2006 Mazda MPV ESFACTORY OEM SERVICE PROCEDURE

DTC P0122: Notes

DTC P0122 [AJ] DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0122 TP circuit low input
DETECTION CONDITION 
  • If PCM detects TP sensor voltage at PCM terminal 40 below 0.16 V  after key to ON, PCM determines that TP circuit has a malfunction.

Diagnostic support note 

  • This is a continuous monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle.
  • PENDING CODE is available if the PCM detects the above malfunction condition.
  • FREEZE FRAME DATA is available.
  • DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • TP sensor malfunction
  • Connector or terminal malfunction
  • Open circuit between TP sensor terminal B and PCM terminal 40
  • Short to ground circuit between TP sensor terminal B and PCM terminal 40
  • Open circuit between TP sensor terminal C and PCM terminal 33
  • Short to ground circuit between TP sensor terminal C and PCM terminal 33
  • PCM malfunction
G04327912Courtesy of MAZDA MOTORS CORP.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.