Code Output

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 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.

1. If engine does not start, go to CIRCUIT TEST A  , step 2). If KEY ON/ENGINE OFF code and continuous memory indicate a pass (Code 11), go to TIMING CHECK  .
2. If any KEY ON/ENGINE OFF code is displayed with continuous memory code 11, KEY ON/ENGINE OFF SELF-TEST indicates a fault. Record codes and go to TEST RESULTS & ACTION TO TAKE in this test.
3. If any KEY ON/ENGINE OFF or any continuous memory code is displayed, KEY ON/ENGINE OFF SELF-TEST and continuous memory indicate a fault. Record codes, but DO NOT  repair continuous memory codes at this time. All KEY ON/ENGINE OFF and ENGINE RUNNING SELF-TEST codes MUST be repaired first. Go to TEST RESULTS & ACTION TO TAKE in this test.
4. If KEY ON/ENGINE OFF code 11 is 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. KEY ON/ENGINE OFF and ENGINE RUNNING SELF-TEST codes MUST be repaired first. Go to TIMING CHECK  .
5. If KEY ON/ENGINE OFF code 11 is displayed and continuous memory code displayed is 15, go to CIRCUIT TEST NN  , step 11). If NO CODES are displayed, repeat SELF-TEST and verify that no service codes are present, then go to CIRCUIT TEST NN  , step 1).