Test Procedure

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

HK1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)

NOTE: These DTCs may be accompanied by other DTCs. Diagnose all camshaft position (CMP) sensor DTCs first. If no CMP sensor related DTCs are present, continue to follow diagnosis for the DTC. If any CMP DTCs are present, GO to PINPOINT TEST DR . If no CMP DTCs are present, continue to follow this test.

Are DTCs P0010, P0011, P0012, P0016, P052A or P052B present?

Yes	No
For DTC P0010, GO to HK2. For all others, GO to HK10.	For symptoms without DTCs, GO to HK10. For all others, GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS .

HK2 DTC P0010: CHECK FOR VCT DTCS

NOTE: The engine should be at operating temperature before running the self-test.

Clear the DTCs.
Carry out the KOER self-test.

Is DTC P0010 present?

Yes	No
GO to HK4.	GO to HK3.

HK3 CARRY OUT A THOROUGH WIGGLE TEST ON THE VCT HARNESS

Carry out a thorough wiggle test on the VCT harness.
Carry out the KOER self-test.

Is DTC P0010 present?

Yes	No
GO to HK4.	GO to PINPOINT TEST Z .

HK4 CHECK THE VCT SOLENOID RESISTANCE

Ignition OFF.
VCT Solenoid connector disconnected.

Measure the resistance between:

(+) VCT Solenoid Connector, Component Side	(-) VCT Solenoid Connector, Component Side
VCT - Pin 2	VPWR - Pin 1

Is the resistance between 5 - 14 ohms?

Yes	No
GO to HK5.	INSTALL a new VCT solenoid. REFER to the ELECTRONIC ENGINE CONTROLS - HYBRID -- ESCAPE & MARINER . CLEAR the DTCs. REPEAT the self-test.

HK5 CHECK THE VCT SOLENOID FOR INTERNAL SHORTS

Measure the resistance between:

(+) VCT Solenoid Connector, Component Side	(-)
VCT - Pin 2	Ground

Is the resistance greater than 10K ohms?

Yes	No
GO to HK6.	INSTALL a new VCT solenoid. REFER to the ELECTRONIC ENGINE CONTROLS - HYBRID -- ESCAPE & MARINER . CLEAR the DTCs. REPEAT the self-test.

HK6 CHECK THE VPWR CIRCUIT FOR AN OPEN IN THE HARNESS

Ignition ON, engine OFF.

Measure the voltage between:

(+) VCT Solenoid Connector, Harness Side	(-)
VPWR - Pin 1	Ground

Is the voltage greater than 10 V?

Yes	No
GO to HK7.	REPAIR the open circuit. CLEAR the DTCs. REPEAT the self-test.

HK7 CHECK THE VCT CIRCUIT FOR A SHORT TO VOLTAGE IN THE HARNESS

Ignition OFF.
PCM connector disconnected.
Ignition ON, engine OFF.

Measure the voltage between:

(+) PCM Connector, Harness Side	(-)
VCT - Pin E67	Ground

Is the voltage less than 1 V?

Yes	No
GO to HK8.	REPAIR the short circuit. CLEAR the DTCs. REPEAT the self-test.

HK8 CHECK THE VCT CIRCUIT FOR AN OPEN IN THE HARNESS

Ignition OFF.

Measure the resistance between:

(+) VCT Solenoid Connector, Harness Side	(-) PCM Connector, Harness Side
VCT - Pin 2	VCT - Pin E67

Is the resistance less than 5 ohms?

Yes	No
GO to HK9.	REPAIR the open circuit. CLEAR the DTCs. REPEAT the self-test.

HK9 CHECK THE VCT CIRCUIT FOR A SHORT TO GND IN THE HARNESS

Measure the resistance between:

(+) VCT Solenoid Connector, Harness Side	(-)
VCT - Pin 2	Ground

Is the resistance greater than 10K ohms?

Yes	No
GO to HK14.	REPAIR the short circuit. CLEAR the DTCs. REPEAT the self-test.

HK10 CONTINUOUS DTCS P0011, P0012, P0016, P052A OR P052B: CHECK THE OPERATION OF THE VCT SYSTEM

NOTE: Some vehicles require higher RPM and loads to actuate the VCT system than others. The VCTADVERR PID should be close to zero whether actuating or not. During rapid VCT movements, the VCTADVERR PID may momentarily deviate from zero. In addition, normal deviation may momentarily move to the end of the scale on a rapid acceleration.

Access the PCM and monitor the VCTADV PID.
Access the PCM and monitor the VCTADVERR PID.
Drive the vehicle while exercising the throttle to generate VCT movement.

Does the VCTADV PID indicate VCT movement while the VCTADVERR PID maintain close to zero?

Yes	No
Unable to duplicate or identify the concern at this time.	If the engine runs rough at idle and KOER or Continuous Memory DTCs are present: GO to HK12. For all others, GO to HK11.

HK11 CHECK THE FUNCTIONALITY OF THE VCT SYSTEM

Ignition OFF.
VCT Solenoid connector disconnected.
Ignition ON, engine running.

Connect a 5 amp fused jumper wire between the following:

Point A VCT Solenoid Connector, Component Side	Point B Vehicle Battery
VCT - Pin 2	Negative terminal

Connect a 5 amp fused jumper wire between the following:

Point A VCT Solenoid Connector, Component Side	Point B Vehicle Battery
VPWR - Pin 1	Positive terminal

Does the engine reduce speed, run rough or stall with the jumper connected?

Yes	No
The concern is not present at this time. The concern may have been caused by an oil flow restriction which was removed by opening the VCT solenoid. CLEAR the DTCs. REPEAT the self-test.	GO to HK12.

HK12 CHECK THE FUNCTIONALITY OF THE VCT SOLENOID

Ignition OFF.

Connect a 5 amp fused jumper wire between the following:

Point A VCT Solenoid Connector, Component Side	Point B Vehicle Battery
VCT - Pin 2	Negative terminal

Connect a 5 amp fused jumper wire between the following:

Point A VCT Solenoid Connector, Component Side	Point B Vehicle Battery
VPWR - Pin 1	Positive terminal

Listen for an audible click in the VCT solenoid.
Repeat as necessary to verify the VCT solenoid click.

Does the VCT solenoid click?

Yes	No
GO to HK13.	INSTALL a new VCT solenoid. REFER to the ELECTRONIC ENGINE CONTROLS - HYBRID -- ESCAPE & MARINER . CLEAR the DTCs. REPEAT the self-test.

HK13 CHECK THE BASE ENGINE OIL PRESSURE

Check the base engine oil pressure. Refer to the ENGINE SYSTEM - GENERAL INFORMATION , Oil Pressure Test.

Are any concerns present?

Yes	No
REPAIR as necessary. CLEAR the DTCs. REPEAT the self-test.	INSTALL a new VCT phaser as necessary. REFER to the ENGINE - 2.5L-- HYBRID . CLEAR the DTCs. REPEAT the self-test.

HK14 CHECK FOR CORRECT PCM OPERATION

Disconnect all the PCM connectors.
Visually inspect for:
- pushed out pins
- corrosion
Connect all the PCM connectors and make sure they seat correctly.
Carry out the PCM self-test and verify the concern is still present.

Is the concern still present?

Yes	No
INSTALL a new PCM. REFER to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) , Programming the VID Block for a Replacement PCM.	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.