The engine start function of remote keyless entry system is a system that makes it possible to start and stop the engine without removing the key. It verifies the electronic ID using two-way communications when pressing the push-button ignition switch while carrying the keyfob, which operates based on the results of electronic ID verification for keyfob using two-way communications between the keyfob and the vehicle.
NOTE:
The driver should carry the keyfob at all times.
keyfob has 2 IDs [for keyfob and for NVIS (NATS)]. It can perform the door lock/unlock operation and the push-button ignition switch operation when the registered keyfob is carried.
When the keyfob battery is discharged, it can be used as emergency back-up by inserting the keyfob to the key slot. At that time, perform the NVIS (NATS) ID verification. If it is used when the keyfob is carried, perform the keyfob ID verification.
If the ID is successfully verified, and when push-button ignition switch is pressed, steering lock will be released and initiating the engine will be possible.
If the door lock/unlock operation is performed when the keyfob battery is discharged, all doors lock/unlock can be performed by operating the driver door key cylinder using the mechanical key set in the keyfob.
keyfob can be registered up to 4 keys (Including the standard keyfob) on request from the owner.
In the remote keyless entry system of model L32, the transponder [the chip for NVIS (NATS) ID verification] is integrated into the keyfob. (For the conventional models, it is integrated into the mechanical key.) Therefore, the mechanical key cannot perform the ID verification, and thus it cannot start the engine. Instead, the NVIS (NATS) ID verification can be performed by inserting the keyfob into the key slot, and then it can start the engine.
OPERATION WHEN KEYFOB IS CARRIED
When the push-button ignition switch is pressed and brake pedal is depressed, the BCM signals the inside key antenna and transmits the request signal to the keyfob.
The keyfob sends the request signal and transmits the keyfob ID signal to the BCM via the remote keyless entry receiver.
The BCM receives the keyfob ID signal and verifies it with the registered ID.
BCM transmits the steering lock unlock signal to steering lock unit and IPDM E/R if the verification results are OK.
IPDM E/R turns the steering lock relay ON and supplies power to the steering lock unit.
Release of the steering lock.
BCM transmits the power supply stop signal to IPDM E/R when it confirms that the steering lock is in the unlock condition.
IPDM E/R turns the steering lock relay OFF and stops power supply to the steering lock unit.
BCM turns ACC relay ON and transmits the ignition power supply ON signal to IPDM E/R.
IPDM E/R turns the ignition relay ON and starts the ignition power supply.
BCM confirms that the shift position is P or N.
BCM transmits the starter request signal via CAN communication to IPDM E/R and turns the starter relay in IPDM E/R ON if BCM judges that the engine start condition is satisfied.
IPDM E/R turns the starter control relay ON when receiving the starter request signal.
Battery power is supplied through the starter relay and the starter control relay to operate the starter motor and to start the cranking.
CAUTION: If a malfunction is detected in the remote keyless entry system, the "KEY" warning lamp in the combination meter illuminates. At that time, the engine cannot be started.
When BCM received feedback signal from ECM acknowledging the engine has been initiated, the BCM transmits a stop signal to IPDM E/R and stops the cranking by turning OFF the starter motor relay. (If the engine initiating has failed, the cranking will stop automatically within 5 seconds.)
CAUTION: When the keyfob is carried outside of the vehicle (inside key antenna detection area) with the power supply in ACC or ON position, even if the engine start condition* is satisfied, the engine cannot be started.
*: For the engine start condition, refer to "PUSH-BUTTON IGNITION SWITCH OPERATION PROCEDURE".
OPERATION RANGE
Engine can be started when keyfob is inside the vehicle. However, sometimes engine might not start when keyfob is on instrument panel or in glove box.
OPERATION WHEN KEY SLOT IS USED
When the keyfob battery is discharged, it performs the NVIS (NATS) ID verification between the integrated transponder and BCM by inserting the keyfob into the key slot, and then the engine can be started.
For details relating to starting the engine using key slot, refer to See: System Description.
BATTERY SAVER SYSTEM
When all the following conditions are met for 60 minutes, the battery saver system will cut off the power supply to prevent battery discharge.
The ignition switch is in the ACC position
All doors are closed
CVT selector lever is in the P position
No remote keyless entry system failures (keyfob warning indicator is not ON)
Reset Condition of Battery Saver System
In order to prevent the battery from discharging, the battery saver system will cut off the power supply when all doors are closed, the selector lever is on P position and the ignition switch is left on ACC position for 1 hour. If any of the following conditions are met the battery saver system is released and the steering will change automatically to lock position from OFF position.
Opening any door
Operating with keyfob on door lock Press push-button ignition switch and ignition switch will change to ACC position from OFF position.
STEERING LOCK OPERATION
Steering is locked by steering lock unit when ignition switch is in the OFF position, CVT selector lever is in the
P position and any of the following conditions are met.
Opening door
Closing door
Door is locked with keyfob
PUSH-BUTTON IGNITION SWITCH OPERATION PROCEDURE
The power supply position changing operation can be performed with the following operations.
NOTE:
When an keyfob is within the detection area of inside key antenna or when it is inserted to the key slot, it is equivalent to the operations below.
When starting the engine, the BCM monitors under the engine start conditions,
Brake pedal operating condition
CVT selector lever position
Vehicle speed
Steering lock condition
Engine status
Unless each start condition is fulfilled, the engine will not respond regardless of how many times the engine switch is pressed. At that time, Illumination repeats the position in the order of LOCK to ACC to ON to OFF.
