I’ve been chasing this for a while now. I’ve asked it differnt ways, I’ve google for many hours. I’ve looked at many diagrams. I can’t seem to figure it out. So I guess the easiest way to ask this is what color are the wires on the passenger side head(grounds). Thanks in advance.

 

The only wire colors I've ever seen used as grounds in our cars is black for insulated wires, or these, if there is no insulation;

 

Iirc black with a white stripe and I think there is a tan wire too. Look at the 1227165 schematic or fsm ground distribution.

 

Would I be safe to assume D1-D3-D6 all ground to the cylinder head ?

 

All ecm grounds go to the cylinder head, iirc the only ground that goes to drivers side head is ALDL ground.

 

Thank you so much.