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P1237 Diagnostic Trouble Code Discussion for January 2011

Fuel Pump Secondary Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1237
Help Request Posted
1999 Ford Mustang 3.8L No Start VIN: 1FAFP4046X
P1237: Open in fuel secondary. ... Same thing exactly. Code P1237 Megaohms resistance at both FP driver module and harness to fuel pump. Jump 12 volts direct to pump: nothing. Harness wiring very low resistance. How can it need ANOTHER new Motorcraft pump???
January 25, 2011
1999 Ford Mustang 3.8L No Start VIN: 1FAFP4046X
P1237: Open in fuel secondary. ... Same thing exactly. Code P1237 Megaohms resistance at both FP driver module and harness to fuel pump. Jump 12 volts direct to pump: nothing. Harness wiring very low resistance. How can it need ANOTHER new Motorcraft pump???
January 25, 2011