What does code P1237 mean on Ford vehicles?
An electrical failure is detected in the fuel pump secondary circuit.
OBD-II Code Ford
P1237 — Ford — Fuel Pump Secondary Circuit Failure
An electrical failure is detected in the fuel pump secondary circuit.
Common symptoms
- Hard starting
- sudden engine shutdowns
Possible causes
- Damaged wiring
- faulty fuel pump
Initial recommendation
Inspect the secondary circuit and test fuel pump operation.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
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