Continuous Memory Codes (Soft Faults)

These codes indicate a fault that may or may not be present at the time of testing, and are used to diagnose intermittent problems. See appropriate charts under SERVICE CODE DEFINITION CHARTS for definitions of codes. Continuous Memory Codes are retrieved during the KOEO SELF-TEST. Some codes may illuminate the CHECK ENGINE or SERVICE ENGINE SOON light. The corresponding soft trouble code will be retained in the ECA memory. If the fault does not reoccur within 40 warm-up cycles (80 cycles on some models), ECA will automatically clear the code.

Service codes may be cleared from memory by the technician. See CLEARING CODES. Intermittent faults may be caused by a sensor, connector or wiring-related problems. See INTERMITTENTS in TESTS W/O CODES article in this section.

CAUTION: Continuous Memory Codes should be recorded when received during KOEO SELF-TEST. These codes may be used to identify intermittent problems that exist after all KOEO and KOER codes have been repaired, and a Code 11 or 111 (pass code) has been obtained in KOEO SELF-TEST and KOER SELF-TEST. Failure to follow this procedure may result in replacement of non-faulty components and unnecessary testing. Some Continuous Memory Codes faults may not be valid after KOEO and KOER codes are repaired.