Engine Controls - Tests W/Codes: Description

Following procedures are functional tests of EEC system. These basic test steps must be followed in sequence to avoid misdiagnosis or replacement of non-faulty components.

• VISUAL CHECK & EQUIPMENT HOOKUP
• KOEO (KEY ON ENGINE OFF) SELF-TEST

After each service or repair procedure has been completed, repeat QUICK TEST to ensure all EEC system components work properly and trouble codes are no longer present.