DTC P250C-00: Engine Oil Level Sensor System: Circuit Malfunction (PYUL)
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P250C: 00 (PCM (PYUL)) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Engine oil level sensor system: Circuit malfunction |
| Detection condition |
Determination condition
- A communication error between the engine oil level sensor and the PCM continues for the specified time.
Precondition
- When all of the following conditions are met:
- Battery voltage: 10-16 V
- The following DTCs are not detected:
- Communication error between PCM and engine oil level sensor: U1100: 00
|
| Fail-safe |
|
| Vehicle status when DTCs are output |
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See CLEARING DTC
.)
- Start the engine.
|
| Inspection/action procedure |
- Proceed with the inspection/action in the order from Step 1 below.
- After part repair or replacement, perform the repeatability verifi cation procedure and perform a DTCinspection. (See DTC INSPECTION
)
- If the DTC inspection indicates the same DTC again, go to the next step.
- Inspect the wiring harness (including connector/terminal) between the sub relay and the engine oil levelsensor.
Purpose/reason (possible cause)
Malfunction in wiring harness (including connector/terminal) between sub relay and engine oil level sensor
Referred to workshop manual item
(See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Inspect the wiring harness (including connector/terminal) between engine oil level sensor and the PCM.
Purpose/reason (possible cause)
Malfunction in wiring harness (including connector/terminal) between engine oil level sensor and PCM
Referred to workshop manual item
(See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Replace the engine oil level sensor.
Purpose/reason (possible cause)
Engine oil level sensor malfunction (applicable part can not be inspected to determine integrity)
Referred to workshop manual item
(See ENGINE OIL LEVEL SENSOR REMOVAL/INSTALLATION
)
- Replace the PCM.
Purpose/reason (possible cause)
PCM malfunction (no other possible malfunction considered)
Referred to workshop manual item
(See PCM REMOVAL/INSTALLATION
)
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Refer to SYSTEM WIRING DIAGRAMS
.
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
Battery |
| 2 |
Sub relay |
| 3 |
Engine oil level sensor |
| 4 |
PCM |
| Function explanation (DTC detection outline) |
|