MasterTuning Fault code dictionary (DTC)

P1243 — Second Fuel Pump Faulty or Ground Fault

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningSecond Fuel Pump Faulty or Ground Fault.
FamilyPowertrain (P)

Frequently asked questions

What does code P1243 mean?

Second Fuel Pump Faulty or Ground Fault. Second Fuel Pump Faulty or Ground Fault.

Can I keep driving with code P1243 active?

With caution: limp mode possible, have it checked soon

How do you fix code P1243?

Diagnosis starts from reading the live ECU parameters: the code points to the fault area, not to the part to replace. A vehicle-electronics specialist can test the component and clear the code after the repair.

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