D12: Signal Ground 1 Continuity

With EM010 & EM014 disconnected, measure the resistance between EM010/023 & chassis ground EM1BR (EM2BR)

Is the resistance < 0.5 ohms

Yes
Go to D13

No
Inspect connector EM010 for corrosion, damage, or pushed back pin
Inspect ground stud EM1BR (EM2BR) for corrosion
Repair as required, harness, splice EMS38, connector or ground; reconnect plug(s)
Go to D14