MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Powertrain Control-Emissions Diagnosis

KN: Variable Speed Electric Cooling Fan

Powertrain Control-Emissions Diagnosis

Ford gasoline diagnostic supplementReference 5,310 / 6,619HTML edition
← Chapter contentsProcedure contents

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.

GND - Pin 1

Ground

• Measure the resistance between:

( + ) Cooling Fan Motor 2 Connector, Harness Side

( - ) PCM Connector, Harness Side

FCV - Pin 4

FCV

• Measure the resistance between:

( + ) Cooling Fan Motor 2 Connector, Harness

Side

( - ) FC1 Relay Connector, Harness

Side

FANPWR - Pin 2

FANPWR - Pin 5

• For Escape and Focus,

• Measure the resistance between:

( + ) CF Module Connector, Harness Side

( - )

GND - Pin 2

Ground

• Measure the resistance between:

( + ) CF Module Connector, Harness Side

( - ) PCM Connector, Harness Side

FCV - Pin 4

FCV

• Measure the resistance between:

( + ) FC Relay Connector, Harness Side

( - ) CF Module Connector, Harness Side

FANPWR

FANPWR - Pin 1

• For all others,

• Measure the resistance between:

( + ) CF Module Connector, Harness Side

( - )

GND - Pin 2

Ground

• Measure the resistance between:

( + ) CF Module Connector, Harness Side

( - ) PCM Connector, Harness Side

FCV - Pin 4

FCV

Are the resistances less than 5 ohms?

Yes

No

GO to KN10 .

REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test.

Source reference 5310

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.