Volvo Owners Club Forum - View Single Post - Not sure on cause of "ECM-1632 Alternator Faulty signal"

pinballdave · Dec 6th, 2022, 11:55

Depends which engine you've got. Some have digital alternator control via LIN bus from the CEM, the others have analogue control via a voltage from the ECU.

Dec 6th, 2022, 11:55	#2
pinballdave Member Last Online: Jun 7th, 2024 14:13 Join Date: Nov 2017 Location: Brighton	Depends which engine you've got. Some have digital alternator control via LIN bus from the CEM, the others have analogue control via a voltage from the ECU.