Check engine ecu truck doesn't start help!

disconnect small (front) engine ecm connector. If fuse blows - rewire engine ECM power supply. If not and blows when you connect ECM power supply connector - engine ECM is damaged with overvoltage ore wrong polarity. I used to repare faulty ECMs with this kind of damage

 

Ouh.... is it ISX - if yes - follow the previous message, if Volvo D13 - some other issues with internal ECM damage

 

Had the same problem....check wires from where they attach to battery. Mine had a kink in wire, yours might too. If fuse is blowing, your shorting out somewhere in that wire that leads from battery to ecm

 

Koo

 

Got ecu unit on volvo 780 2007 how do I get started to get to a shop.on 24west ILLINOIS

 

@Mrasheed You realize you posted like 4 times on a 7 YEAR OLD THREAD?????

go call a tow-truck...dang it