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.
KC16 CHECK THE FUEL PUMP CONTROL MODULE FOR CORRECT OPERATION
Note: During output state control, the fuel pump stays commanded on for only about 5 seconds. Be aware that output state control turns the FP off after a calibrated time. If this happens, command the output ON to continue testing.
• For DTC P2632,
• Fuel Pump Control Module 2 Module connector connected.
• Measure the voltage between:
( + ) FP Connector, Harness Side | ( - ) FP Connector, Harness Side |
|---|---|
FP2PWR | FP2RTN |
• For all others,
• Fuel Pump Control Module connector connected.
• Measure the voltage between:
( + ) FP Connector, Harness Side | ( - ) FP Connector, Harness Side |
|---|---|
FPPWR | FPRTN |
• Ignition ON, engine OFF.
• Access the PCM and control the FP (MODE) PID.
• Command the FP PID ON.
Does the voltage increase with the PID commanded ON?
Yes | No |
|---|---|
INSTALL a new FP. REFER to the Workshop Manual Section 310-01, Fuel Tank and Lines. 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. |
KC17 CHECK THE FUEL PUMP CONTROL MODULE RELAY FOR CORRECT OPERATION
Note: The Focus 2.3L and Mustang 5.2L are equipped with two fuel pump control module relays. Diagnose the fuel pump control module relay related to the current DTC.
• Carry out the fuel pump control module relay component test. Refer to the Wiring Diagrams Cell 149 Component Testing.
Is a concern present?
Yes | No |
|---|---|
INSTALL a new Fuel Pump Control Module relay. Clear the PCM DTCs. REPEAT the self- test. | GO to KC18 . |
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.