Part 3
INTERIOR LIGHT
GENERAL DESCRIPTION CONCERNING THE INTERIOR LIGHT
The following ECUs affect the functions and control of the interior lights.
INTERIOR LIGHT CONTROL FUNCTION
The ETACS-ECU makes it possible to force operation of ON and OFF light switches in the overhead console (the dome light, reading light, cargo area light, rear personal lights, front door lights, and front foot lights). This function is assigned higher priority than the controls for the interior light switch that are performed when the doors are opened or closed.
- When the lights are forced on, the illumination level is 100% as all cabin lights are switched on (the dome light, reading light, cargo area light, rear personal lights, front door lights, and front foot lights).
- Even when all lights are forced on, the interior light automatic shutoff function is active. When the lights are forced off, all cabin lights are immediately switched off (the dome light, reading light, cargo area light, rear personal lights, front door lights, and front foot lights).
The ETACS-ECU controls the interior lights by turning them on and off in the following way:
- When a door is opened with the ignition switch off, the interior lights turn on with luminance of 100 percent. When the door is closed, the interior lights dim to 65 percent, and go off 30 seconds later. However if the ignition switch is turned ON or if a door is locked while the interior lights is dimming, the dome light will go off at that point.
- When a door is opened with the ignition switch ON, the interior lights up at a luminance of 100 percent. When the door is closed, the interior lights go off.
- When the ignition key is removed with all doors closed, the interior lights up at a luminance of 100 percent, and goes off 30 seconds later. However if the ignition key is inserted again or if a door is locked while the interior lights is lighting, the interior lights will go off at that point.
- To check keyless entry operations more easily, the interior lights are flashed once when the doors are locked. When the doors are unlocked, the interior lights at a luminance of 100 percent, and go off 15 seconds later.
NOTE: The dimmer function can be customized on vehicles equipped with a multi-center display (middle grade type).
NOTE: The dotted lines indicate that lighting mode when the ignition switch is turned ON, door is locked, or any door is opened during the timer illumination time.
INTERIOR LIGHT AUTOMATIC-SHUTOFF 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 the battery from discharging 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 with the interior light illuminated, the interior lights will go off automatically.
- When the ignition switch is turned off and one of the door switches remains open for 30 minutes continuously, the interior lights will go off automatically.
NOTE: The interior light automatic shutoff function can be customized on vehicles equipped with a multi-center display (middle grade type).
IGNITION KEY HOLE ILLUMINATION LIGHT FUNCTION
The ignition key hole illumination light illuminates when the driver's door is opened with the ignition switch off, and for 30 seconds after the driver's door is closed. It also illuminates for 30 seconds after the ignition key is pulled out. In any case, it goes out when the ignition switch is turned on.
DOOR AJAR INDICATOR
The combination meter receives the signal sent from the ETACS-ECU about whether each door (including the tailgate and glass hatch) is open or closed and turns the door ajar indicator on and off. While the door ajar indicator is illuminated, the door ajar warning function is activated and the door ajar indicator flashes 4 times. If the door remains open even after the 4 warning flashes, the door ajar indicator will be illuminated again.
SEAT BELT INDICATOR
If any of the following conditions is met with the ignition switch at "ON" or "ST", the ETACS-ECU illuminates, flashes or extinguishes the seat belt indicator by using the driver's seat belt switch signal and the vehicle speed signal sent from the combination meter.
- Illuminates when the ignition switch is at "ON" and the seat belt switch is turned on (the driver's seat belt is unfastened).
- Flashes and illuminates the indicator 12 cycles (after 0.5 seconds) if any of the following conditions is met when sixty seconds or more have elapsed since the ignition switch is turned "ON". One cycle consists of five-second "flashing" and then three-second "illumination".
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.
General Circuit Diagram For Interior Lights Part 1:
General Circuit Diagram For Interior Lights Part 2:
General Circuit Diagram For Interior Lights Part 3:
GENERAL CIRCUIT DIAGRAM FOR INTERIOR LIGHTS
KEYLESS ENTRY SYSTEM
GENERAL DESCRIPTION CONCERNING THE KEYLESS ENTRY SYSTEM
The given ECUs affect the functions and control of the keyless entry system.
ALL DOOR LOCK FUNCTION
PRESSING THE TRANSMITTER LOCK SWITCH
When the transmitter lock switch is pressed, the ETACS-ECU energizes its door lock relay to operate all the door lock actuators for 0.25 second, locking all doors.
DRIVER'S DOOR UNLOCK FUNCTION
PRESSING THE TRANSMITTER UNLOCK SWITCH
ONCE When the transmitter unlock switch 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 seconds, thus unlocking only the driver's door.
