DTC Detection Logic
To judge malfunctions, this diagnosis measures response time of the A/F signal computed by ECM from the A/F sensor 1 signal. The time is compensated by engine operating (speed and load), fuel feedback control constant, and the A/F sensor 1 temperature index. Judgment is based on whether the compensated time (the A/F signal cycling time index) is inordinately long or not.
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P014C |
A/F SENSOR1 (B1) [Air fuel ratio (A/F) sensor 1 (bank 1) circuit slow response] |
Diagnosis condition |
-- |
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Signal (terminal) |
Air fuel ratio sensor 1 signal |
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Threshold |
The response time of a A/F sensor 1 signal delays more than the specified time computed by ECM |
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Diagnosis delay time |
-- |
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P014D |
A/F SENSOR1 (B1) [Air fuel ratio (A/F) sensor 1 (bank 1) circuit slow response] |
Diagnosis condition |
-- |
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Signal (terminal) |
Air fuel ratio sensor 1 signal |
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Threshold |
The response time of a A/F sensor 1 signal delays more than the specified time computed by ECM |
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Diagnosis delay time |
-- |
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P015A |
A/F SENSOR1 (B1) [Air fuel ratio (A/F) sensor 1 (bank 1) circuit delayed response] |
Diagnosis condition |
-- |
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Signal (terminal) |
Air fuel ratio sensor 1 signal |
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Threshold |
The response time of a A/F sensor 1 signal delays more than the specified time computed by ECM |
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Diagnosis delay time |
-- |
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P015B |
A/F SENSOR1 (B1) [Air fuel ratio (A/F) sensor 1 (bank 1) circuit delayed response] |
Diagnosis condition |
-- |
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Signal (terminal) |
Air fuel ratio sensor 1 signal |
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Threshold |
The response time of a A/F sensor 1 signal delays more than the specified time computed by ECM |
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Diagnosis delay time |
-- |
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P014E |
A/F SENSOR1 (B2) [Air fuel ratio (A/F) sensor 1 (bank 2) circuit slow response] |
Diagnosis condition |
-- |
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Signal (terminal) |
Air fuel ratio sensor 1 signal |
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Threshold |
The response time of a A/F sensor 1 signal delays more than the specified time computed by ECM |
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Diagnosis delay time |
-- |
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P014F |
A/F SENSOR1 (B2) [Air fuel ratio (A/F) sensor 1 (bank 2) circuit slow response] |
Diagnosis condition |
-- |
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Signal (terminal) |
Air fuel ratio sensor 1 signal |
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Threshold |
The response time of a A/F sensor 1 signal delays more than the specified time computed by ECM |
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|
Diagnosis delay time |
-- |
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P015C |
A/F SENSOR (B2) [Air fuel ratio (A/F) sensor 1 (bank 2) circuit delayed response] |
Diagnosis condition |
-- |
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Signal (terminal) |
Air fuel ratio sensor 1 signal |
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|
Threshold |
The response time of a A/F sensor 1 signal delays more than the specified time computed by ECM |
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|
Diagnosis delay time |
-- |
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P015D |
A/F SENSOR (B2) [Air fuel ratio (A/F) sensor 1 (bank 2) circuit delayed response] |
Diagnosis condition |
-- |
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Signal (terminal) |
Air fuel ratio sensor 1 signal |
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|
Threshold |
The response time of a A/F sensor 1 signal delays more than the specified time computed by ECM |
||
|
Diagnosis delay time |
-- |
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