What does code P1264 mean?

Q: What does code P1264 mean?

Cylinder 4 High To Low Side Short. P1264 on Ford vehicles means the powertrain control module (PCM) has detected a short between the high and low sides of the fuel injector circuit for cylinder 4. The PCM monitors the injector driver circuit and sets this code when the voltage on the high side is pulled down toward the low side, indicating a short circuit within the wiring or the injector itself.

DTC codes / Ford codes / P1264

P1264 · FordCylinder 4 High To Low Side Short

P1264 on Ford vehicles means the powertrain control module (PCM) has detected a short between the high and low sides of the fuel injector circuit for cylinder 4. The PCM monitors the injector driver circuit and sets this code when the voltage on the high side is pulled down toward the low side, indicating a short circuit within the wiring or the injector itself.

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.