P0520 on Jeep Vehicles: Engine Oil Pressure Sensor/Switch Circuit
The engine computer gets a signal from the oil pressure sensor or switch that makes no electrical sense. P0520 →
13Complaints mentioning the code
#1Rank among 3 brands
2.1%Share of Jeep DTC complaints
In NHTSA owner complaints we analyzed for Jeep, P0520 was mentioned 13 times.
Notes by brand
On the 3.6L Pentastar V6 (also used in Dodge, Chrysler and Ram models) the oil pressure sensor sits on the oil filter housing in the engine valley, under the upper intake plenum. Replacing it means removing the plenum, and it is worth checking the plastic filter housing for leaks while it is exposed.
Most mentioned models
| Jeep Cherokee | 6 | |
|---|---|---|
| Jeep Grand Cherokee | 4 | |
| Jeep Wrangler Unlimited | 3 |
Model years mentioned
Components named in these complaints
- Engine (9)
- Electrical System (5)
- Fuel/propulsion System (3)
- Unknown Or Other (2)
- Wheels (1)
Often appears together with
Possible causes
- Failed oil pressure sensor or switch (internal fault or leaking diaphragm)
- Oil-soaked, corroded or loose connector at the sensor
- Harness chafed on a bracket, melted near the exhaust or chewed by rodents
- Oil pressure genuinely low or absent (low level, worn pump)
Related codes
- P0101 The MAF sensor's airflow reading doesn't match what the engine…
- P0113 The intake air temperature signal is stuck at maximum voltage, which…
- P0128 The engine takes too long to warm up, which almost always points…
- P0135 The heater inside the upstream oxygen sensor on bank 1 isn't working…
- P0171 The engine computer is adding the maximum extra fuel it's allowed…
Source: NHTSA Complaints API (US government open data), analyzed by DTC mention.