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.
( + ) Fuel Pump Control Module 2 Relay Connector, Harness Side | ( - ) |
|---|---|
GND | Ground |
• For all others,
• Measure the resistance between:
( + ) Fuel Pump Control Module Relay Connector, Harness Side | ( - ) |
|---|---|
GND | Ground |
Is the resistance less than 5 ohms?
Yes | No |
|---|---|
For Focus 2.3L, GO to KC21 . For all others, The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
KC21 CHECK THE FP CIRCUIT FOR AN OPEN
• For Focus 2.3L with DTCs P027B or U016C,
• BCM-E connector disconnected.
• Measure the resistance between:
( + ) Fuel Pump Control Module 2 Relay Connector, Harness Side | ( - ) BCM-E Connector, Harness Side |
|---|---|
FP | VPWR - Pin E9 |
• For Mustang 5.2L with DTCs P027B or U016C,
• BCM-F connector disconnected.
• Measure the resistance between:
( + ) Fuel Pump Control Module 2 Relay Connector, Harness Side | ( - ) BCM-F Connector, Harness Side |
|---|---|
FP | FP |
• For EcoSport,
• PCM connector disconnected.
• Measure the resistance between:
( + ) FP Relay Connector, Harness Side | ( - ) PCM Connector, Harness Side |
|---|---|
FP | FP |
• For Edge, Fusion, KA, MKZ and Transit,
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.