April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit Description

HINT:

This is repair procedure of "accelerator pedal position sensor".

Refer to DTC P2120 DTC P2120 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT, DTC P2122 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT LOW INPUT, DTC P2123 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT HIGH INPUT, DTC P2125 THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT, DTC P2127 THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT LOW INPUT, DTC P2128 THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT HIGH INPUT, DTC P2138 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D"/"E" VOLTAGE CORRELATION .

CIRCUIT DESCRIPTION (DTC P2121)

DTC No.	DTC Detection Condition	Trouble Area
P2121	Condition (a) and (b) continues for 0.5 seconds: (a) Difference between VPA and VPA2 exceeds the threshold (b) Idle is OFF	Accelerator pedal position sensor