Engine Start Operation When Intelligent Key Is Contacted To Push-Button Ignition Switch
- When brake pedal is depressed while selector lever is in the P position the BCM activates NATS antenna amp. that is located behind push-button ignition switch.
- When Intelligent Key (transponder built-in) backside is contacted to push-button ignition switch, BCM starts NATS ID verification between BCM and Intelligent Key (transponder built-in) via NATS antenna amp.
- When NATS ID verification result is OK, buzzer in combination meter sounds and BCM transmits the result to ECM.
- BCM turns ACC relay ON and transmits ignition power supply ON signal to IPDM E/R.
- IPDM E/R turns the ignition relay ON and starts the ignition power supply.
- IPDM E/R turns the starter control relay ON for engine starting in advance.
- BCM detects that the selector lever position and brake pedal operation condition.
- BCM transmits starter request signal to IPDM E/R and turns the starter relay ON if BCM judges that the engine start condition * is satisfied.
- Power supply is supplied through the starter relay and the starter control relay to operate the starter motor.
- When BCM receives feedback signal from ECM indicating that the engine is started, BCM transmits a stop signal to IPDM E/R and stops cranking by turning off the starter motor relay. (If engine start is unsuccessful, cranking stops automatically within 5 seconds.)
* : For the engine start condition, refer to "IGNITION SWITCH POSITION CHANGE TABLE BY PUSH-BUTTON IGNITION SWITCH OPERATION" below.