P1245 Cadillac Alternator Load Input Failed Low
Possible causes
GEN-COM circuit short to GND.
GEN-MON circuit short to GND.
Open B+ wire during operation.
Low system voltage.
Broken generator belt.
Damaged generator/regulator assembly.
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)
P1245 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 low when no generator output 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