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.
REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. | INSTALL a new suspect Fuel Pump Control Module. REFER to the Workshop Manual Section 303-04, Fuel Charging and Controls. Clear the PCM DTCs. REPEAT the self-test. |
KC7 CHECK THE VPWR FUEL CIRCUIT FOR AN OPEN
• Ignition OFF.
• For DTCs P027B or U016C,
• Fuel Pump Control Module 2 Relay connector disconnected.
• Measure the resistance between:
( + ) Fuel Pump Control Module 2 Module Connector, Component Side | ( - ) Fuel Pump Control Module 2 Relay Connector, Harness Side |
|---|---|
VPWR Fuel - Pin 1 | VPWR Fuel |
• For Escape, Focus and Transit Connect,
• BCM-E connector disconnected.
• Measure the resistance between:
( + ) Fuel Pump Control Module Connector, Component Side | ( - ) BCM-E Connector, Harness Side |
|---|---|
VPWR Fuel | VPWR - Pin E9 |
• For all others,
• Fuel Pump Control Module Relay connector disconnected.
• Measure the resistance between:
( + ) Fuel Pump Control Module Connector, Harness Side | ( - ) Fuel Pump Control Module Relay Connector, Harness Side |
|---|---|
VPWR Fuel | VPWR Fuel |
Is the resistance less than 5 ohms?
Yes | No |
|---|---|
For Focus 2.3L with DTCs P027B or U016C, GO to KC17 . For Escape/Kuga, Focus, and Transit Connect, GO to KC8 . For all others, GO to KC17 . | For Motorhome / Stripped Chassis / Step Van, GO to KC27 . For all others, REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
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.