G18: Check Harness Short To Ground

Measure the insulation resistance between EM012/016 and ground EM010/023.

Is the resistance > 10 Mohms?

Yes
GO to G19, G19: Check Harness Short Core to Core

No
Inspect harness/connectors EM012 and EM024 for corrosion, bent/pushed back pins.
Repair as required and reconnect plug(s).
GO to G20, G20: End