P2121 2004 TOYOTA HIGHLANDER - Throttle/Pedal Position Sensor/Switch 'D' Circuit Range/Performance
P2121 2004 Toyota Highlander DescriptionThe Accelerator Pedal Position Sensor is mounted on the accelerator pedal bracket. The accelerator pedal position sensor has two sensor elements/signal outputs: VPA and VPA2. VPA is used to detect the actual accelerator pedal angle (used for engine control) and VPA2 is used to detect malfunctions in VPA. When the difference between the voltage outputs of VPA and VPA2 deviate from the standard, the Engine Control Module (ECM) concludes the accelerator pedal position sensor has a malfunction.
Need more help?Do you need more help with the P2121 2004 Toyota Highlander code? Ask a question to our users or find an automotive repair shop near you to help fix the OBDII code
P2121 2004 TOYOTA HIGHLANDER CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P2121 2004 Toyota Highlander code? Have you replaced any parts?
Any information is appreciated. Thanks