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Home >> Mazda >> 2016 >> 3 Sport, 4D Hatchback, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (3 Of 4) >> DTC P2127-00: App Sensor No. 2 Circuit Low Input >> Notes

DTC P2127-00: App Sensor No. 2 Circuit Low Input: Notes

DTC P2127:00 APP sensor No. 2 circuit low input
DETECTION CONDITION 
  • The PCM monitors the input voltage from APP sensor No. 2. If the input voltage at the PCM terminal 2AS is less than 0.1 V  , the PCM determines that the APP sensor No. 2 circuit has a malfunction.

    Diagnostic support note 

  • This is a continuous monitor (CCM).
  • The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
  • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION 
  • Regulates the upper limit of the APP sensor output.
POSSIBLE CAUSE 
  • APP sensor connector or terminals malfunction
  • Short to ground in wiring harness between the following terminals:
    • APP sensor terminal F-PCM terminal 2AW
    • APP sensor terminal E-PCM terminal 2AS
  • PCM connector or terminals malfunction
  • APP sensor No. 2 signal circuit and ground circuit are shorted to each other
  • Open circuit in wiring harness between the following terminals:
    • APP sensor terminal F-PCM terminal 2AW
    • APP sensor terminal E-PCM terminal 2AS
  • APP sensor No. 2 malfunction
  • PCM malfunction
G10959503
CAUTION:
  • Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.