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 MANUALSFORD2007ESCAPE BASE, 2.3 Z, FWD, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 230 (ENGINE CONTROLS - DESCRIPTION & OPERATION - (HYBRID))POWERTRAIN CONTROL MODULE (PCM) OUTPUTSFUEL PUMP (FP)
2007 Ford Escape Base, 2.3 Z, FWD, Automatic
Fuel Pump (FP)
2007 Ford Escape Base, 2.3 Z, FWD, AutomaticSECTION Fuel Pump (FP)
WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
The fuel pump (FP) signal is a duty cycle command sent from the PCM to the fuel pump driver module (FPDM). The FPDM uses the FP command to operate the fuel pump at the speed requested by the PCM or to turn the pump off.
FUEL PUMP DUTY CYCLE OUTPUT FROM PCM
| FP Duty Cycle Command | PCM Status | FPDM Actions |
|---|---|---|
| 0-5% | PCM will not output this duty cycle. | Invalid FP duty cycle. FPDM sends 25% duty cycle signal on the fuel pump monitor (FPM) circuit. The fuel pump is off. |
| 5-51% | Normal operation. | FPDM operates the fuel pump at the speed requested. FP duty cycle x 2 = pump speed % of full on. (for example FP duty cycle equals 42%. 42 x 2 equals 84. Pump is run at 84% of full on). FPDM sends 50% duty cycle signal on FPM circuit. |
| 51-67.5% | PCM will not output this duty cycle. | Invalid FP duty cycle. FPDM sends 25% duty cycle signal on the fuel pump monitor (FPM) circuit. The fuel pump is off. |
| 67.5-82.5% | To request the fuel pump off, the PCM outputs a 75% duty cycle. | Valid fuel pump off command from PCM. FPDM does not operate the fuel pump. FPDM sends a 50% duty cycle signal on the FPM circuit. |
| 82.5-100% | PCM will not output this duty cycle. | Invalid FP duty cycle. FPDM sends 25% duty cycle signal on the FPM circuit. The fuel pump is off. |
NOTE:
Also refer to FUEL PUMP MONITOR and FUEL PUMP DRIVER MODULE .
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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.