Intermittent Failures
Intermittent failures may cause CHECK ENGINE light (if equipped) to flicker or illuminate and go out after the intermittent fault goes away. However, the corresponding trouble code will be retained in ECU memory. If related fault does not reoccur within 50 ignition switch operations, related trouble code will be erased from ECU memory. Intermittent failures may be caused by sensor, connector or wiring problems. See INTERMITTENTS in TESTS W/O CODES article.
NOTE:
Follow diagnostic routine when testing ECCS. See DIAGNOSTIC ROUTINE table for correct order of procedure.
DIAGNOSTIC ROUTINE
| Procedure | Order | ||
|---|---|---|---|
| Basic Diagnostic Procedures | 1st | ||
| Entering Diagnostics | 2nd | ||
| Retrieving Trouble Codes | 3rd | ||
| Symptoms (1) | 4th | ||
| Intermittents (1) | 5th | ||
|
|||