P1243 Possible Causes
- Faulty secondary fuel pump
- Secondary fuel pump circuit open or shorted
- Poor electrical connection in secondary fuel pump circuit
How is code P1243 repaired?
Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Check Engine Light on (or Service Engine Soon warning light)
P1243 Meaning
Secondary Fuel Pump Fault or Ground Fault is the generic description for code P1243, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we have no further information about the P1243 OBDII code.