OBD Guide
ENFRDEESPT

P1244

Alternator Load Input Failed High

P1244 is an OBD-II diagnostic trouble code meaning: Alternator Load Input Failed High. Common causes: generator malfunction, open or short circuit in the generator load circuit. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can 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

  1. Check the condition of the generator and its drive belt
  2. Test the generator load circuit for opens and short circuits
  3. Check generator relay and related fuses
  4. Scan the system for additional trouble codes
  5. Replace the generator if necessary
  6. Update ECU software (if required)

Related codes

P1243P1245P0620

Error P1244 by Vehicle Brand

AcuraFordHondaInfinitiLincolnMercurySubaruVolkswagen

FAQ

What does the P1244 code mean?

P1244 is an OBD-II diagnostic trouble code that indicates: Alternator Load Input Failed High

What causes a P1244 error code?

The most common causes of P1244 include: Generator malfunction; Open or short circuit in the generator load circuit; Generator relay problems; Load sensor fault.

How do I fix a P1244 diagnostic trouble code?

To fix P1244: 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. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1244?

Limited driving only, diagnose soon

How much does it cost to fix P1244?

The estimated repair cost for P1244 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat