Details On DTCs
WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION AND POSSIBLE CAUSE
| DESCRIPTION |
P013A:00
- HO2S: Slow response (during transition from rich to lean)
P013B:00
- HO2S: Slow response (during transition from lean to rich)
|
| DETECTION CONDITION |
Determination conditions |
P013A:00
- The response speed of the HO2S input signal when the air/fuel ratio is fluctuated from rich to lean is slow.
|
P013B:00
- The response speed of the HO2S input signal when the air/fuel ratio is fluctuated from lean to rich is slow.
|
| Preconditions |
- Fuel injection control: during fuel cut (P013A:00)
- Catalytic converter estimated temperature: specified value or more
- HO2S estimated temperature: specified value or more
- HO2S output voltage during fuel cut: Specified value or more (P013A:00)
- HO2S output voltage at fuel cut recovery: Specification or less (P013B:00)
- The following DTCs are not detected:
- HO2S heater: P0037:00, P0038:00
- MAF sensor: P0102:00, P0103:00
- ECT sensor No. 1: P0117:00, P0118:00
- HO2S: P0137:00, P0138:00, P0140:00
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| Drive cycle |
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| Self test type |
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| Sensor used |
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| FAIL-SAFE FUNCTION |
|
| VEHICLE STATUS WHEN DTCs ARE OUTPUT |
- Illuminates check engine light.
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| POSSIBLE CAUSE |
- HO2S malfunction
- HO2S connector or terminals malfunction
- HO2S loose
- Exhaust system leakage
- TWC damaged or malfunction
- HO2S deterioration
- HO2S heater malfunction
- Improper operation of purge control system
- Purge solenoid valve malfunction
- Improper connection of evaporative hose (purge solenoid valve side)
- Fuel leakage in fuel line
- Engine malfunction
- Insufficient engine compression
- PCM malfunction
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