DTC P0520-12: Engine Oil Pressure Sensor/Switch "A" Circuit Short to Battery; DTC P0520-14: Engine Oil Pressure Sensor/Switch "A" Circuit Short to Ground or Open [10/2022 - 11/2023]: Description
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Variable oil pump control uses the oil pressure control valve assembly, engine oil temperature sensor, oil pressure sensor and ECM to optimize the oil pressure and oil volume required by each component to reduce friction by monitoring the engine temperature and engine speed. The oil pressure sensor utilizes a semiconductor type pressure sensor that changes resistance in accordance with changes in pressure. An internal electrical signal that varies with the change in resistance is amplified and sent to the ECM as the engine oil pressure signal.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P0520-12 | Engine Oil Pressure Sensor/Switch "A" Circuit Short to Battery | The oil pressure sensor output voltage is higher than 4.495 V for 5 seconds or more (1 trip detection logic). |
|
Comes on | DTC stored |
|
| P0520-14 | Engine Oil Pressure Sensor/Switch "A" Circuit Short to Ground or Open | The oil pressure sensor output voltage is less than 0.159 V for 5 seconds or more (1 trip detection logic). |
|
Comes on | DTC stored |
|
RELATED DATA LIST
| DTC No. | Data List |
|---|---|
| P0520-12 | Engine Oil Pressure |
| P0520-14 |