P1245 Audi 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 Audi 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.
Audi Vehicle:Audi A1,Audi A3,Audi A1,Audi A3,Audi A1,Audi A3,Audi A4,Audi A5,Audi Q3,Audi A5,Audi Q5,Audi A3,Audi A4,Audi A5,Audi TT,Audi Q3,Audi Q5,Audi S3,Audi TTS,Audi RS 3,Audi TT RS,Audi A7,Audi Q7,Audi A8,Audi A6,Audi S4,Audi S5,Audi Q5,Audi S6,Audi S8,Audi S5,Audi A8,Audi R8 V8,Audi RS 5,Audi S6,Audi R8 V10,Audi R8 GT,Audi A8L