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

Refer to 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

DTC CHART

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