DTC P0032: Notes
DTC P0032 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES
| DTC P0032 |
A/F sensor heater circuit high input |
| DETECTION CONDITION |
- The PCM monitors the A/F sensor heater output voltage. If the PCM turns the A/F sensor heater on but the
- A/F sensor heater circuit remains high voltage, the PCM determines that the A/F sensor heater circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (A/F sensor 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 (Mode 2/Mode 12) is available.
- The DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- A/F sensor connector or terminal malfunction
- A/F sensor heater malfunction
- PCM connector or terminal malfunction
- Short to power supply in the wiring harness between A/F sensor terminal E and PCM terminal 2A
- Short circuit in the A/F sensor or the PCM terminal
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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