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Home >> Merkur >> 1988 >> XR4Ti Automatic >> Repair and Diagnosis >> Engine Performance >> System >> EEC-IV System >> Quick Test >> Key On/Engine Off Self-Test >> Code Output
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Code Output

Correct test results for system are dependent on the correct operation of several related non-EEC-IV 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  under DIAGNOSTIC PROCEDURE  . To start SELF-TEST, turn ignition on. 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 code 11 (pass), 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 see TEST RESULTS & ACTION TO TAKE  in this article.
  3. If any KEY ON/ENGINE OFF  codes or any continuous memory codes are displayed 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. See TEST RESULTS & ACTION TO TAKE  in this article.
  4. If KEY ON/ENGINE OFF  code 11 (pass), is displayed with ANY continuous memory code (except code 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 (pass), is displayed and continuous memory code 15 is displayed, go to CIRCUIT TEST NN  , step 11). If NO CODES are displayed, repeat SELF-TEST and verify that no service codes are present. If no service codes present, go to CIRCUIT TEST NN  , step 1).
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