B5: Check For Short to B+

With EM015, EM010 and EM039 disconnected, measure the voltage between EM015/003 and ground EM010/022.

- 0 V?
Yes
GO to B6 B6: Check For Short to Ground
No
Inspect harness/connectors EM010, EM039, EM019 and splice EMS30 for bent/pushed back pins, damage or corrosion. Repair as necessary and test the system for normal operation.