Help me with my oil tanks auto transfer issues...

[carboncow]

see how simple this is???
the tach pretty much told me what was wrong.

The part that confused me was I had assumed that the black ground was required for the pump to even run...and since it was running in manual mode it was good. Once I understood that the pump had it's own ground I decided to retest the loom.

[rodbolt17]

blue wire is pump ground path.
black and black/red is SWB path.
once the switch,or a circuit breaks, opens the yellow lamp/center bar,arrow lights up.
this is to alert the operator to please refill the remote tank as somehow you went through 2.9 gallons of oil and it needs more.

if the ECU sees that open circuit it prohibits auto transfer but will allow manual transfer,
all manual transfer does is bypass the ECU and takes the blue wire directly to ground.
that's why if rigged correctly trouble shooting is so much easier.