DTC P2245: Notes
DTC P2245 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P2245 |
Front HO2S sensor reference voltage circuit low input |
| DETECTION CONDITION |
- The PCM monitors is front HO2S sensor reference voltage circuit voltage. If the voltage below the threshold value while the engine is running, the PCM determines that the front HO2S sensor reference voltage circuit is low.
Diagnostic support note
- This is a continuous monitor. (HO2S)
- MIL illuminates if the PCM detects the above malfunctioning 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 conditions during the first drive cycle.
- FREEZE FRAME DATA is available.
- DTCs are stored in the PCM memory.
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| POSSIBLE CAUSE |
- Front HO2S malfunction
- Connector or terminal malfunction
- Short to ground circuit between PCM terminal 2M and front HO2S sensor terminal 2C
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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