DTC P0032 [L3]: Notes
DTC P0032 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES
| DTC P0032 |
Front HO2S heater circuit high input |
| DETECTION CONDITION |
- The PCM monitors the front HO2S heater output current at PCM terminal 2A. If the PCM turns the front HO2S heater to ON but the front HO2S heater circuit current is above 7 A
for 2s
, 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.
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| POSSIBLE CAUSE |
- Short to power supply in the wiring harness between front HO2S terminal E and PCM terminal 2A
- Short circuit in the front HO2S or the PCM terminal
- Font HO2S heater malfunction
- PCM malfunction
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