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.
|
DTC No. |
CONSULT screen terms (Trouble diagnosis content) |
DTC detecting condition |
|
P014C |
A/F SENSOR1 (B1) (O2 sensor slow response - rich to lean bank 1 sensor 1) |
The response time of a A/F sensor 1 signal delays more than the specified time computed by ECM. |
|
P014D |
A/F SENSOR1 (B1) (O2 sensor slow response - lean to rich bank 1 sensor 1) |
|
|
P015A |
A/F SENSOR1 (B1) (O2 sensor delayed response - rich to lean bank 1 sensor 1) |
|
|
P015B |
A/F SENSOR1 (B1) (O2 sensor delayed response - lean to rich bank 1 sensor 1) |
|
|
P014E |
A/F SENSOR1 (B2) (O2 sensor slow response - rich to lean bank 2 sensor 1) |
|
|
P014F |
A/F SENSOR1 (B2) (O2 sensor slow response - lean to rich bank 2 sensor 1) |
|
|
P015C |
A/F SENSOR1 (B2) (O2 sensor delayed response - rich to lean bank 2 sensor 1) |
|
|
P015D |
A/F SENSOR1 (B2) (O2 sensor delayed response - lean to rich bank 2 sensor 1) |