P1244 Alternator Load Input Failed High
What does P1244 mean on a Ford?
P1244 — Alternator Load Input Failed High. This Ford-enhanced code applies to F-150, Explorer, Taurus with load-sensing alternators.
Common causes of P1244
- Load input wire shorted to voltage
- Failed alternator current sensor
- Corroded load sense connector
- Aftermarket electrical loads confusing the sense
- PCM input fault
How to fix P1244
- Inspect the load sense wiring for shorts
- Disconnect aftermarket accessories and retest
- Test the current sensor
- Check connector condition
- Verify normal input returns after repairs