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P1237 Diagnostic Trouble Code Discussion for July 2010

Fuel Pump Secondary Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1237
Help Request Posted
2002 Ford Thunderbird 3.9L No Start VIN: 1FAHP60A72
P1237: Fuel Pump Secondary Circuit Malfunction. Hello fellow IATN Techs. I have here a 2002 Ford Thunderbird that has no start complaint, which is fuel related (no fuel pressure). Found Fuel Pump Fuse in trunk blown, replaced it, and checked remaining fuses, fuel pump relay, and fuel pump inertia switch. A...
July 19, 2010