BB3: Check For Short To Ground

Ignition switch to position 0
Disconnect PI003

Below air intake

Ignition switch to position II
Measure the voltage between connector PI003/002 and ground (EM008L)

- 0 V?
Yes
Inspect harness/connector (PI001/015) for short to ground. Repair as necessary and test the system for normal operation.
No
GO to BB4 BB4: End