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DTC P2121: Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance: Description

Refer to DTC P2120  .

DTC DETECTION CONDITIONS AND TROUBLE AREA REFERENCE

DTC No. DTC Detection Conditions Trouble Areas
P2121 Difference between VPA and VPA2 less than 0.4 V, or more than 1.2 V for 0.5 seconds (1 trip detection logic)
  • Accelerator pedal position sensor
  • ECM