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SYSTEM SEC-17 < SYSTEM DESCRIPTION > [WITH INTELLIGENT KEY SYSTEM] C D E F G H I J L M A B SEC N O P PRECAUTIONS FOR INTELLIGENT KEY SYSTEM The transponder (the chip for NATS ID verification) is integrated into the Intelligent Key. (For the con- OPERATION WHEN INTELLIGENT KEY IS CARRIED 1. When the push-button ignition switch is pressed, the BCM activates the inside key antenna and transmits 2. The Intelligent Key receives the request signal and transmits the NATS ID signal to the BCM. 3. BCM receives the NATS ID signal verifies it with the registered ID. 4. When immobilizer verification result is OK, BCM supplies power to the steering lock unit, and transmits 5. When the steering lock unit receives a steering lock unit unlock request signal from the BCM, it sends the 6. When BCM receives a steering lock unit unlock status signal from the steering lock unit, it stops the steer- 7. When the ignition switch is turned to ON, BCM performs ID verification with the ECM. When the result is 8. BCM detects the selector lever position and brake pedal operation condition. 9. When ECM detects that the start engine conditions* are satisfied, it transmits a starter control relay 10. When BCM receives a starter control relay request signal from ECM, the starter control relay is turned ON. 11. When starter control relay is turned ON, IPDM E/R turns ON the starter relay and drives the starter motor. OFF and stops cranking. CAUTION: When the Intelligent Key is carried outside of the vehicle (inside key antenna detection area) while *: For the engine start condition, refer to “IGNITION SWITCH POSITION CHANGE TABLE BY PUSH-BUT- OPERATION RANGE Engine can be started when Intelligent Key is inside the vehicle. However, sometimes engine may not start STEERING LOCK OPERATION When the shift position is P and the ignition switch is turned OFF, when BCM detects the following statuses, a IGNITION SWITCH POSITION CHANGE TABLE BY PUSH-BUTTON IGNITION SWITCH OPERA- The ignition switch position can be changed by the following operations. contacted to push-button ignition switch, it is equivalent to the operations below. |