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DTC P250C-00: Engine Oil Level Sensor Power Supply Circuit Malfunction: Notes
DTC P250C:00 DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P250C:00 |
Engine oil level sensor power supply circuit malfunction |
| DETECTION CONDITION |
- A supply voltage error signal from the engine oil level sensor continues to be received for a specified time.
MONITORING CONDITIONS
- Battery voltage: 10-16 V
- Communication error between engine oil level sensor and PCM DTC U1100:00 not detected.
Diagnostic support note
- This is an intermittent monitor (other).
- The check engine light does not illuminate.
- FREEZE FRAME DATA is not available.
- Snapshot data is available.
- DTC is stored in the PCM memory.
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| FAIL-SAFE FUNCTION |
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| POSSIBLE CAUSE |
- Engine oil level sensor connector or terminals malfunction
- Short to ground or open circuit in engine oil level sensor power supply circuit
- Short to ground in wiring harness between ENGINE 3 15 A fuse and engine oil level sensor terminal A
- ENGINE3 15 A fuse malfunction
- Open circuit in wiring harness between main relay terminal C and engine oil level sensor terminal A
- PCM connector or terminals malfunction
- Short to ground in wiring harness between engine oil level sensor terminal C and PCM terminal 2BG
- Short to power supply in wiring harness between engine oil level sensor terminal C and PCM terminal 2BG
- Engine oil level sensor LIN communication line and ground circuit are shorted to each other
- Open circuit in wiring harness between the following terminals:
- Engine oil level sensor terminal C-PCM terminal 2BG
- Engine oil level sensor terminal B-PCM terminal 1CV
- Engine oil level sensor malfunction
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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