DTC P250C Engine Oil Level Sensor Circuit Low (4JJ3 with DPD)

1. DTC P250C description

The oil level sensor is integrated with the oil temperature sensor, and it is installed at the left side of the crankcase. The ECM flows the rated current through the heating elements of the oil level sensor to change the resistance. The oil level sensor detects the engine oil level in the oil pan through the resistance of the heating elements. When the engine oil level is low, the resistance is high, and when the engine oil level is high, the resistance is low. The ECM detects a high voltage when the sensor resistance is high, and a low voltage when the sensor resistance is low. If the ECM detects an excessively low signal voltage, the DTC is set.

2. Condition for setting DTC P250C

Condition for running the DTC

The battery voltage is 9 to 16 V.
The ignition switch is ON.
The oil level sensor power supply is normal.
DTCs P0560, P0606, and P060B are not set.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC P0560 System Voltage".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC P0606 ECM/PCM Processor".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC P060B Internal Control Module A/D Processing Performance".

Condition for setting the DTC

The ECM detects that the oil level sensor (oil level) signal voltage is 1.5 V or less.

3. Action taken when DTC P250C sets

The ECM illuminates the SVS indicator light. Refer to Action taken when DTC sets - Type C.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".

The ECM assumes a default oil level sensor (oil level) value.

4. Condition for clearing DTC P250C

Refer to Condition for clearing the SVS indicator light/DTC - Type C.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".