Quick Test 3.0 - Key ON, Engine OFF (KOEO)

DESCRIPTION
Some special considerations for Key On, Engine Off Quick Test include the following:
- The KOEO test provides hard Diagnostic Trouble Codes (DTCs) present at the time of testing.
- Always service the hard DTCs first.

PERFORMING KOEO
- Perform visual inspection and vehicle preparation as required.
- Select "Vehicle and Engine Selection" menu.
- Select year, engine, model with the appropriate qualifier if needed, for example, transmission or 49 State/California.
- Select "Diagnostic Data Link" menu.
- Select "Output Test Mode" menu.
- Select "KOEO On-Demand Self-Test".
- Follow operating instructions from the NGS menu screen.
- Record all DTCs displayed.
- Service NON-transmission DTCs first as they can directly affect the operation of the transmission. Road test and repeat Quick Test to verify the service.