DTC P2123-00: Throttle/Pedal Position Sensor/Switch "D" Circuit High [07/2015 - 08/2018]: Contents

DTC No.	Detection Item	DTC Detection Condition	Warning Indicate	Memory	Fail-safe Operation	Note
P212300	Throttle/Pedal Position Sensor/Switch "D" Circuit High	APP sensor No. 1 circuit high input	Check engine light: ON Master warning light: OFF Charging system warning light: OFF Engine oil warning light: OFF Wrench warning indicator light: OFF	DTC stored	Applicable	Drive cycle: 1 Monitor item: CCM Self test type: CMDTC self test, KOEO self test, KOER self test

DTC DETECTION CONDITION	APP sensor No. 1 circuit high input
DTC DETECTION CONDITION	The ECM monitors the input voltage from APP sensor No. 1. If the input voltage at the ECM terminal A42-42 is above 4.9 V, the ECM determines that the APP sensor No. 1 circuit input voltage is high. Diagnostic support note This is a continuous monitor (CCM). The check engine light illuminates if the ECM detects the above malfunction condition during the first drive cycle. FREEZE FRAME DATA (Mode 02)/Snapshot data is available. DTC is stored in the ECM memory.
FAIL-SAFE OPERATION	Regulates the upper limit of the APP sensor output.
TROUBLE AREA	APP sensor connector or terminals malfunction ECM connector or terminals malfunction APP sensor No. 1 malfunction Short to power supply in wiring harness between APP sensor terminal E7-2 and ECM terminal A42-42 Open circuit in wiring harness between APP sensor terminal E7-3 and ECM terminal A42-57 ECM malfunction