Spn 629 fmi 8 durastar 4400 maxxforce 9

This truck came into the shop with hacked together battery system, the metal hold down was bridged to both positve and negative cables. The negative battery cable connectors to the harness have been eliminated by the lead tech here also (argument about jerry rigging between me and him happened)

The voltage reading disappears on my scanner intermintent and my aftertreatment data doubles in value than disappers.

Ive spent days scouring Mitchell and the internet, the international mechanics in Detroit arent friendly. Someone help me please ill buy you lunch if you help me fix it

 

Bump

 

Mitchell's tells me to look for the PIC timer fuse where is the PIC timer fuse located!

 

Will do left the shop

I took fender off and see a few inline fuses by the PDM they seem to be getting proper voltage, mitchells told me to check that pin you mentioned, but Mitchells doesnt supply a connector call out for this engine.

Also, ive been a lurker for years on this forum and i wanna thank all the hardened vets, catalogued topics you guys have created have saved my ### multiple times!

 

Are those the relays marked in white?