What does code P1244 mean?

Q: What does code P1244 mean?

Alternator Load Input Failed High. P1244 on Ford vehicles means the powertrain control module (PCM) has detected a high voltage condition on the alternator load input circuit, which is the signal the PCM uses to monitor how much electrical load the alternator is placing on the engine. The PCM expects this input to stay within a calibrated voltage window, and a sustained high reading tells the module that the alternator load signal is stuck at or above its upper limit.

DTC codes / Ford codes / P1244

P1244 · FordAlternator Load Input Failed High

P1244 on Ford vehicles means the powertrain control module (PCM) has detected a high voltage condition on the alternator load input circuit, which is the signal the PCM uses to monitor how much electrical load the alternator is placing on the engine. The PCM expects this input to stay within a calibrated voltage window, and a sustained high reading tells the module that the alternator load signal is stuck at or above its upper limit.

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.