DTC U1100-00: Lin Communication System: Communication Error Between Engine Oil Level Sensor And Pcm (PYUL)
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U1100: 00 (PCM (PYUL)) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
LIN communication system: Communication error between engine oil level sensor and PCM |
| Detection condition |
- A communication error between the PCM and the engine oil level sensor continues for the specified period of time.
Precondition
|
| Fail-safe |
|
| Possible cause |
- Malfunction in wiring harness (including connector/terminal) between sub relay and engine oil level sensor (See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Malfunction in wiring harness (including connector/terminal) between engine oil level sensor and PCM (See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Engine oil level sensor malfunction (Refer to [ENGINE OIL LEVEL SENSOR REMOVAL/INSTALLATION
]
).
- PCM malfunction (Refer to [PCM REMOVAL/INSTALLATION
]
).
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See CLEARING DTC
.)
- Start the engine.
|
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
Battery |
| 2 |
Sub relay |
| 3 |
Engine oil level sensor |
| 4 |
PCM |