System Description

SYSTEM

POWER DISTRIBUTION SYSTEM : System Description


SYSTEM DESCRIPTION

- PDS (POWER DISTRIBUTION SYSTEM) is the system that BCM controls with the operation of the push-button ignition switch and performs the power distribution to each power circuit. This system is used instead of the mechanical power supply changing mechanism with the operation of the conventional key cylinder.
- The push-button ignition switch can be operated when Intelligent Key is in the following condition.
- Intelligent Key is in the detection area of the inside key antenna.
- Intelligent Key backside is contacted to push-button ignition switch.
- The push-button ignition switch operation is input to BCM as a signal. BCM changes the power supply position according to the status and operates the following relays to supply power to each power circuit.
- Ignition relay (IPDM E/R)
- Ignition relay (fuse block)
- Accessory relay
- Blower relay
- The power supply position changes due to the conditions of push-button ignition switch operation, brake pedal, clutch pedal, selector lever and vehicle speed.
- Refer to the following for details at the power supply position.
- LOCK: Ignition switch OFF with steering is locked.
- OFF: Ignition switch OFF with steering is unlocked.
- ACC: Ignition switch ACC
- IGN: Ignition switch ON (Not vehicle condition READY)
- RUN: Ignition switch ON (Vehicle condition READY or running)
- CRANKING: Shifting to vehicle condition READY (Transmitting the READY signal from BCM to HPCM)
NOTE:
- The power supply position can be confirmed with the lighting of the indicators near the push-button ignition switch.
- For models without steering lock unit, power supply position changes from "OFF" to "LOCK" when steering lock conditions are satisfied.

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 12V battery discharge.
- The ignition switch is in the ACC position
- All doors are closed
- Selector lever is in the P position
Reset Condition of Battery Saver System
If any of the following conditions are met the battery saver system is released.
- Opening any door
- Operating with door request switch on door lock
- Operating with Intelligent Key on door lock
- Press push-button ignition switch and ignition switch will change to ACC position from OFF position.

STEERING LOCK OPERATION (MODELS WITH STEERING LOCK UNIT)

Steering is locked by steering lock unit when ignition switch is in the OFF position, selector lever is in the P
position and any of the following conditions are met.
- Opening door
- Closing door
- Door is locked with door request switch
- Door is locked with Intelligent Key

READY SET CONDITION TABLE BY PUSH-BUTTON IGNITION SWITCH OPERATION

The vehicle can be set to READY by the following operations.
NOTE:
- When an Intelligent Key is within the detection area of inside key antenna and when Intelligent Key backside is contacted to push-button ignition switch, it is equivalent to the operations below.
- When setting the vehicle to READY, the BCM monitors the following conditions.
- Brake pedal operating condition
- Selector lever position
- Vehicle speed
Vehicle speed: less than 4 km/h (2.5 MPH)





Vehicle speed: 4 km/h (2.5 MPH) or more