20
Key On Engine Running (KOER) Test Results
DYNAMIC ENGINE
ENGINE RESPONSE RUNNING
ID CODE CODE CODE ACTION TO TAKE:
2,3,4 or 5 1 11 No problems found by computer during KOER Self-
(or 111) Test, however…
•If Continuous Memory codes were obtained in
Self-Test Part 2, go to SELF-TEST PART 5:
Evaluate “Continuous Memory” codes.
•If Continuous Memory codes were NOT obtained
in Self-Test Part 2, BUT other vehicle symptoms are
still present, refer to Diagnosis by Symptom
Troubleshooting Charts in vehicle service manual.
(The faults are probably not related to the computer
system.)
•If Continuous Memory codes were NOT obtained in
Self-Test Part 2 and NO other vehicle symptoms are
present, the Self-Test Diagnostic Procedure is
complete.
2,3,4 or 5 1 Any Engine Running codes indicate system problems
Codes are present now. Write down all codes. Make repairs
based on Engine Running codes starting with the
first code received. (
Exception:
Take care of code
213 or 218 first, if received.) Refer to vehicle service
manual for code troubleshooting charts and repair
procedures. Repeat KOER Self-Test after every
repair. (Sometimes a repair procedure will eliminate
more than one code.)
98 Not sent Any Codes The Key On Engine Running Self-Test CANNOT be
(or 998) performed. The computer has spotted system
problems which must be repaired before running
this test. Go to Part 2: Key On Engine Off (KOEO)
Self-Test and follow all steps.
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