ALL DOOR UNLOCK FUNCTION
PRESSING THE TRANSMITTER UNLOCK SWITCH TWICE
When the transmitter unlock switch 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 seconds each in succession. All the doors will be unlocked.
NOTE: If the timed locking function is available, the doors will be locked in 30 seconds after the initial unlocking. Therefore, the second door unlocking should be done within 30 seconds after that initial unlocking.
KEYLESS ENTRY HAZARD ANSWER BACK AND HORN ANSWER BACK FUNCTION
KEYLESS ENTRY HAZARD ANSWER BACK FUNCTION*1
If the keyless entry transmitter is used to send a lock signal to the ETACS-ECU, all doors, the liftgate, and the glass hatch are locked and the hazard warning lights flash once. If an unlock signal is sent, the driver's door is unlocked first,*2 and if a second signal is sent, all doors, the liftgate, and the glass hatch are unlocked. Each time the unlock signal is sent, the hazard warning lights flash twice.
NOTE: *1: The hazard answerback function can be customized using the keyless entry transmitter (Refer to Body, Keyless Entry System) or by using the multi-center display (middle grade type).
NOTE: *2: Vehicles with a multi-center display (middle grade type) can be customized so that a single unlock operation will unlock all doors.
KEYLESS ENTRY HORN ANSWER BACK FUNCTION
If the keyless entry transmitter is used to send a driver's door lock signal to the ETACS-ECU, the tone alarm sounds when the ETACS-ECU receives the lock signal.
NOTE: The horn answerback function can be customized by using the keyless entry transmitter (Refer to Body, Keyless Entry System) or by using the multi-center display (middle grade type).
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: The timed locking function can be customized on vehicles equipped with a multi-center display (middle grade type).
General Circuit Diagram For The Keyless Entry System:
GENERAL CIRCUIT DIAGRAM FOR THE KEYLESS ENTRY SYSTEM
POWER WINDOWS
GENERAL DESCRIPTION CONCERNING THE POWER WINDOWS
The given ECUs affect the functions and control of the power windows.
POWER WINDOW MAIN SWITCH FUNCTION
The main switch is located on the driver's door.
RAISES THE DRIVER'S POWER WINDOW
When the driver's power window switch on the power window main switch is pulled up, the system energizes its respective power window motor, and then driver's window glass rises.
LOWERS THE DRIVER'S POWER WINDOW
When the driver's power window switch on the power window main switch is pushed down, the system energizes its respective power window motor, and then driver's window glass lowers.
LOWERS THE DRIVER'S POWER WINDOW BY ONE-TOUCH DOWN FUNCTION
When the driver's power window switch on the power window main switch is pushed down fully, the system energizes its respective power window motor, and then driver's window glass moves to its lowest position.
RAISES THE PASSENGER'S POWER WINDOW
When the passenger's power window switch on the power window main switch is pulled up, the system energizes its respective power window motor, and then passenger's window glass rises.
LOWERS THE PASSENGER'S POWER WINDOW
When the passenger's power window switch on the power window main switch is pushed down, the system energizes its respective power window motor, and then passenger's window glass lowers.
POWER WINDOW SUB SWITCH FUNCTION
The sub switches are located on the passenger's doors.
RAISES THE PASSENGER'S POWER WINDOW
When the power window sub switch is pulled up, the system energizes its respective power window motor, and then the passenger's window glass rises.
LOWERS THE PASSENGER'S POWER WINDOW
When the power window sub switch is pushed down, the system energizes its respective power window motor, and then the passenger's window glass lowers.
POWER WINDOW TIMER FUNCTION
Even after the ignition is switched off, the ETACS-ECU keeps the power window relay activated for approximately 30 seconds, enabling raising and lowering of the power windows by using the power window switches. After approximately 30 seconds, the power window relay is deactivated.
During this timed operation, if the driver or passenger doors are opened, the power window relay is deactivated from that moment.
General Circuit Diagram For The Power Windows:
GENERAL CIRCUIT DIAGRAM FOR THE POWER WINDOWS
REAR WIPER AND WASHER
GENERAL DESCRIPTION CONCERNING THE REAR WIPER AND WASHER
The given ECUs affect the functions and control of the rear wiper and washer.
REAR WIPER AND WASHER CONTROL FUNCTION
Rear Wiper Control:
REAR WIPER CONTROL
Rear wiper activity is prevented by the ETACS-ECU when the glass hatch is open. Rear wiper operation is permitted 3 seconds after the glass hatch is closed. The rear wiper is operated twice consecutively by the ETACS-ECU when the rear wiper is switched on if the glass hatch is closed and the ignition is switched to ACC or ON. After that, operation continues at 8-second intervals. If the rear wiper is switched off during the two consecutive operations, operation will be stopped at that moment.
