MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Powertrain Control-Emissions Diagnosis

KF: Fan Control Relays KF: Introduction

Powertrain Control-Emissions Diagnosis

Ford gasoline diagnostic supplementReference 5,296 / 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.

MFC

Ground

Is any voltage present?

Yes

No

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

For DTC P0482, GO to KF23 .

For all others, GO to KF18 .

KF18 CHECK THE FAN PWR CIRCUIT FOR AN OPEN

Note: Only measure the circuits that apply to the vehicle being diagnosed.

• Ignition OFF.

• For Ecosport and Fiesta 1.0L,

• Measure the resistance between:

( + ) FC1 Relay Connector, Harness

Side

( - ) Cooling Fan Motor 1 Connector, Harness

Side

FANPWR

FANPWR

• Measure the resistance between:

( + ) FC2 Relay Connector, Harness

Side

( - ) Cooling Fan Motor 1 Connector, Harness

Side

FANPWR

FANPWR

• For Focus 1.0L,

• Measure the resistance between:

( + ) Charge Air Cooler Cooling Fan Relay

Connector, Harness Side

( - ) Charge Air Cooler Cooling Fan Motor

Connector, Harness Side

FANPWR - Pin 5

FANPWR - Pin 1

• For all others FC1 relay,

• Measure the resistance between:

( + ) FC1 Relay Connector, Harness

Side

( - ) Cooling Fan Motor 1 Connector, Harness

Side

FANPWR

FANPWR

• For all others FC2 relay,

• Measure the resistance between:

( + ) FC2 Relay Connector, Harness

Side

( - ) Cooling Fan Motor 1 Connector, Harness

Side

FC

FC

Source reference 5296

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.