KOEO Self-Test
1) Start engine, and allow it to idle until it reaches operating temperature. If engine does not start or stalls after starting, continue KOEO SELF-TEST. DO NOT depress throttle.
2) Turn ignition off, and wait 10 seconds. Activate self-test procedure by using a jumper wire or appropriate test equipment. Turn ignition on, leaving engine off. Record all KOEO and Continuous Memory Codes.
3) If a Code 111 (pass code) is not received in KOEO portion of test, service KOEO codes. See KOEO SELF-TEST CODE REFERENCE table. If PCM will not output codes, go to CIRCUIT TEST QA. If service codes are received, proceed as follows:
- If CHECK ENGINE light was on when vehicle arrived for service, use recorded Continuous Memory Codes and CIRCUIT TEST listed in KOEO SELF-TEST CODE REFERENCE table before addressing any other symptoms.
- If Continuous Memory Code 215 is retrieved, go to CIRCUIT TEST N, step 3). If Continuous Memory Code 216, 217, 232 or 238 is retrieved during KOEO SELF-TEST, see IGNITION SYSTEM in appropriate I - SYS/COMP TESTS article. If Codes 215, 216, 217, 232 and 238 are not retrieved, go to CIRCUIT TEST S, step 2).
- If vehicle has a no-start condition, go to CIRCUIT TEST AA.
- If vehicle displays a Code 111 (pass code) and does not have any symptoms described in previous steps, go to COMPUTED TIMING CHECK.
KOEO SELF-TEST CODE REFERENCE
| Service Code | Circuit Test & Step No. | ||
|---|---|---|---|
| 112 | DA, Step 10) | ||
| 113 | DA, Step 10) | ||
| 114 | DA, Step 1) | ||
| 116 | DA, Step 1) | ||
| 117 | DA, Step 10) | ||
| 118 | DA, Step 10) | ||
| 121 | DH, Step 2) | ||
| 122 | DH, Step 6) | ||
| 123 | DH, Step 3) | ||
| 158 | DC, Step 15) | ||
| 159 | DC, Step 1) | ||
| 214 | DR, Step 1) | ||
| 218 | N, Step 1) | ||
| 222 | N, Step 1) | ||
| 226 | N, Step 2) | ||
| 327 | DL, Step 1) | ||
| 335 | DL, Step 8) | ||
| 336 | DL, Step 25) or 31) | ||
| 337 | DL, Step 25) or 31) | ||
| 341 | KP, Step 1) | ||
| 511 | (1) * | ||
| 513 | (1) * | ||
| 522 | TA, Step 1) | ||
| 525 | TA, Step 1) | ||
| 539 | KM, Step 13) | ||
| 542 | J, Step 6) | ||
| 543 | J, Step 11) | ||
| 556 | J, Step 1) | ||
| 558 | DL, Step 11) | ||
| 565 | KB, Step 1) | ||
| 621 | TB, Step 1) | ||
| 622 | TB, Step 1) | ||
| 626 | TB, Step 1) | ||
| 627 | TB, Step 1) | ||
| 629 | TB, Step 1) | ||
| 641 | TB, Step 1) | ||
| 652 | TB, Step 1) | ||
| 998 | Failure Mode Effects Management | ||
| No Codes Or Codes Not Listed | QA, Step 1) | ||
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