P1244 Cadillac Alternator Load Input Failed High

P1244 Cadillac Alternator Load Input Failed High

Possible causes
  • GEN-MON circuit short to B+.
  • GEN-COM circuit short to B+.
  • B+ open prior to start-up.
  • Open GEN-COM prior to start-up.
  • Open I-line prior to start-up.
  • Damaged PCM.

    • Tech description
  • Verify the battery voltage is 14.5 volts.
  • Verify the generator/regulator has the correct part number.

    • Symptoms
    – Engine Light ON (or Service Engine Soon Warning Light)
    P1244 Cadillac Description

    The PCM monitors generator load from the generator/regulator in the form of frequency. The fault indicates the input is lower than the load should be in normal operation. The load input could be high when a battery short to ground exists.

    Cadillac Vehicle:Cadillac CTS Coupe, Cadillac CTS-V Coupe , Cadillac Eldorado , Cadillac Escalade EXT , Cadillac ATS , Cadillac CTS , Cadillac CTS Sedan , Cadillac CTS Sport Sedan , Cadillac CTS-V , Cadillac CTS-V Sedan , Cadillac Catera , Cadillac DTS , Cadillac DeVille , Cadillac STS-V , Cadillac STS , Cadillac Seville , Cadillac XTS , Cadillac XLR , Cadillac XLR Platinum , Cadillac Escalade , Cadillac SRX