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qe3: Disconnect Harness - Case Ground Check
Steps _Key Off
_Reconnect processor to breakout box, but disconnect harness from breakout box
_DVOM on 200 ohm scale
_Measure resistance between Test Pin 20 at the breakout box and metal case of processor
Result Is the resistance less than 5 ohms?
Direction YES

For 1.9L EFI GO to Continue. For 2.3L EFI TC and 2.5L CFI GO to Continue

NO

Remove breakout box. Replace processor. Rerun Quick Test.