E6: Check For Short to B+

Ignition switch to position II
Measure the voltage between EM013/019 and EM013/027

- 0 volts?
Yes
GO to E7 E7: Check Sensor Continuity
No
Inspect EM013 and PI017 for corrosion, bent/pushed back pins or locate and repair the harness/connector PI001. Test the system for normal operation.