P1121 TOYOTA - Accelerator Pedal Position Sensor Range/Performance Problem
- Faulty Accelerator Pedal Position Sensor
- Accelerator Pedal Position Sensor harness is open or shorted
- Accelerator Pedal Position Sensor circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
P1121 TOYOTA Description
The accelerator pedal position sensor is connected with the accelerator pedal by the accelerator wire and the voltage applied to the terminals VPA and VPA2 of the Engine Control Moduel (ECM) changes between 0 V and 5 V in proportion to the opening angle of the accelerator pedal.
If the the P1120 code is stored, the ECM shuts down the power for the throttle motor and the magnetic clutch, and the throttle valve is fully closed by the return spring.
However, the opening angle of the throttle valve can be controlled by the accelerator pedal through the throttle cable
P1121 TOYOTA Information for specific Toyota models
P1121 2005 TOYOTA PRIUS
P1121 2006 TOYOTA PRIUS
P1121 2007 TOYOTA PRIUS
P1121 2008 TOYOTA PRIUS
P1121 2009 TOYOTA PRIUS
P1121 TOYOTA PRIUS
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