chacharoberts70
New member
Hey friends. Ok so I have a 2003 Duramax Diesel and can't for the life of me find the meaning of one of the relay's under the hood. It is the EDU relay. Anyone know what this stands for?:thankyou2:
Hey!
- Thread starter chacharoberts70
- Start date
Meyers Farms
Active member
It powers the FICM. Fuel injection control module.