What does code P1263 mean?

Q: What does code P1263 mean?

Cylinder 3 High To Low Side Short. P1263 on Ford vehicles indicates that the powertrain control module has detected a short circuit between the high and low sides of the fuel injector circuit for cylinder 3. This means the injector coil or its wiring is allowing current to flow directly from the high-side driver to the low-side return, bypassing the injector's normal resistance.

DTC codes / Ford codes / P1263

P1263 · FordCylinder 3 High To Low Side Short

P1263 on Ford vehicles indicates that the powertrain control module has detected a short circuit between the high and low sides of the fuel injector circuit for cylinder 3. This means the injector coil or its wiring is allowing current to flow directly from the high-side driver to the low-side return, bypassing the injector's normal resistance.

SystemPowertrain

Code typeFord specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

Guidance is general and written for Ford vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.