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DTC P0132 [LF]: Notes

DTC P0132 (LF) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0132 A/F sensor circuit high input
DETECTION CONDITION 
  • The PCM monitors the input voltage from the A/F sensor and the A/F sensor output current when the engine is running. If the input voltage is more than 3.8 V  or the output current is more than 5 mA  , the PCM determines that the A/F sensor circuit voltage is high.

Diagnostic support note 
  • This is a continuous monitor (A/F sensor, HO2S).
  • The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
  • PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2/Mode 12) is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • A/F sensor connector or terminals malfunction
  • PCM connector or terminals malfunction
  • Short to power supply in wiring harness between A/F sensor terminal A and PCM terminal 2AD
  • Short to power supply in wiring harness between A/F sensor terminal B and PCM terminal 2Z
  • A/F sensor malfunction
  • PCM malfunction
G06149971Courtesy of MAZDA MOTORS CORP.
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