DTC P0054:00, P0060:00 [MZI-3.7]: Notes
WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE
DTC P0054:00
DTC P0060:00 |
P0054:00: HO2S (RH) heater resistance
P0060:00: HO2S (LH) heater resistance |
| DETECTION CONDITION |
- Heater current requirements too low or high in the heated oxygen sensor (HO2S) heater control circuit.
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| POSSIBLE CAUSE |
- Open circuit between HO2S terminal C and main relay terminal D
- DTC P0054:00: Short to ground circuit between HO2S (RH) terminal A and PCM terminal 3N
- DTC P0060:00: Short to ground circuit between HO2S (LH) terminal A and PCM terminal 3AM
- HO2S circuits are shorted each other
- DTC P0054:00: Open circuit between HO2S (RH) terminal A and PCM terminal 3N
- DTC P0060:00: Open circuit between HO2S (LH) terminal A and PCM terminal 3AM
- HO2S heater malfunction
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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