DTC Detection Logic
|
DTC No. |
Trouble diagnosis name (Trouble diagnosis content) |
DTC detecting condition |
Possible cause |
|
P0030 |
A/F SEN 1 HTR (B1) (Air fuel ratio (A/F) sensor 1 heater control circuit) |
Deterioration in A/F sensor 1 heater performance. (Voltage signal transmitted from A/F sensor 1 heater to ECM is higher/lower than voltage in the normal range.) |
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P0031 |
A/F SEN 1 HTR (B1) (Air fuel ratio (A/F) sensor 1 heater control circuit low) |
The current amperage in the A/F sensor 1 heater circuit is out of the normal range. (An excessively low voltage signal is sent to ECM through the A/F sensor 1 heater.) |
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P0032 |
A/F SEN 1 HTR (B1) (Air fuel ratio (A/F) sensor 1 heater control circuit high) |
The current amperage in the A/F sensor 1 heater circuit is out of the normal range. (An excessively high voltage signal is sent to ECM through the A/F sensor 1 heater.) |
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