Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
HV4 CHECK THE ELECTRIC COOLING FAN ACTUATOR VALVE SOLENOID RESISTANCE
Note: If necessary, install pin adapters on the component side pins to carry out the resistance measurement.
• Ignition OFF.
• Cooling Fan Clutch connector disconnected.
• Measure the resistance between:
( + ) Cooling Fan Clutch Connector, Component Side | ( - ) Cooling Fan Clutch Connector, Component Side |
|---|---|
FCV - Pin 2 | VPWR - Pin 1 |
Is the resistance between 6 - 12 ohms?
Yes | No |
|---|---|
GO to HV5 . | INSTALL a new Cooling Fan. REFER to the Workshop Manual Section 303-03, Engine Cooling. Clear the PCM DTCs. REPEAT the self-test. |
HV5 CHECK THE ELECTRIC COOLING FAN ACTUATOR VALVE SOLENOID FOR A SHORT
• Measure the resistance between:
( + ) Cooling Fan Clutch Connector, Component Side | ( - ) |
|---|---|
FCV - Pin 2 | Ground |
Is the resistance greater than 10K ohms?
Yes | No |
|---|---|
GO to HV6 . | INSTALL a new Cooling Fan. REFER to the Workshop Manual Section 303-03, Engine Cooling. Clear the PCM DTCs. REPEAT the self-test. |
HV6 CHECK THE VPWR VOLTAGE TO THE ELECTRIC COOLING FAN ACTUATOR VALVE SOLENOID
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) Cooling Fan Clutch Connector, Harness Side | ( - ) |
|---|---|
VPWR - Pin 1 | Ground |
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.