O2: Check Harness Core To Core Insulation

With EM010, EM011, PI006 and PI042 disconnected, measure the insulation resistance between EM010/021 and EM010/020
Repeat for EM011/012 and EM011/008
Repeat for EM011/011 and EM011/010

- All resistances> 10 M ohms?
Yes
GO to P1 P1: Check Ground Continuity
No
Inspect EM010, and EM011 for corrosion, bent/pushed back pins or locate and repair the harness/connector PI001.
GO to O3 O3: Stop