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P0231 Diagnostic Trouble Code Discussion for June 2005

Fuel Pump Feedback Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0231
Help Request Posted
2001 Ford Taurus SE 3.0L No Start VIN: 1FAFP53U21
P0231: Fuel Pump Relay Circuit. PCM will not command fuel pump relay on. I can ground this wire at the PCM and car will start and run fine. I checked CKP signal during cranking with lab scope; signal looks great. PATS system proves out OK; no light flash. Vehicle does not have aftermarket th...
June 10, 2005