B15: Check For Short to B+

With EM010 & EM012 disconnected, measure the voltage between EM010/023 & EM012/015

Is the voltage 0 (zero) V?

Yes
Go to B16

No
Inspect connectors EM010, EM012, & EM021 for corrosion, damaged / pushed back pins or repair the harness, reconnect plug(s)
Go to B19