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Home >> Nissan-Datsun >> 2007 >> X-Trail LE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1148 To P2138 >> DTC P2138 App Sensor >> On Board Diagnosis Logic >> Notes
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On Board Diagnosis Logic: Notes

This self-diagnosis has the one trip detection logic. 

NOTE: If DTC P2138 is displayed with DTC P1229, first perform the trouble diagnosis for DTC P1229. Refer to DTC P1229 SENSOR POWER SUPPLY .
DTC DETECTING CONDITION CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2138
2138
Accelerator pedal position sensor circuit range/performance problem Rationally incorrect voltage is sent to ECM compared with the signals from APP sensor 1 and APP sensor 2.
  • Harness or connector

    (The APP sensor 1 and 2 circuit is open or shorted.)

    (The TP sensor circuit is shorted.)

  • Accelerator pedal position sensor

    (APP sensor 1 and 2)

  • Electric throttle control actuator
(TP sensor 1 and 2)