Scheme 232
Scheme 233
Scheme 234
ACC ON Operation
After the electrical key turns on the half-inserted SW and the deep-inserted SW when inserting it into the key slot, the transponder key computer activates the transponder key amplifier incorporated in the key slot to identify the key ID. After the identification, if power SW is pushed without depressing the brake pedal, the power source control ECU starts. The ECU confirms that the brake pedal is not depressed from signals from the stop light SW and also requests the ID code box for the ID identification result. If the ID identification is normal, the power source control ECU turns on the ACC relay and changes the power SW indicator to green. The power supply is then considered to be ACC ON
IG ON Operation
If power SW is pushed without depressing brake pedal when it is ACC ON, the power source control ECU confirms that the brake pedal is not depressed, and then turns on the IG1 and IG2 relays as well it changes the power SW indicator to amber. The power supply is then considered to be IG ON.
Hybrid Start-Up Operation (READY)
After the electrical key turns on the half-inserted SW and the deep-inserted SW when inserting it into the key slot, the ID code box activates the transponder key amplifier incorporated in the key slot to identify the ID. After the identification, if the power SW is pushed while depressing the brake pedal, the power source control ECU activates. The ECU confirms that the brake pedal is depressed from the signal from the stop light SW and also requests the ID code box for the ID identification result. If the ID identification is normal, the ECU turns on the ACC relay, IG1 relay and IG2 relay, and changes the indicator on the power SW to amber. The power supply is then considered to be IG ON.
After that, the power source control ECU sends start-up signals to the hybrid vehicle control ECU. The hybrid vehicle control ECU and the ID code box communicate to check for start-up permission. The hybrid vehicle control ECU then starts-up the hybrid system (READY).
At starting up the hybrid system, the power source control ECU turns off the power SW indicator.
Power Supply Off Operation
* When the shift range is in P
If the power SW is pushed while the power supply is READY and the vehicle is stationary, then the power source control ECU confirms that shift position is P, and then turns off the ACC relay, IG1 relay and IG2 relay to change the power supply to OFF. The ECU also turns off the power SW indicator.
If the power SW is pushed while the power supply is IG ON, without depressing the brake pedal and the vehicle is stationary, then the power source control ECU confirms that shift position is P, and then turns off the ACC relay, IG1 relay and IG2 relay to change the power supply to OFF. The ECU also turns off the power SW indicator.
If the electrical key is taken from the key slot while the power supply is in ACC ON and the vehicle is stationary, then the power source control ECU puts the power supply into OFF automatically, which turns off the power SW indicator.
* When shift position is in a position other than P
If the power SW is pushed when the power supply is IG ON (Including READY) and the vehicle is stationary, the parking lock operation will be carried out. After that, power source control ECU confirms that shift position is P and then turns off ACC relay, IG1 relay and IG2 relay to change the power supply to OFF. The ECU then turns off the power SW indicator.
Key Interlock Operation
The power source control ECU holds the electrical key in the key slot and will not release it unless the power supply and shift position conditions are met. The power supply condition and shift position during the key interlock operation are as follows
* At starting-up hybrid system
* At power supply at IG ON
* At power supply at ACC ON and shift position at other than P position
Emergency Stop Operation of Hybrid System
If the power SW is held on for more than three seconds during driving, the hybrid system stops and the power supply is changed to ACC ON.
Regenerative System Operation
This system operates the motor as a generator to change the kinetic energy of the vehicle into electricity when the accelerator pedal is released or manual braking is use to decelerate the vehicle, and then stores the electricity in the battery.
Washer Interlocking Operation
When the wiper and washer SW is pulled to the washer position (Washer SW ON position), current flows from the WSH fuse to TERMINAL 1 of the front washer motor and out TERMINAL 2 to TERMINAL (A) 3 of the wiper and washer SW and out TERMINAL (A) 2 to GROUND and runs the washer motor and the window washer to spray. Simultaneously, current flows from the WIP fuse to TERMINAL (B) 2 of the wiper and washer SW then out TERMINAL (B) 3 to TERMINAL 5 of the front wiper motor and out TERMINAL 4 to GROUND, which activates the wiper.
Rear Wiper Normal Operation
When the power SW has been pushed to IG ON, and the rear wiper and washer SW is turned to the HI position, current flows from the rear wiper relay TERMINAL 3 and out TERMINAL 6 to the rear wiper and washer SW TERMINAL (A) 7 then out TERMINAL (A) 2 to GROUND, and turns on the rear wiper relay. As a result, current flows from the rear wiper relay TERMINAL 3 then out TERMINAL 4 to the rear wiper motor TERMINAL 3 and out TERMINAL 2 to GROUND, and operates the rear wiper.
Rear Wiper Intermittent Operation
When the power SW has been pushed to IG ON, and the rear wiper and washer SW is turned to the LO position, current flows from the rear wiper relay TERMINAL 3 then out TERMINAL 2 to the rear wiper and washer SW TERMINAL (A) 6 and out TERMINAL (A) 2 to GROUND, and the intermittent circuit in the rear wiper relay is controlled to operate the wiper intermittently.
Washer Operation
With the power SW has been pushed to IG ON, and the rear wiper and washer SW is turned to the ON position, when the washer is turned ON (to Wiper HI side), current to TERMINAL 1 of the washer motor flows out TERMINAL 2 of the motor to TERMINAL 5 of the rear wiper and washer SW then out TERMINAL 2 to GROUND so that the washer motor rotates and the window washer sprays water.
