DTC Detection Logic
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P0031 |
A/F SEN1 HTR (B1) (HO2S heater control circuit low bank 1 sensor 1) |
Diagnosis condition |
Engine running at idle |
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Signal (terminal) |
A/F sensor 1 heater (bank 1) signal |
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Threshold |
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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Diagnosis delay time |
-- |
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P0032 |
A/F SEN1 HTR (B1) (HO2S heater control circuit high bank 1 sensor 1) |
Diagnosis condition |
Engine running at idle |
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Signal (terminal) |
A/F sensor 1 heater (bank 1) signal |
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Threshold |
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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Diagnosis delay time |
-- |
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P0051 |
A/F SEN1 HTR (B2) (HO2S heater control circuit low bank 2 sensor 1) |
Diagnosis condition |
Engine running at idle |
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Signal (terminal) |
A/F sensor 1 heater (bank 2) signal |
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Threshold |
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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Diagnosis delay time |
-- |
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P0052 |
A/F SEN1 HTR (B2) (HO2S heater control circuit high bank 2 sensor 1) |
Diagnosis condition |
Engine running at idle |
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Signal (terminal) |
A/F sensor 1 heater (bank 2) signal |
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Threshold |
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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Diagnosis delay time |
-- |
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