Pinpoint Test Q: P06DA, P06DB, P06DC

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM P06DA:00	Engine Oil Pressure Control Circuit/Open: No Sub Type Information	This DTC sets when the PCM detects an open on the engine oil pressure control solenoid valve circuit.
PCM P06DB:00	Engine Oil Pressure Control Circuit Low: No Sub Type Information	This DTC sets when the PCM detects a short to ground on the engine oil pressure control solenoid valve circuit.
PCM P06DC:00	Engine Oil Pressure Control Circuit High: No Sub Type Information	This DTC sets when the PCM detects a short to voltage on the engine oil pressure control solenoid valve circuit.

Possible Sources

Communications network concern
Engine oil pressure control solenoid valve
PCM
Wiring, terminals or connectors

Q1 CHECK THE ENGINE OIL PRESSURE CONTROL SOLENOID VALVE SUPPLY VOLTAGE

Ignition OFF.

Disconnect Engine oil pressure control solenoid valve C1748.

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1748-1	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes

GO to Q2

No	VERIFY BJB fuse F8 (15A) is OK. If OK, REPAIR the open circuit. If not OK, REFER to OEM Electrical Wiring Diagram Introduction to identify the possible causes of the circuit short.

Q2 CHECK THE ENGINE OIL PRESSURE CONTROL SOLENOID VALVE CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect PCM C1551E.

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1748-2	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

GO to Q3

Q3 CHECK THE ENGINE OIL PRESSURE CONTROL SOLENOID VALVE CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1551E-7	Courtesy of FORD MOTOR COMPANY	C1748-2

Is the resistance less than 3 ohms?

Yes

GO to Q4

No	REPAIR the circuit.

Q4 CHECK THE ENGINE OIL PRESSURE CONTROL SOLENOID VALVE CIRCUIT FOR A SHORT TO GROUND

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1748-2	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to Q5

No	REPAIR the circuit.

Q5 CHECK THE ENGINE OIL PRESSURE CONTROL SOLENOID VALVE OPERATION
- NOTE: Engine oil level and contamination can affect the oil pressure reading.
  
  Check the engine oil level and correct as necessary.
- Connect PCM C1551E.
- Connect Engine oil pressure control solenoid valve C1748.
- Using a diagnostic scan tool, view the PCM PID EOP_PRESS.
- Start the engine.
- Record the EOP_PRESS PID reading.
- Ignition OFF.
- Disconnect Engine oil pressure control solenoid valve C1748.
- Start the engine.
- Record the EOP_PRESS PID reading.
- Ignition OFF.
Did the engine oil pressure increase by greater than 276 kpa (40 psi) with the solenoid disconnected?

Yes GO to Q6

No INSTALL a new oil pressure control solenoid valve. REFER to: Oil Pressure Control Solenoid

Q6 VERIFY ENGINE OIL PRESSURE CONTROL SOLENOID VALVE CONNECTION AND WIRING

Disconnect Engine oil pressure control solenoid valve C1748.

Disconnect PCM connectors.

Inspect connectors and wiring:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect all connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	REPAIR the circuit or connector as needed.

No	The system is operating correctly at this time. The concern may have been caused by loose module connections. ADDRESS the root cause of any connector or pin issues.