Power Distribution System

FUNCTION DIAGNOSIS

POWER DISTRIBUTION SYSTEM

System Description

INPUT/OUTPUT SIGNAL CHART






SYSTEM DESCRIPTION
- PDS (POWER DISTRIBUTION SYSTEM) is the system that BCM controls with the operation of the pushbutton 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. Refer to Hybrid System Start Function for details.
- Intelligent Key is in the detection area of the interior antenna
- Insert Intelligent Key in to the key slot

- 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-1 (inside IPDM E/R)
- Ignition relay-2 [inside fuse block (J/B)]
- ACC relay
- Blower fan relay

NOTE: The hybrid system switch operation changes due to the conditions of brake pedal, ECVT selector lever and vehicle speed.

- The power supply position can be confirmed with the lighting of the indicators near the push-button ignition switch.

PUSH-BUTTON IGNITION SWITCH OPERATION PROCEDURE
The power supply position changing operation can be performed with the following operation.

NOTE:
- When an Intelligent Key is within the detection area of inside key antenna and when it is inserted in to the key slot, it is equivalent to the operations below.
- When starting the hybrid system, the BCM monitors under the hybrid system start conditions,
- Brake pedal operating condition
- ECVT selector lever position
- Vehicle speed

- Unless each start condition is fulfilled, the hybrid system will not respond regardless of how many times the push-button ignition switch is pressed. At that time, illumination repeats the position in the order of LOCK-->ACC-->ON-->OFF.









Component Description