With the power SW is pushed to IG ON, and the rear wiper and washer SW is turned to the OFF position, then when the washer is turned ON (to Wiper OFF side), current flows as above so that the washer motor rotates and the window washer emits water as well as the wiper operates.
Manual Unlock Operation
When the door lock control SW on the driver or passenger side door is pushed to UNLOCK, the door unlocks.
Manual Lock Operation
When the door lock control SW on the driver or passenger side door is pushed to LOCK, the door locks.
Door Key Unlock Operation
* Unlock operation from driver side door
When the driver side door is unlocked once using the mechanical key, only the driver side door will unlock. If this operation is repeated within 3 seconds, the remaining doors will also unlock.
Ignition Key Reminder Operation
If the electrical key is still inserted in the key slot and driver side door is opened, the door cannot be locked using the door knob, but if operated, automatically unlocks the door again instead. If the door is locked with the manual door lock SW on the driver door or with the door key SW on driver door, the door locks once but immediately after, it unlocks again automatically.
Manual Operation Function
The electrical key has lock, unlock, and PANIC buttons. It can be used manually to perform wireless door locking or unlocking.
In which case, the operation is the same as a vehicle without a smart key system.
Normal Operation
* Lock operation
When the lock SW on the transmitter is pressed, all the doors will lock.
* Unlock operation
When the unlock SW on the transmitter is pressed once, only the driver door will unlock. When the unlock SW is pressed again within 3 seconds, all the doors will unlock.
Remote Panic Operation
The panic operation will function regardless of if the doors are locked or unlocked, open or closed. When the panic button (Transmitter) is pushed once, the interior lights will light up, and theft alarm and horn will sound and the turn signal lights, headlights and taillights will flash. Then, if any one of the buttons (Transmitter) is pushed once again, the interior lights will turn off, and the sounding and flashing will stop. The panic operation will not function when power SW is on.
Operation of Parking Lock
The operation signal from/to the P position is sent from the main SW or power SW to the transmission control ECU via the hybrid vehicle control ECU. At that time the transmission control ECU operates the P CON MTR relay, activates the parking lock actuator with an appropriate control of electric current, and lights up the main SW when the shift is in the P position. If the system has an abnormality in the parking lock operation, it informs the driver of the system abnormality by lighting up the master warning light on the combination meter, displaying a warning of the system abnormality on the multi-display, and blinking the indicator light of the main SW.
Operation at Electric Power OFF
If the electric power is OFF, transmission control ECU receives a signal from the power source control ECU by multi-communication, and sends the shift position information to the hybrid vehicle control ECU. The hybrid vehicle control ECU then sends a signal to the power source control ECU to tell whether it is correct or not to turn off the electric power. Accepted conditions for the electric power OFF are as follows
* When the hybrid vehicle control ECU is not sending request signals for the parking lock release and the shift lever is in the P position.
* With the shift position is in a position other than P, and the hybrid vehicle control ECU is outputting signals that the hybrid system is not running or is requesting signals for a parking lock.
* When the motor is not running because of an abnormality, the paring lock is in operation, the hybrid system is not running and the parking brake is being applied.
ABS Operation
If the brake pedal is depressed suddenly, the ABS controls the hydraulic pressure of the brake cylinders on all four of the wheels to automatically prevent the wheels from locking and to ensure the directional and steering stability of the vehicle. Under the situation, the skid control ECU controls the solenoids in the actuators, using the signals from the sensors to move the brake fluid to the reservoir in order to release the braking pressure applied to the wheel cylinders. Also, if the skid control ECU detects that the fluid pressure in the wheel cylinder is insufficient, the ECU controls the solenoids in the actuators to increase the braking pressure.
VSC Operation (w/ VSC)
Unexpected road conditions, emergency situations, and any other external factors may cause a large under- or over-steer of the vehicle. If this occur, the VSC system automatically controls the driving power and wheel brakes to reduce the under- or over-steer.
To reduce a large over-steer
If the VSC system determines that the over-steer is large, it activates the brakes for the outer turning wheels depending on the degree of the over-steer to produce moment toward the outside of the vehicle and reduce the over-steer.
To reduce a large under-steer
If the VSC system determines that the under-steer is large, it controls the driving power and activates the front wheel brakes and rear inner side wheel brake to reduce the under-steer.
If there is malfunction in the VSC system, the VSC indicator lights up to warn the driver.
Low Speed operation
When the water temp. SW (Inverter) is on and/or the A/C control assembly is in operation, the radiator fan motor and A/C condenser fan motor operate at low speed.
High Speed Operation
When the pressure SW (Single) is on, and the engine control module and/or the A/C control assembly is in operation, the radiator fan motor activates and the A/C condenser fan motor operates at high speed.
Heater Blower Operation
Manual operation
When the blower speed is set to a certain level using the blower control SW, the A/C control assembly sends signals to the blower control to control the blower motor speed.
Auto operation
When the auto SW is pushed, the A/C control assembly calculates the necessary blower speed from the SW settings and data received from the sensors and automatically sends signals to the blower control to control the blower motor speed.
Air Conditioning Operation
The A/C control assembly calculates the target cooling temperature from information such as that of operating SWs, room temperature, humidity, ambient temperature and insulation to set the target running speed for the compressor assembly (Motor).
The calculated control signal is sent to inverter to drive the compressor assembly (Motor) (Electric motor) and control the inverter, resulting in the A/C operating.
See also:
• POSITION OF PARTS IN INSTRUMENT PANEL