Details On DTCs
WARNING: This page is about a different variant/trim than selected.
DTC P2251:00 (PCM, SKYACTIV-G, US) DETECTION CONDITION AND POSSIBLE CAUSE
| Description |
Open circuit between A/F sensor terminal D and PCM terminal 1S |
| Detection condition |
Determination conditions |
- The following conditions are met:
- A/F sensor element impedance is specified value or more
- A/F sensor terminal F voltage (B+ terminal) is less than specified value or unstable.
|
| Preconditions |
- Battery voltage: 11-18 V
- A/F sensor is activated.
- The following DTCs are not detected:
- A/F sensor terminal F voltage (B+ terminal) is less than specified value:
- A/F sensor heater: P0031:00 and P0032:00
- A/F sensor terminal F voltage (B+ terminal) is unstable:
- Internal PCM malfunction: P064D:00
|
| Drive cycle |
|
| Self test type |
- CMDTC self test, KOER self test
|
| Sensor used |
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| Fail-safe function |
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| Vehicle status when DTCs are output |
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| Possible cause |
- A/F sensor connector or terminals malfunction
- PCM connector or terminals malfunction
- Open circuit in A/F sensor signal circuit
- A/F sensor malfunction
- PCM malfunction
|
 Courtesy of MAZDA MOTORS CORP.
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