P06DE Engine Oil Pressure Control Circuit Stuck On

P06DE code - The Powertrain Control Module (PCM) senses the oil pressure is above a calibrated minimum threshold with the Oil Pump Solenoid commanded off for 250.0 seconds. Battery voltage is above 10.9 volts, the Dual Stage Oil Pump circuit fault and stuck high fault are not active, there are no active Engine Oil Pressure sensor faults, engine running and the Oil Pump Solenoid is commanded off. When the engine oil temperature is lower, the engine speed necessary to enable the Dual Stage Oil Pump will be lower. The minimum engine speed can be between 1000-3500 rpm depending on oil temperature.  Default action the MIL light illuminate.

P06DE-Engine Oil Pressure control circuit stuck on


Possible causes P06DE code:
  • Engine mechanical failure.
  • Engine oil pressure sensor.
  • Dual stage oil pump.

Diagnostic test P06DE code

Step 1. Check for an active DTC
Ensure that the engine oil is at proper level and ensure that an OEM specified oil filter is being used. Also, review the customer oil change history to make sure that the oil is being changed at the correct intervals and that the proper oil viscosity is being used. Star the engine and allow it to reach normal operating temperature.

Warning : When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belt or fan.Do not wear loose clothing. Failure to follow these instructions may result in possible serious fatal injury. 

Next test drive or operate the vehicle in accordance with the when monitored and set conditions. With the scan tool, read DTC

Is the DTC active or pending P06DE code ?

YES, go to step 2.

NO, perform the PCM intermittent condition.

Step 2. Check for related DTC
Test drive or operate the vehicle in accordance with the when monitored and set conditions.

In addetion to the P06DE fault code, are any of the following realted fault codes pending, active, or stored : P0520, P0521, P0522, P0523, or P06DA ?

YES, perform diagnostic procedure for any of the above fault codes that are present.
NO, go to step 3.

Step 3. Engine oil/engine mechanical
Turn the ignition off, the following items be checked before continuing with this procedure. Failure to do so may lead to misdiagnosis :
  • Low engine oil level.
  • Aerated engine oil.
  • Incorrect engine oil filter (does not meet OEM specifications).
  • Deteriorated or dirty oil.
  • Contaminated engine oil.
  • Incorrect engine oil viscosity.

Where any of the above conditions present ?

YES, repair the engine oiling mechanical condition (improper oil drain back, oil sludge, demaged oil pump, pick-up tube or seal, etc).

NO, go to step 4.

Step 4. Dual Stage Oil Pump
Replace the Oil Pressure Sensor, next turn the ignition on, with the scan tool erase the DTC. Test drive or operate the vehicle in accordance with the when monitored and set conditions. With the scan tool, read DTC and record on the repair order.

Did the DTC return P06DE code ?

YES, replace the Dual Stage Oil Pump assembly. Perform the Powertrain verification test.
NO, test complete, perform the Powertrain verification test.

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