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DTC P2122, P2123 APP SENSOR EC-579 C D E F G H I J K L M A EC 2007 Pathfinder DTC P2122, P2123 APP SENSOR PFP:18002 Component Description UBS00KGZ The accelerator pedal position sensor is installed on the upper end CONSULT-II Reference Value in Data Monitor Mode UBS00KH0 Specification data are reference values. *: Accelerator pedal position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage. On Board Diagnosis Logic UBS00KH1 These self-diagnoses have the one trip detection logic. NOTE: EC-475, "DTC P0643 SENSOR POWER SUPPLY" FAIL-SAFE MODE When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up. PBIB1741E MONITOR ITEM CONDITION SPECIFICATION ACCEL SEN 1 ● Ignition switch: ON Accelerator pedal: Fully released 0.65 - 0.87V Accelerator pedal: Fully depressed More than 4.3V ACCEL SEN 2* ● Ignition switch: ON Accelerator pedal: Fully released 0.56 - 0.96V Accelerator pedal: Fully depressed More than 4.0V CLSD THL POS ● Ignition switch: ON Accelerator pedal: Fully released ON Accelerator pedal: Slightly depressed OFF DTC No. Trouble diagnosis name DTC detecting condition Possible cause P2122 Accelerator pedal posi- An excessively low voltage from the APP sen- ● Harness or connectors ● Accelerator pedal position sensor P2123 Accelerator pedal posi- An excessively high voltage from the APP sen- Engine operating condition in fail-safe mode The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10 |