Mike's Workshop Manuals: Service manuals for every vehicle
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 P2123-00: App Sensor No. 1 Circuit High Input >> Notes

DTC P2123-00: App Sensor No. 1 Circuit High Input: Notes

DTC P2123:00 APP sensor No. 1 circuit high input
DETECTION CONDITION 
  • The PCM monitors the input voltage from APP sensor No. 1. If the input voltage at the PCM terminal 2AN is above 4.9 V  , the PCM determines that the APP sensor No. 1 circuit input voltage is high.

    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
  • PCM connector or terminals malfunction
  • APP sensor No. 1 malfunction
  • Short to power supply in wiring harness between APP sensor terminal B and PCM terminal 2AN
  • Open circuit in wiring harness between APP sensor terminal C and PCM terminal 2AO
  • PCM malfunction
G10959502
CAUTION:
  • Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.
scientia non olet · About Mike's Workshop Manuals