FixVault

DTC P2127: Notes

DTC P2127 (LF, L3) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P2127 Accelerator pedal position (APP) sensor No. 2 circuit low input
DETECTION CONDITION 
  • The PCM monitors the input voltage from APP sensor No. 2 when the engine is running. If the input voltage is below 6 V (1) /5.28 V (2) ,  (3)  for 1s  , the PCM determines that the APP sensor No. 2 circuit has 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.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • APP sensor No. 2 malfunction
  • Connector or terminal malfunction
  • Short to ground in wiring harness between APP sensor terminal E and PCM terminal 1AC(1), 1AL(2), 1AO(3)
  • PCM malfunction
G04954325Courtesy of MAZDA MOTORS CORP.
(1) California emission regulation applicable model
(2) Except for California emission regulation applicable model with LF ATX
(3) Except for California emission regulation applicable model with LF MTX, L3