DTC P2122: Notes

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Notes
DTC P2122 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES

DTC P2122 Accelerator pedal position (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 0.12 V  , the PCM determines that the APP sensor No. 1 circuit input voltage is low.

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2/Mode12) is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • APP sensor connector or terminal malfunction
  • Short to ground in wiring harness between APP sensor terminal A and PCM terminal 1AL
  • Short to ground in wiring harness between APP sensor terminal B and PCM terminal 1AP
  • APP sensor No. 1 malfunction
  • PCM connector or terminal malfunction
  • Open circuit in wiring harness between APP sensor terminal A and PCM terminal 1AL
  • Open circuit in wiring harness between APP sensor terminal B and PCM terminal 1AP
  • PCM malfunction
G06760514Courtesy of MAZDA MOTORS CORP.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • 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.