P1780

DTC P1780 PARK/NEUTRAL POSITION SWITCH SYSTEM MALFUNCTION

CIRCUIT DESCRIPTION
The park/neutral position switch sends both main sensor signal (switch signal) and sub sensor signal (analogue value) to the HV ECU. The HV ECU uses those signals to detect the shift lever position (P, R, N, D or B) and to control the forward and backward movement of the vehicle.

HINT:
- When using an OBD II scan tool other than TOYOTA hand-held tester, check all the steps.
- When using TOYOTA hand-held tester, confirm the information code and check it.

Detecting Condition:

DTC P1780 - Information code 118, 119,120, 121

Wiring Diagram:

Step 1:

INSPECTION PROCEDURE