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.
KC12 CHECK THE FPPWR AND FPRTN CIRCUITS FOR A SHORT TO GROUND
• Measure the resistance between:
( + ) Fuel Pump Control Module 2 Module Connector, Harness Side | ( - ) |
|---|---|
FP2PWR - Pin 5 | Ground |
FP2RTN - Pin 8 | Ground |
• For all others,
• Measure the resistance between:
( + ) Fuel Pump Control Module Connector, Harness Side | ( - ) |
|---|---|
FPPWR | Ground |
FPRTN | Ground |
Are the resistances greater than 10K ohms?
Yes | No |
|---|---|
GO to KC13 . | REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. |
KC13 CHECK FOR FPPWR AND FPRTN CIRCUITS SHORTED TOGETHER
• For DTC P2632,
• Measure the resistance between:
( + ) FP Connector, Harness Side | ( - ) FP Connector, Harness Side |
|---|---|
FP2PWR | FP2RTN |
• For all others,
• Measure the resistance between:
( + ) FP Connector, Harness Side | ( - ) FP Connector, Harness Side |
|---|---|
FPPWR | FPRTN |
Is the resistance greater than 10K ohms?
Yes | No |
|---|---|
GO to KC14 . | REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. |
KC14 CHECK THE FPPWR AND FPRTN CIRCUITS FOR A SHORT TO VOLTAGE
• Ignition ON, engine OFF.
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.