During rear wiper operation, the ETACS-ECU operates the rear wiper consecutively when the selector lever is in the "R" position.
NOTE: The rear wiper interval can be customized on vehicles equipped with a multi-center display (middle grade type).
Rear Washer Control:
REAR WASHER CONTROL
Rear wiper activity is prevented by the ETACS-ECU when the glass hatch is open. Rear wiper operation is permitted 3 seconds after the glass hatch is closed.
The rear washer is operated by the ETACS-ECU when the rear washer is switched on if the glass hatch is closed and the ignition is switched to ACC or ON. Holding the rear washer switch on for more than 0.9 second will trigger the rear wiper to operate until the rear washer is switched off, at which time it will stop operating after 3 seconds.
General Circuit Diagram For Rear Wiper And Washer:
GENERAL CIRCUIT DIAGRAM FOR REAR WIPER AND WASHER
SUNROOF
GENERAL DESCRIPTION CONCERNING THE SUNROOF
The given ECU affects 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 or passenger's door is opened, the sunroof timer function is deactivated from that moment.
General Circuit Diagram Regarding The Sunroof:
GENERAL CIRCUIT DIAGRAM REGARDING THE SUNROOF
THEFT-ALARM SYSTEM
GENERAL DESCRIPTION CONCERNING THE THEFT-ALARM SYSTEM
The given ECUs affect the functions and control of the theft-alarm function.
THEFT-ALARM SYSTEM
ARMED STAGE
Park the vehicle and stop the engine. Arm the system as described below:
- Remove the key from the ignition switch.
- Make sure that the engine hood is closed.
- Lock all doors and the liftgate and glass hatch using power door lock switch, the remote control transmitter, or using the key. After completion of the steps above, the theft-alarm indicator will illuminate for approximately 20 seconds and then continuously blink on and off, indicating that the system is armed.
NOTE:
- The system will be armed even if the engine hood is open, but when the system is set, be sure that the engine hood is closed.
- The system will be disarmed if, while the theft-alarm indicator (located in the front center of the dashboard) is illuminated, all doors or the liftgate and glass hatch are unlocked by transmitter or using the key.
- The system will be disarmed if, while the theft-alarm indicator is illuminated, the ignition key is turned to the "ON" or "ACC".
- The system will not be armed if a door is not completely closed. Ensure that all the doors, glass hatch, liftgate are closed, and arm the system again as described above.
- Ensure that all passengers exit the vehicle before arming the system. If the driver arms system with passengers in the vehicle, the alarm will be activated when the passengers open the door.
DISARMED STAGE
The system will be disarmed when either of the following steps are taken:
- All doors or the liftgate and glass hatch are unlocked by the transmitter or using the key.
- The ignition key is turned to "ACC" or "ON".
- If the UNLOCK button is pressed when all doors and the liftgate and glass hatch are closed and no door is opened within approximately 30 seconds, re-arming will automatically occur.
NOTE: Once the system has been disarmed, it cannot be rearmed except by repeating the arming procedure.
ALARM STAGE
The alarm will be activated if any of the following occur while the vehicle is parked and the system is armed:
- One of the doors or the liftgate and glass hatch is opened without the transmitter or using the key.
- The engine hood is opened from the outside or inside.
TYPE OF ALARM
When the alarm is activated:
- The headlights blink on and off for approximately 3 minutes. After approximately 3 minutes the headlights automatically shut off.
- The horn will sound intermittently for approximately 3 minutes.
NOTE: The alarm will continue to operate for approximately 3 minutes. At the end of that period, the alarm will automatically shut off. The system will then be rearmed until the proper disarming step is taken.
ALARM DEACTIVATION
The alarm can be deactivation in the following ways.
- By turning the key (in the driver's door) in either direction (toward lock or unlock).
- By using the transmitter to lock or unlock the door or the liftgate and glass hatch.
TESTING THE THEFT-ALARM SYSTEM
Use the following procedure to test the system:
- Lower the driver s window.
- Arm the system as explained in "Armed stage"
- Make sure that the theft-alarm indicator comes on and flashes in approximately 20 seconds.
- Wait a few seconds and then unlock the driver's side door by using the inside door lock knob and open the door.
- Check to be sure that the horn sounds intermittently and the headlights blink on and off when the door is opened.
- Disarm the system by unlocking doors or the liftgate and glass hatch by the transmitter or using the key.
