
NOTE: When the door is opened, the timer lock function and the answerback function do not work. (hazard warning light, dome light and horn)
NOTE: When the door is closed, the dome light illuminates as the answerback function.
NOTE: Enabling/disabling the hazard warning light flashing, the horn sounding in accordance with the keyless entry transmitter switch operation.
SUNROOF
GENERAL DESCRIPTION CONCERNING THE SUNROOF
The following ECUs affect the functions and control of the sunroof.
SUNROOF TIMER FUNCTION
The ETACS-ECU enables opening and closing of the sunroof for 30 seconds after the ignition is switched off. During this timed operation, if the driver's door is opened, the sunroof timer function is deactivated from that moment. As for the sunroof functions, refer to Sunroof.
WINDSHIELD WIPER AND WASHER
GENERAL DESCRIPTION CONCERNING THE WINDSHIELD WIPER AND WASHER
The following ECUs affect the functions and control of the windshield wiper and washer.
WINDSHIELD WIPER AND WASHER CONTROL FUNCTION
INTERMITTENT CONTROL (VEHICLE SPEED-DEPENDENT VARIABLE TYPE)
The ETACS-ECU calculates the intermittent time according to the vehicle speed calculated from the windshield wiper intermittent time adjusting knob and vehicle speed signal (ECM) and sends it to the front ECU as SWS data.
NOTE: The vehicle speed-dependent function can be disabled by the adjustment procedures of SWS function.
The front-ECU determines the intermittent time T1 from the input SWS data signal, and turns ON the windshield wiper drive signal. When the wiper is at the STOP position, the windshield wiper auto-stop signal goes OFF to turn OFF the windshield wiper drive signal. After the intermittent time TI seconds from the windshield wiper drive signal turned ON, the windshield wiper drive signal is turned ON again and the above operation is repeated.
When the ignition switch is at the ACC or ON position, if the windshield mist wiper switch is turned ON, the front-ECU turns ON the windshield wiper drive signal. At the same time, the wiper speed switching relay is turned ON (HIGH). While the windshield mist wiper switch is ON, the windshield wiper will operate at high speed. Then, if the windshield mist wiper switch is turned off, the wiper operates at low speed until it stops at the predetermined park position.
When the windshield mist switch is turned on briefly, the wiper operates at low speed once. At the point the windshield mist switch is turned ON, if the windshield wiper has been operating intermittently, the same operations as the above will be performed while the windshield mist wiper switch is ON. After the windshield mist wiper switch goes OFF, the intermittent operations will be set again l second after the windshield wiper auto-stop signal is turned ON last.
LOW SPEED WIPER, HIGH SPEED WIPER CONTROL
When the ignition switch is at the ACC or ON position, if the windshield low speed wiper switch is turned ON, the front-ECU turns ON the windshield wiper drive signal, turns OFF (LOW) the windshield wiper speed switching relay, and operates the windshield wiper at low speed. Next, when the windshield high speed wiper switch is turned ON, the windshield wiper drive signal is turned ON, the windshield wiper speed switching relay is turned ON (HIGH), and the windshield wiper is operated at high speed.
WASHER CONTROL
When the ignition switch is at the ACC or ON position, if the windshield washer switch is turned ON, the front-ECU turns ON the windshield washer relay. The windshield wiper drive signal is turned ON in 0.3 seconds until 3 seconds after the windshield washer switch goes OFF to operate the windshield wiper continuously. When the windshield washer switch is turned ON, if the windshield wiper is operating intermittently, intermittent operations will be continued after continuous operations.
NOTE: The wiper drive signal output time varies according to the conditions. Refer to the table for details.
REAR WIPER AND WASHER
GENERAL DESCRIPTION CONCERNING THE REAR WIPER AND WASHER
The following ECUs affect the functions and control of the rear wiper and washer.
REAR WIPER AND WASHER CONTROL FUNCTION
REAR WIPER CONTROL
If the rear wiper switch is turned ON with the ignition switch in the ACC or ON position, the ETACS-ECU will turn the rear wiper drive signal ON for 3 seconds (approximately 2 operations), and then will carry out intermittent operation in a 7.4 to 8 seconds cycle.
