DTC Advanced Diagnostics: P0522, P0523 (3.0L Engine)
DTC P0522: Engine Oil Pressure Sensor Circuit Low Voltage DTC P0523: Engine Oil Pressure Sensor Circuit High Voltage
General Description
The engine oil pressure sensor detects engine oil pressure and converts it into electrical signal. The engine oil pressure sensor outputs low signal voltage at low pressure and high signal voltage at high pressure. If the engine oil pressure output voltage is excessively high or low, the powertrain control module (PCM) detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 0.5 second or more |
| DTC Type | Two drive cycles, MIL on |
Enable Conditions
| Condition | |
|---|---|
| Vehicle | ON mode |
Malfunction Threshold
DTC: P0522
The engine oil pressure sensor output voltage [Rocker Arm Oil Pressure (EOP) Sensor Voltage] is 0.324 V* 1 (0.193 V)* 2 or less for at least 0.5 second.
DTC: P0523
The engine oil pressure sensor output voltage [Rocker Arm Oil Pressure (EOP) Sensor Voltage] is 4.813 V* 1 (4.872 V)* 2 or more for at least 0.5 second.
*1: USA and Canada models*2: Mexico models[ ]: HDS Parameter
Possible Cause
DTC: P0522
- Engine oil pressure sensor OPSEN line short to ground
- Engine oil pressure sensor VCC2 line open
- Engine oil pressure sensor VCC2 line short to ground
DTC: P0523
- Engine oil pressure sensor OPSEN line open
- Engine oil pressure sensor OPSEN line short to power
- Engine oil pressure sensor SG2 line open
Common
- Engine oil pressure sensor failure
- PCM internal circuit failure
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on and a Confirmed DTC, the freeze data, and the on-board snapshot are stored.
Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, the freeze data, and the on-board snapshot can be cleared with the scan tool clear command.