P06DE
DTC P06DD or P06DE
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptors
DTC P06DD
- Engine Oil Pressure Control Solenoid Valve Stuck Off
DTC P06DE
- Engine Oil Pressure Control Solenoid Valve Stuck On
Circuit/System Description
The engine oil pressure control solenoid is a two port solenoid valve used to control engine oil pressure inside the mechanical engine oil pump. The ECM controls the commanded states of the engine oil pressure control solenoid with the following ECM input's.
* Engine Speed
* Engine Oil Temperature (calculated from the Engine Coolant Temperature Sensor)
* Engine Oil Pressure
* Engine Run Time
With the engine oil pressure control solenoid commanded Off, engine oil pressure is higher. When commanded On engine oil pressure is lower. The purpose of this diagnostic is to isolate either a stuck on or stuck off engine oil pressure control solenoid.
Conditions for Running the DTC
P06DD
* DTC P0101, P0102, P0103, P0106, P0107, P0108, P0111, P0112, P0113, P0114, P0117, P0118, P0119, P0128, P0335, P0336, P0521, P0522, P0523, P06DA, P06DB, P06DC, P06DD, P06DE, P111E, P2227, P2228, P2229 or P2230 is not set.
* Engine speed within range of 1,500 RPM to 2,500 RPM.
P06DE
* DTC P0101, P0102, P0103, P0106, P0107, P0108, P0111, P0112, P0113, P0114, P0117, P0118, P0119, P0128, P0335, P0336, P0521, P0522, P0523, P06DA, P06DB, P06DC, P06DD, P06DE, P111E, P2227, P2228, P2229 or P2230 is not set.
* Engine running for greater than 20 s.
* Engine speed is within range of 1500 RPM to 2500 RPM.
* Engine oil pressure control solenoid in low pressure for greater than 1.5 s.
Conditions for Setting the DTC
P06DD or P06DE
Engine oil pressure is above or below a calibrated amount during the time the solenoid is changing from ON to OFF states.
Action Taken When the DTC Sets
P06DD
DTC P06DD is a Type B DTC.
P06DE
DTC P06DE is a Type A DTC.
Conditions for Clearing the DTC
P06DD
DTC P06DD is a Type B DTC.
P06DE
DTC P06DE is a Type A DTC.
Reference Information
Schematic Reference
Engine Mechanical Schematics (LCV or LTG) [1][2]Diagrams
Connector End View Reference
Component Connector End Views Sunshade - Left
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References Control Module References for scan tool information
Circuit/System Verification
1. Verify correct engine oil level and condition. Refer to Engine Mechanical Specifications (LCV) Engine Mechanical SpecificationsEngine Mechanical Specifications (LTG) Engine Mechanical Specifications.
2. Engine Running, verify the scan tool Engine Oil Pressure parameter changes when commanding the Engine Oil Pressure Control Solenoid On and Off.
• If the parameter does not change
Replace the Q44 Engine Oil Pressure Control Solenoid.
• If the parameter changes
3. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
4. Verify the DTC does not set.
• If the DTC sets
Refer to Oil Pressure Diagnosis and Testing Oil Pressure Diagnosis and Testing.
• If the DTC does not set
5. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the repair.
Oil Pump Flow Control Valve Replacement Oil Pump Flow Control Valve Replacement Engine Oil Pressure Control Solenoid Replacement