Contents Wiring diagrams Section: Testing & Diagnostics All sections

Engine Controls - Tests W/codes: Overview Mercury Villager I

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.

  1. VISUAL CHECK & EQUIPMENT HOOKUP
  2. 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.