Code Output
WARNING: This page is about a different car, the 1987 Mercury Cougar and 1987 Ford Thunderbird. However, it is still accessible from the selected car via links, so may be relevant.
Correct test results for system are dependent on the correct operation of several related non-EEC components and systems. It may be necessary to correct faults in these areas before EEC-IV will pass QUICK TEST .
Verify that vehicle has been properly prepared. See PREPARATION and EQUIPMENT HOOK-UP . Turn ignition on to start SELF-TEST. DO NOT depress throttle during test. Observe and record all service codes.
- If engine does not start, go to TEST A - NO START , step 2). If KOEO code and continuous memory indicate a pass (Code 11), go to TIMING CHECK .
- If any KOEO code is displayed with continuous memory code 11, KOEO SELF-TEST indicates a fault. Record codes and go to TEST RESULTS & ACTION TO TAKE in this test.
- If any KOEO or any continuous memory code is displayed, KOEO SELF-TEST and continuous memory indicate a fault. Record codes, but DO NOT repair continuous memory codes at this time. All KOEO and KOER SELF-TEST codes MUST be repaired first. Go to TEST RESULTS & ACTION TO TAKE in this test.
- If KOEO code 11 displayed with ANY continuous memory code (except 15), continuous memory indicates a fault. Record codes, but DO NOT repair continuous memory codes at this time. KOEO and KOER SELF-TEST codes MUST be repaired first. Go to TIMING CHECK .
- If KOEO code 11 is displayed and continuous memory code is 15, go to TEST NN - NO CODES/CODES NOT LISTED , step 11). If NO CODES are displayed, repeat SELF-TEST and verify that no service codes are present, then go to TEST NN - NO CODES/CODES NOT LISTED , step 1).