Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1999MUSTANG GT, 2D CONVERTIBLE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 24 (ENGINE CONTROLS - THEORY & OPERATION - GASOLINE & NGV)COMPUTERIZED ENGINE CONTROLSFUEL PUMP DRIVER MODULE
1999 Ford Mustang GT, 2D Convertible, Standard
Fuel Pump Driver Module
1999 Ford Mustang GT, 2D Convertible, StandardSECTION Fuel Pump Driver Module
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2002 Mercury Sable, 2002 Mercury Mountaineer, 2002 Mercury Grand Marquis, 2002 Mercury Cougar, and 2002 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
On LS and Thunderbird, Fuel Pump Driver Module (FPDM) functions are incorporated into Rear Electronic Module (REM). Fuel pump operation is same as applications using the stand-alone FPDM. REM will communicate diagnostic information through BUS (+) and BUS (-) circuits instead of using a fuel pump monitor circuit.
FPDM receives a duty-cycle signal from PCM and controls fuel pump operation in relation to this duty cycle. This results in variable fuel pump operation speed. The FPDM sends diagnostic information to PCM on fuel pump monitor circuit.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.