2013 - RT - DODGE CARAVAN - 3.6L V6 V.V.T.
P06DD-ENGINE OIL PRESSURE CONTROL CIRCUIT STUCK OFF
Theory of Operation
The engine oil pump features seven vanes and a moving element that continuously adjusts to maintain a regulated oil
pressure supply by varying the displacement of the pump. The pump has two regulated pressure stages of operation
controlled by an on/off solenoid. Low pressure mode regulation (solenoid on) is approximately 200 kPa (29 psi) and
high pressure mode regulation (solenoid off) is approximately 450 kPa (65 psi). The Powertrain Control Module (PCM)
switches the pump between stages based on engine operating conditions, oil and coolant temperatures, speed and load.
Under most typical conditions, the pump will run in low mode from idle up to around 3000 RPM and switch from low to
high mode between 3000 and 4000 RPM. The maximum oil pressure in the engine is limited to 1000 kPa (145 psi) by the
relief valve. Pressure in the main oil galley of the engine can be monitored with diagnostic equipment through the Engine
Oil Pressure (EOP) sensor. The minimum pressure for the engine is 41 kPa (6 psi) at any operating condition. Anything
under this pressure could result in damage to critical moving parts.
When Monitored and Set Conditions
When Monitored:
This diagnostic runs when the following conditions are met:
• The Dual Stage Oil Pump circuit fault and stuck high fault are not active.
• There are no active Engine Oil Pressure Sensor, CKP Sensor, Coolant Temperature Sensor or ASD Relay faults.
• Engine coolant temperature is above 15°C (59°F).
• Engine oil temperature is above 20°C (68°F).
• The engine speed between 1000 - 5000 rpm.
• Oil Pump Solenoid to be commanded on.
Set Conditions:
• The Powertrain Control Module (PCM) detects the oil pressure is below a calibrated minimum threshold with the
Oil Pump Solenoid commanded on for 20.0 seconds.
Default Actions:
• The MIL will illuminate.
Possible Causes
ENGINE OIL LEVEL LOW
INCORRECT ENGINE OIL FILTER
INSUFFICIENT OIL PRESSURE DUE TO A MECHANICAL FAILURE IN THE OILING SYSTEM
ENGINE MECHANICAL FAILURE
DUAL STAGE OIL PUMP
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. (Refer to 28 -
DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
1
1. CHECK FOR ANY SERVICE BULLETINS OR PCM SOFTWARE UPDATES
1. Check for any applicable Service Bulletins or Flash updates related to the DTC.
Are there any applicable Service Bulletins or Flash updates?
Yes • Perform the applicable repair.
• Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE,
Powertrain Control (PCM) - Standard Procedure).
No • Go To 2
2. CHECK FOR AN ACTIVE DTC
NOTE: Verify that the engine oil is at the proper level and that an OEM specified oil filter is being used. Review
the customers 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.
1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
2. For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
3. With the scan tool, erase all DTCs.
4. Turn the ignition off for a minimum of 10.0 seconds.
5. Turn the ignition on.
6. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set
the DTC.
Did the DTC return?
Yes • Go To 3
No • Perform the INTERMITTENT CONDITION diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/
MODULE, Powertrain Control (PCM) - Standard Procedure).
3. CHECK FOR RELATED DTCS
1. Refer to the recorded DTCs.
In addition to the P06DD fault code, are any of the following related fault codes present: P0520, P0521, P0522,
P0523, or P06DA?
Yes • Perform the applicable PCM diagnostic procedure(s). (Refer to 28 - DTC-Based Diagnostics/MODULE,
Powertrain Control (PCM)/Diagnosis and Testing).
No • Go To 4
4. CHECK THE ENGINE OIL
1. Turn the ignition off.
2. Check for the following but not limited to:
• LOW ENGINE OIL LEVEL
• AERATED ENGINE OIL
• INCORRECT ENGINE OIL FILTER (DOES NOT MEET OEM SPECIFICATIONS)
2
• DETERIORATED OR DIRTY OIL
• CONTAMINATED ENGINE OIL
• INCORRECT ENGINE OIL VISCOSITY
Were any of the above conditions present?
Yes • Repair the engine oiling system issue in accordance with the Service Information.
• Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE,
Powertrain Control (PCM) - Standard Procedure).
No • Go To 5
5. DUAL STAGE OIL PUMP
1. Check for the following but not limited to:
• OIL SLUDGE
• OIL PUMP PICK UP TUBE CRACKED OR MISSING O-RING
• OIL PUMP PICK UP SCREEN PLUGGED
• WARN MAIN OR ROD BEARINGS
• ANYTHING THAT COULD RESTRICT OIL FLOW OR CAUSE LOW OIL PRESSURE
Were any of the above conditions present?
Yes • Repair as necessary in accordance with the Service Information.
• Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE,
Powertrain Control (PCM) - Standard Procedure).
No • Replace the Dual Stage Oil Pump Assembly in accordance with the Service Information.
• Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE,
Powertrain Control (PCM) - Standard Procedure).
