PUSH BUTTON START SYSTEM [KEYLESS ENTRY SYSTEM]
id0914001116b3
Outline
• A push button start system has been adopted that automatically performs authorization of the remote transmitter brought into the vehicle.
Function
• When the bush button start is pressed, the push button start system performs authorization of the remote transmitter in the vehicle.
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― Engine start: When authorization of the remote transmitter is completed with the engine-start conditions met, the engine starts.
• The guidance function alerts using the KEY warning light (red) (without multi-information display)/by displaying the method for resolving an issue in the multi-information display (with multi-information display) and using the keyless warning alarm if the conditions are insufficient for starting the engine, the remote transmitter cannot be authorized, or the steering lock cannot be released.
Structure/Construction
Structural view
System wiring diagram
Operation
Remote transmitter verification
1. When the push button start is pressed, a push button start signal is input to the start stop unit.
2. When the start stop unit detects a push button start signal, it sends a request signal via the keyless antennas.
3. The remote transmitter receives the request signal from the keyless antennas, and transmits ID data to the keyless receiver.
4. The keyless receiver transmits the received ID data to the start stop unit.
5. The start stop unit verifies the ID data and if it matches the steering lock in the module is released and the power supply is switched simultaneously to illuminate the push button start indicator light (amber). For details on the power supply switching, refer to [POWER SUPPLY SWITCHING]. (See POWER SUPPLY SWITCHING.)
Engine-start operation
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• The remote transmitter authorization is performed and the engine starts by pressing the push button start when all the following conditions are met:
Engine start conditions
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― Brake pedal is depressed
― Selector lever is in P or N position
― Remote transmitter is within request signal output range of keyless antennas in vehicle interior
Engine emergency stop
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• If an ignition switch on signal is input for 3 s or more (ignition switch held pressed) with the engine running, or a push button start ON signal is input 3 times within 1.5 s, the start stop unit switches the ignition to ACC or off according to the position of the selector lever.
Guidance function
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Advice display for engine-start (with multi-information display)
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• Under the following conditions, the start stop unit sends an advice request signal via CAN transmission to the instrument cluster.
• When the instrument cluster receives an advice request signal, it displays the conditions which have not been met in order to start the engine in the multi-information display.
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Condition
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Multi-information display
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Ignition is switched ON (engine off) from OFF (LOCK) without depressing brake pedal
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Ignition is switched ON (engine off) and selector lever is not in P position when pressing push button
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Display of methods for resolving issues
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• Under the conditions in the table below, the start stop unit sends a security warning request signal via CAN communication to the instrument cluster.
• When the instrument cluster receives the warning request signal under the following conditions, it flashes the KEY warning light (red)*1/it displays the method for resolving an issue in the multi-information display*2.
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Condition
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Instrument cluster
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Keyless warning alarm
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KEY warning light (red)*1
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Multi-information display*2
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ID data cannot be verified
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Flashes
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Steering lock cannot be released
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Pattern C*3
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*1 :Without multi-information display
*2 :With multi-information display
*3 :For the keyless warning alarm sound pattern, refer to the keyless warning alarm. (See
KEYLESS WARNING ALARM.)