If the shift lever is moved to the reverse "R" position when the rear wiper switch is turned ON and the ignition switch is in any position other than OFF, the backup light switch turns ON. One second later, the ETACS-ECU turns the rear wiper drive signal ON for 3 seconds (approximately 2 operations), to clear the rear view, and then returns to intermittent operation at a 7.4 to 8 seconds cycle.
REAR WASHER CONTROL
When the ignition switch is at the ACC or ON position, if the rear washer switch is turned ON, the ETACS-ECU turns ON the rear washer relay. The rear wiper drive signal is turned ON in 0.3 seconds until 3.0 seconds after the rear washer switch goes OFF to operate the rear wiper continuously.
If the rear wiper is in intermittent operation when the rear washer switch is turned ON, 7.4 seconds after the rear wiper drive signal turns OFF, the 8.0 seconds cycle intermittent operation will continue.
SEAT BELT WARNING LIGHT
GENERAL DESCRIPTION CONCERNING THE SEAT BELT WARNING LIGHT
The ECU related to the seat belt warning light function is as follows.
SEAT BELT WARNING LIGHT FUNCTION
If any of the following conditions is met with the ignition switch at "ON" or "ST", the ETACS-ECU illuminates or extinguishes the seat belt indicator by using the driver's seat belt switch signal and the vehicle speed signal.
- The seat belt switch is turned on (driver's seat belt is not fastened) with the ignition switch at "ON"or"ST".
- Flashes the indicator 11 cycles (after 0.48 seconds) if any of the following conditions is met when 60 seconds or more have elapsed since the ignition switch is turned "ON", and then illuminates it for eight seconds. One cycle consists of 5 second "on" and then 2.8 second "off".
a. The vehicle speed has reached 8 km/h (5 mph) while the seat belt switch is turned on (driver's seat belt is not fastened) with the ignition switch "ON.
b. The seat belt switch has been turned on (driver's seat belt has not been fastened) for at least ten seconds while the ignition switch has been turned "ON" and the vehicle speed has been 8 km/h (5 mph) or more.
NOTE: Once this timer operation has been activated, it will not be activated again until the vehicle speed reduces to 3 km/h (2 mph) or less even if any of the following conditions is met.
- The indicator stops illuminating if the ignition switch or the seat belt switch is turned off (the driver's seat belt is fastened) while the timer operation is active.
HEADLIGHT AND TAILLIGHT
GENERAL DESCRIPTION CONCERNING THE HEADLIGHT AND TAILLIGHT
The ECU related to the headlight and taillight and various control functions are as follows.
TAILLIGHTS AND HEADLIGHTS ILLUMINATION
TAILLIGHT
The front ECU will light up the taillight when the taillight switch signal from the column switch is in the ON state and the built-in taillight replay is in the ON state.
NOTE: This item only considers the taillight light up function and does not take into consideration the other functions. In actual driving, the taillights may be turned off due to the headlight automatic shut-down function. For the details of the headlight automatic shut-down function, refer to its Section.
Headlights and high-beam indicator light
The front ECU lights up the headlight (LOW) when the signal from the column switch to the headlight switch is in the "ON" state and the built-in head light relay (LOW) is in the ON state. If the dimmer switch is turned on while the headlight relay (LOW) is on, the front-ECU turns on the headlight relay (HIGH), causing the high-beam headlights to illuminate.
What's more, ETACS-ECU lights up the high beam indicator light when the acknowledgment signal from the front ECU is in the "HI-BEAM ACK" state or the head light switch signal from the column switch is in the "PASS" state.
NOTE: This item only considers the headlight light up function and doesn't take into consideration the other functions. In actual driving, the headlights may be turned off due to the headlight automatic shut-down function. For the details of the headlight automatic shut-down function, refer to its Section.
HEADLIGHT AUTOMATIC-SHUTDOWN FUNCTION
Even if the lighting switch (taillight switch or headlight switch) is ON, the head light (including the taillights) will automatically go off in the following conditions to prevent the battery from discharging as a result of forgetting to turn off lights. When the ignition key is turned from ON to LOCK (OFF) or ACC position with the lighting switch turned ON, and this state continues for three minutes, the light will automatically be turned off. If the driver's seat door is opened during these three minutes, the light will go off one second later.
