AA3: Check Continuity Harness

Ignition switch to position 0
Disconnect EM012

Inside ECM housing

Disconnect PI003

Below air intake

With EM012 and PI003 disconnected, measure the resistance between EM012/007 and PI003/002

- Is the resistance < 0.5 ohms?
Yes
GO to AA4 AA4: Check Continuity Harness
No
Inspect harness/connector EM012, PI003 and PI001. Repair as necessary and test the system for normal operation.