Quiet here.
Had a service call. Dead 95 gmc diesel. No glow plugs no fuel pump no communication with scan tool.
Tested another truck, both fuel pump relay positive circuits gone.
All fuses good.
Connect my circuit tracer and start following wire harness.
It shows circuit going off/on.
Getting close.
Directly below steering shaft is a harness,found a broken welded splice. 4 wires seperated.
Welded splice,wrapped in cloth tape. Corroded badly.
Customer is thrilled.