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P2127, P2128 APP SENSOR EC-351 < COMPONENT DIAGNOSIS > [QR25DE] C D E F G H I J K L M A EC N P O P2127, P2128 APP SENSOR Component Description INFOID:0000000005273389 The accelerator pedal position sensor is installed on the upper end On Board Diagnosis Logic INFOID:0000000005273390 These self-diagnoses have the one trip detection logic. FAIL-SAFE MODE When the malfunction is detected, the ECM enters fail-safe mode and the MIL lights up. DTC Confirmation Procedure INFOID:0000000005273391 NOTE: WITH CONSULT-III 1. Start engine and let it idle for 1 second. 2. Check DTC. 3. If DTC is detected, go to . WITH GST Follow the procedure “WITH CONSULT-III” above. PBIB1741E DTC No. Trouble diagnosis name DTC detecting condition Possible cause P2127 Accelerator pedal position An excessively low voltage from the APP • Harness or connectors (The APP sensor 2 circuit is open or • Accelerator pedal position sensor (Accelerator pedal position sensor 2) • Electric throttle control actuator (TP sensor 1 and 2) P2128 Accelerator pedal position An excessively high voltage from the APP 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 |