Intermittent Failures

Intermittent failures may cause CHECK ENGINE light to flicker, or illuminate and then go out after the intermittent fault goes away. The corresponding trouble code, however, will be retained in CIS-E control unit memory and MAS memory. If related fault does not reoccur within a certain time frame, related trouble code will be erased from CIS-E control unit memory. Intermittent failures may be caused by sensor, connector or wiring related problems. See INTERMITTENTS in the H - TEST W/O CODES article in this section.