P1631 Audi Communication Error Between From ECM To VSC
Possible causes
– Skid Control ECU / Engine Control Module (ECM) harness is open or shorted
– Skid Control ECU / Engine Control Module (ECM) circuit poor electrical connection
– Faulty Skid Control ECU
– Faulty Engine Control Module (ECM)
– Skid Control ECU / Engine Control Module (ECM) circuit poor electrical connection
– Faulty Skid Control ECU
– Faulty Engine Control Module (ECM)
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1631 Audi Description
The Skid Control Electronic Control Unit (ECU) sends signals such as cruise control cancel demand signals and brake operation demand from Engine Control Module (ECM) response signals to the ECM when the cruise control system is in operation.
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