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 DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - POWERTRAIN DTC CHARTS AND DESCRIPTIONS (EXCEPT DIESEL & HYBRID)DTC DIAGNOSISP0231 - FUEL PUMP SECONDARY CIRCUIT LOW
2007 Ford Escape Base, 2.3 Z, FWD, Automatic
P0231 - Fuel Pump Secondary Circuit Low
2007 Ford Escape Base, 2.3 Z, FWD, AutomaticSECTION P0231 - Fuel Pump Secondary Circuit Low
P0231 - FUEL PUMP SECONDARY CIRCUIT LOW
| Description: | The powertrain control module (PCM) monitors the fuel pump monitor (FPM) circuit. The test fails if the PCM commands the fuel pump ON and B+ voltage is not detected on the FPM circuit. | |||
| Possible Causes: |
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| Diagnostic Aids: | During the key on engine off (KOEO) self-test, the PCM commands the fuel pump ON so this test can be carried out. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | refer to PINPOINT TEST KA . | |||
RENDER: 1.0x
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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.