2006 Mazda MX-5 Miata BaseFACTORY OEM SERVICE PROCEDURE

DTC P2122: Notes

DETECTION CONDITION AND POSSIBLE CAUSE (DTC P2122)

DTC P2122 APP sensor No.1 circuit low input
DETECTION CONDITION 
  • The PCM monitors the input voltage from APP sensor No.1 when the engine is running. If the input voltage is less than 0.35 V,  the PCM determines that the APP sensor No.1 circuit input voltage is low.
Diagnostic support note 
  • This is a continuous monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • PENDING CODE is available if the PCM detects the above malfunction conditions.
  • FREEZE FRAME DATA is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • APP sensor No.1 malfunction
  • Connector or terminal malfunction
  • Open circuit in wiring harness between APP sensor terminal D and PCM terminal 1AL
  • Short to ground in wiring harness between APP sensor terminal D and PCM terminal 1AL
  • Open circuit in wiring harness between APP sensor terminal F and PCM terminal 1AO
  • Short to ground in wiring harness between APP sensor terminal F and PCM terminal 1AO
  • PCM malfunction
G04317738Courtesy of MAZDA MOTORS CORP.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
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