MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Powertrain Control-Emissions Diagnosis

KC: Fuel Pump Control Module KC: Introduction

Powertrain Control-Emissions Diagnosis

Ford gasoline diagnostic supplementReference 5,271 / 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.

• For DTC P2632,

• Measure the voltage between:

( + ) Fuel Pump Control Module 2 Module Connector, Harness Side

( - )

FP2PWR - Pin 5

Ground

FP2RTN - Pin 8

Ground

• For all others,

• Measure the voltage between:

( + ) Fuel Pump Control Module Connector, Harness Side

( - )

FPPWR

Ground

FPRTN

Ground

Is any voltage present?

Yes

No

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

GO to KC15 .

KC15 INTERMITTENT CHECK

• Ignition OFF.

• For DTC P2632,

• Measure the resistance between:

( + ) Fuel Pump Control Module 2 Module Connector,

Harness Side

( - ) FP Connector, Harness

Side

FP2PWR - Pin 5

FP2PWR

FP2RTN - Pin 8

FP2RTN

• For all others,

• Measure the resistance between:

( + ) Fuel Pump Control Module Connector, Harness

Side

( - ) FP Connector, Harness

Side

FPPWR

FPPWR

FPRTN

FPRTN

• While monitoring the resistance measurement, wiggle, shake, and bend small sections of the wiring harness while working from the FP to the fuel pump control module.

Is a concern present?

Yes

No

REPAIR as necessary.

Clear the PCM DTCs. REPEAT the self-test.

GO to KC16 .

Source reference 5271

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.