P0522

DTC P0522

Circuit Description

The engine oil pressure (EOP) sensor changes resistance based on engine oil pressure. The powertrain control module (PCM) monitors the signal circuit of the EOP sensor. When the oil pressure is high, the sensor resistance is high, and the PCM senses a high signal voltage. When the oil pressure is low, the sensor resistance is low, and the PCM senses a low signal voltage. The PCM sends the engine oil pressure information to the instrument panel cluster (IPC) via the class 2 serial data circuit.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0522 Engine Oil Pressure (EOP) Sensor Circuit Low Voltage

Conditions for Running the DTC

* The engine is running.
* DTC P0641 is not present.

Conditions for Setting the DTC

* The PCM detects that the EOP sensor signal circuit is less than 0.4 volt.
* The above condition is present for greater than 9 seconds.

Action Taken When the DTC Sets

* The PCM records the operating conditions at the time the diagnostic test fails. The PCM displays this information in the Failure Records on the scan tool.
* The IPC illuminates the engine oil pressure indicator.

Conditions for Clearing the DTC

* The DTC becomes history when the conditions for setting the DTC are no longer present.
* The history DTC clears after 40 malfunction-free warm-up cycles.
* The PCM receives a clear code command from the scan tool.

Diagnostic Aids

Using the Failure Records data may help locate an intermittent condition. If you cannot duplicate the DTC, the information in the Failure Records can help determine how many miles since the DTC set. The Fail Counter and Pass Counter can help determine how many ignition cycles that the diagnostic test reported a pass and/or a fail.

Refer to Testing for Intermittent Conditions and Poor Connections. Component Tests and General Diagnostics

Test Description

Step 1 - Step 5:

Step 6 - Step 12:

The number below refers to the step number on the diagnostic table.
4. This step tests for the proper operation of the circuit in the high voltage range.