DTC 579

DTC 579 PARK/NEUTRAL SWITCH INPUT CIRCUIT LOW

CIRCUIT DESCRIPTION

DTC Detection Condition:

Instead of having a parking position as one of the positions of the conventional shift lever, a P position switch is provided independently in the upper area of the selector lever. The switch is based on a momentary type operation mode, in which the button does not lock mechanically.

The P position switch contains resistors R1 and R2. When the P position switch is not pressed, the switch provides a combined resistance of R1 and R2; and when the P position switch is pressed, the switch provides only the resistance of R1. The voltage at the P1 terminal of the HV control ECU varies with the changes in the resistance of the switch. The HV control ECU determines the P position switch operation intended by the driver according to this resistance signal.

Wiring Diagram:

Step 1 - 2:

Step 3:

INSPECTION PROCEDURE