Ford Codes List

Ford-enhanced trouble code lookup
for Ford, Lincoln and Mercury.

Repair Order

655 Ford-enhanced codes on file

Code
P1244

Alternator Load Input Failed High

Category
Powertrain - Computer and Auxiliary Controls
Severity
Check Engine Light
Applies to
F-150, Explorer, Taurus with load-sensing alternators
Related
P0562 Charging System Voltage Low on OBD Codes List

Findings, check these first

  • Load input wire shorted to voltage
  • Failed alternator current sensor
  • Corroded load sense connector
  • Aftermarket electrical loads confusing the sense
  • PCM input fault

Standard procedure

  1. Inspect the load sense wiring for shorts
  2. Disconnect aftermarket accessories and retest
  3. Test the current sensor
  4. Check connector condition
  5. Verify normal input returns after repairs

Code lookup

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Sources and review

Review: checked against the recorded source material.

Last updated 2026-09-05.

Report a correction for P1244. Include your vehicle, the issue and a source if you have one.

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