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DTC P0122: Notes

DTC P0122 (LF, L3) DIAGNOSTIC PROCEDURE

DTC P0122 TP sensor No. 1 circuit low input
DETECTION CONDITION 
  • If the PCM detects the TP sensor voltage is below 0.1 V (3) , 0.2 V (4)  while the engine running to on, the PCM determines that the TP circuit has malfunction.

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction conditions in first drive cycles.
  • 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
  • Short to ground in wiring harness between TP sensor terminal A and PCM terminal 2AK(1), 2M(2)
  • Open circuit in wiring harness between TP sensor terminal A and PCM terminal 2AK(1), 2M(2)
  • Short to ground in wiring harness between TP sensor terminal B and PCM terminal 2AO(1), 2K(2)
  • Open circuit in wiring harness between TP sensor terminal B and PCM terminal 2AO(1), 2K(2)
G04954284Courtesy of MAZDA MOTORS CORP.
(1) LF MTX, L3 and California emission regulation applicable model with LF ATX
(2) Except for California emission regulation applicable model with LF ATX
(3) California emission regulation applicable model
(4) Except for California emission regulation applicable model