Details On DTCs
WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
| DESCRIPTION |
A/F sensor circuit slow response |
| DETECTION CONDITION |
Determination conditions |
- The response speed of the A/F sensor input signal when the air/fuel ratio is fluctuated is slow.
|
| Preconditions |
- Engine speed: Within specified range
- Charging efficiency: Within specified range
- Engine coolant temperature: Specified value or more
- Mass airflow: Within specified range
- The following DTCs are not detected:
- A/F sensor heater: P0031:00, P0032:00
- ECT sensor No. 1: P0117:00, P0118:00
- VSS signal: P0500:00
- Misfire: P0300:00, P0301:00, P0302:00, P0303:00, P0304:00
- Fuel injection correction: P0171:00, P0172:00, P2096:00, P2097:00
|
| Drive cycle |
|
| Self test type |
|
| Sensor used |
|
| FAIL-SAFE FUNCTION |
|
| VEHICLE STATUS WHEN DTCs ARE OUTPUT |
- Illuminates check engine light.
|
| POSSIBLE CAUSE |
- A/F sensor signal malfunction
- A/F sensor connector or terminals malfunction
- A/F sensor loose
- Exhaust system leakage
- A/F sensor deterioration
- A/F sensor heater malfunction
- PCM malfunction
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