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DTC P2138 APP SENSOR EC-613 C D E F G H I J K L M A EC DTC P2138 APP SENSOR PFP:18002 Component Description NBS0011A The accelerator pedal position sensor is installed on the upper end CONSULT-II Reference Value in Data Monitor Mode NBS0011B 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 NBS0011C This self-diagnosis has the one trip detection logic. EC-499, "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 0.5 - 1.0V Accelerator pedal: Fully depressed 4.0 - 4.8V ACCEL SEN 2* ● Ignition switch: ON Accelerator pedal: Fully released 0.3 - 1.2V Accelerator pedal: Fully depressed 3.9 - 4.8V 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 P2138 Accelerator pedal posi- Rationally incorrect voltage is sent to ECM ● Harness or connector ● Accelerator pedal position sensor ● Electric throttle control actuator Engine operating condition in fail-safe mode ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10 |