NOTE: To make sure the alarm sounds when the engine hood is opened, open the engine hood by using the engine hood release lever when the system is in the "armed" stage.
General Circuit Diagram For The Theft-alarm Part 1:
General Circuit Diagram For The Theft-alarm Part 2:
General Circuit Diagram For The Theft-alarm Part 3:
GENERAL CIRCUIT DIAGRAM FOR THE THEFT-ALARM
TONE ALARM
General Description Concerning The Tone Alarm Function:
GENERAL DESCRIPTION CONCERNING THE TONE ALARM FUNCTION
The tone alarm functions are as mentioned. These functions are controlled by relevant ECUs.
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 to indicate that the ignition key has not been removed.
LIGHT REMINDER TONE ALARM FUNCTION
When the taillights or headlights are in the ON position, if the ignition key is removed and the driver's door is opened, a tone alarm will sound continuously to warn that the lights are on. However, if the taillights or headlights have been turned off by the headlight automatic-shutoff function, the tone alarm will not sound.
Seat Belt Tone Alarm Function Part 1:
Seat Belt Tone Alarm Function Part 2:
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 sent from the combination meter.
- 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). This is called "Timer function".
- Sounds the tone alarm 12 cycles (after 0.5 seconds) if any of the following conditions is met when sixty seconds or more have elapsed since the ignition switch is turned "ON". One cycle consists of five-second "on" and then three-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 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.
- 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.
DOOR AJAR WARNING BUZZER
The buzzer is sounded 4 times by the ETACS-ECU to warn the driver if any door (including the tailgate or glass hatch) is open when the ignition is switched ON and the vehicle speed reaches 8 km/h or faster. The buzzer will continue to sound for 4 times even if the ignition, door status, or vehicle speed requirements are not maintained.
NOTE: The warning buzzer can be customized on vehicles equipped with a multi-center display (middle grade type).
CENTER DISPLAY OPERATION TONE
The ETACS-ECU sounds the buzzer when the buzzer signal is sent from the center display.
TURN-SIGNAL LIGHT BUZZER
The ETACS-ECU sounds the buzzer in sync with the turn signal lights or hazard warning lights.
NOTE: The turn-signal light buzzer can be customized on vehicles equipped with a multi-center display (middle grade type).
General Circuit Diagram For Ignition Key Reminder Tone Alarm Function:
GENERAL CIRCUIT DIAGRAM FOR IGNITION KEY REMINDER TONE ALARM FUNCTION
General Circuit Diagram For Light Reminder Tone Alarm Function:
GENERAL CIRCUIT DIAGRAM FOR LIGHT REMINDER TONE ALARM FUNCTION
General Circuit Diagram For Seat Belt Tone Alarm Function:
GENERAL CIRCUIT DIAGRAM FOR SEAT BELT TONE ALARM FUNCTION
WINDSHIELD WIPER AND WASHER
GENERAL DESCRIPTION CONCERNING THE WINDSHIELD WIPER AND WASHER
The given 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)
ETACS-ECU uses the dial position of the variable intermittent wiper control switch and the vehicle speed signal sent by the combination meter to calculate the interval, and sends this to the front-ECU.
NOTE: The speed-sensitive wiper can be customized on vehicles equipped with a multi-center display (middle grade type).
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, then turns OFF the wind-shield wiper drive signal. After the intermittent time T1 seconds from when the windshield wiper drive signal turned ON, the windshield wiper drive signal is turned ON again and the above operation is repeated.
NOTE: If the intermittent time T1 is within 2 seconds, the wiper is operated consecutively at LOW-speed by the front-ECU.
Mist Wiper Control:
MIST WIPER CONTROL
When the ignition switch is in the ACC or ON position, and the windshield mist wiper switch of the column 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-SPEED). 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 once at low speed. 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 T1 seconds after the last windshield wiper auto-stop signal turning ON.
Low Speed Wiper And High Speed Wiper Control:
LOW SPEED WIPER AND HIGH SPEED WIPER CONTROL
When the ignition switch is at the ACC or ON position, and the windshield low speed wiper switch of the column switch is turned ON, the front-ECU turns ON the windshield wiper drive signal, turns OFF (LO) the windshield wiper speed 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 (HI), and the windshield wiper is operated at high speed.
Washer Control:
WASHER CONTROL
When the ignition switch is in the ACC or ON position, and the windshield washer switch of the column switch is turned ON, the front-ECU turns ON the windshield washer relay. The windshield wiper drive signal is turned ON after 0.15 seconds until 2 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.
General Circuit Diagram For The Windshield Wiper And Washer:
GENERAL CIRCUIT DIAGRAM FOR THE WINDSHIELD WIPER AND WASHER