DTC P2123:00: Notes

DTC P2123:00	APP sensor No.1 circuit high input
DETECTION CONDITION	The PCM monitors the input voltage from APP sensor No.1 when the engine is running. If the input voltage is above 4.8 V , the PCM determines that the APP sensor No.1 circuit input voltage is high. Diagnostic support note This is a continuous monitor (CCM). The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle. FREEZE FRAME DATA (Mode 2)/Snapshot data is available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	APP sensor connector or terminal malfunction PCM connector or terminal malfunction Short to power supply in wiring harness between APP sensor terminal E and PCM terminal 1AO Open circuit in wiring harness between APP sensor terminal D and PCM terminal 1AS APP sensor No.1 malfunction PCM malfunction