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Home >> Mazda >> 2006 >> 5 Sport, 2.3 L, Standard >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3) >> DTC P0032 >> Notes
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DTC P0032: Notes

DTC P0032 [L3] CHART

DTC P0032 Front HO2S heater circuit high input
DETECTION CONDITION 
  • The PCM monitors the front HO2S heater output voltage. If the PCM turns the front HO2S heater off or on but the front HO2S heater circuit remains high voltage, the PCM determines that the front HO2S heater circuit has malfunction.
    NOTE:
    • Front HO2S heater is controlled by duty signal.

    • Diagnostic support note 

  • This is a continuous monitor (HO2S heater).
  • 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 is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • Short to power supply in wiring harness between front HO2S terminal D and PCM terminal 2G
  • Short circuit in front HO2S or PCM terminal
  • Front HO2S heater malfunction
  • PCM malfunction
G04315696
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