NOTE: This function can be disabled by the configuration function.
DIMMER AUTOMATIC RESET FUNCTION
The column switch (column ECU) resets the dimmer switch and prevents the high beam from lighting up when turning on the headlight again if the headlight switch is put in the OFF position while the high beam of the headlight is on (including the instance when the dimmer switch is erroneously put in the ON state upon passing operations) and resets the dimmer switch.
FLASHER TIMER
GENERAL DESCRIPTION CONCERNING THE FLASHER TIMER
The ECU related to the alarm function types and various control functions are as follows.
FLASHER TIMER FUNCTION
TURN-SIGNAL LIGHT
The turn-signal light output (flashing signal) is turned ON when the turn-signal light ignition switch is ON and the turn-signal light switch is ON (LH or RH.) If the front turn-signal light or rear turn-signal light bulb has burned out, the flashing speed increases to indicate that the bulb has burned out.
HAZARD WARNING LIGHT
The hazard warning lights output (flashing) is turned ON when the hazard switch is turned OFF to ON. When the switch is turned ON again, the output is turned OFF.
NOTE: The hazard warning light switch is a push-return type toggle switch.
FOG LIGHT
GENERAL DESCRIPTION CONCERNING FOG LIGHT
The following ECUs affect the functions and control of the fog lights and fog light indicator light.
FOG LIGHT AND FOG LIGHT INDICATOR LIGHT
If the ETAS-ECU sends a fog light "ON" request signal to the front-ECU after the low-beam headlights are on, the fog light relay is turned on, allowing the fog lights and the fog light indicator light to be illuminated. If the low-beam headlights are turned off, the fog lights will also be turned off automatically. Therefore, when the headlights are turned on at next opportunity, the fog lights will not illuminate.
If the high-beam headlights are turned on while the fog lights are on, the fog lights will be turned off. Then, if you switch the headlights from the high-beam to the low-beam, the fog lights will be turned on again.
NOTE: This description covers the fog lights only. In actual driving, the fog lights may be turned off due to the headlight automatic shut-down function. For the details on the headlight automatic shut-down function, Refer to General Description Concerning the Headlight and Taillight
INTERIOR LIGHT
GENERAL DESCRIPTION CONCERNING THE INTERIOR LIGHT
The ECU related to the interior light function types and various control functions are as follows.
DOME LIGHT CONTROL FUNCTION
When the dome light switch is at the door position, the ETACS-ECU controls the lighting of the dome light as follows:
- When a door is opened with the ignition switch off, the dome light lights up at a luminance of 100 percent. When a door is closed, the dome light dims at a luminance of 65 percent, and goes off 30 seconds later. However if the ignition switch is turned ON or if all doors are locked while they are closed, the dome light will go off at that point.
- When a door is opened with the ignition switch ON, the dome light lights up at a luminance of 100 percent. When a door is closed, the dome light goes off.
- When the ignition key is removed with all doors closed, the dome light lights up at a luminance of 100 percent, and goes off 30 seconds later. How- ever if the ignition key is inserted again or if all doors are locked while the dome light is lighting, the dome light will go off at that point.
- The dome light is flashed twice when door is locked with keyless entry. When door is unlocked with keyless entry, the dome light lights at a luminance of 100 percent, and goes off 15 seconds later.
NOTE: The dotted lines indicate that lighting mode when the ignition switch is turned ON, all doors are locked during the timer illumination time.
INTERIOR LIGHT AUTOMATIC-SHUTDOWN FUNCTION
Illuminated interior lights such as the front dome light, etc. (all lights using the dome light fuse as the power supply) will automatically go off in the following conditions to prevent excess battery discharge as a result of forgetting to turn off the lights or incomplete closing of the door.
- When the ignition switch is turned off and more than 30 minutes pass by with the interior light illuminated, the interior lights will go off automatically.
- When the ignition switch is turned off and any door switch remains open for 30 minutes continuously, the interior lights will go off automatically.