P1244
Alternator Load Input Failed High
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)
Symptoms
- Check Engine Light Is On
- Battery charging problems
- Dim headlights at idle
- Unstable operation of electrical equipment
- Reduced engine performance
Causes
- Generator malfunction
- Open or short circuit in the generator load circuit
- Generator relay problems
- Load sensor fault
- Problems with the engine control module (ECU)
How to Fix
- Check the condition of the generator and its drive belt
- Test the generator load circuit for opens and short circuits
- Check generator relay and related fuses
- Scan the system for additional trouble codes
- Replace the generator if necessary
- Update ECU software (if required)