Engine Controls - Tests W/Codes - 4.0L: Description

Following procedures are functional tests of EEC-V system. These basic test steps must be followed in sequence to avoid misdiagnosis.

• Visual Check
• Equipment Hookup
• KOEO (Key On Engine Off) SELF-TEST
• KOER (Key On Engine Running) SELF-TEST
• Computed Timing Check
• Continuous Memory Self-Test