Generator Load Input Out of Range (Ford)
What does P1244 mean?
The P1244 code means the vehicle's onboard diagnostic system has detected: Generator Load Input Out of Range (Ford). This is a moderate severity code.
Common Symptoms
- Check Engine Light on
- Battery warning light flickering
- Slight idle speed fluctuation
- Electrical accessories dimming briefly
- Reduced fuel economy
Probable Causes (Ranked by Likelihood)
- Alternator internal voltage regulator fault Very High
- Poor connection at alternator signal wire High
- Corroded battery terminals affecting charging feedback Moderate
- Worn alternator drive belt Moderate
- PCM generator load monitoring circuit fault Low
Step-by-Step Diagnostic Procedure
-
Test alternator output voltage and ripple with a multimeter
-
Inspect alternator signal wire at the PCM connector
-
Check battery terminals and cables for corrosion
-
Inspect alternator belt tension and condition
-
Monitor generator load PID on scan tool during various loads
Frequently Asked Questions
What does generator load input mean?
The PCM monitors the electrical load on the alternator to adjust idle speed and fuel delivery. P1244 means this feedback signal is outside the expected range.
Can P1244 cause my battery to die?
P1244 itself is a monitoring code, but the underlying alternator issue could cause charging problems that eventually discharge the battery.
Is P1244 an urgent repair?
Not immediately dangerous, but should be addressed within a few weeks. A failing alternator can leave you stranded.