Continuous Memory Codes

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NOTE: Continuous Memory DTCs should be recorded when retrieved. These DTCs may be used to identify intermittent concerns that exist after all KOEO and KOER DTCs have been repaired. Some Continuous Memory DTC faults may not be valid after KOEO and KOER DTCs are serviced.

Continuous Memory DTCs are retrieved after performing KOER ON-DEMAND SELF-TEST. Unlike KOEO or KOER self-tests, which can only be activated on-demand, Continuous Memory Self-Test is always active. A fault may or may not be present at time of checking for Continuous Memory DTCs. This self-test is helpful in diagnosing intermittent concerns.

After noting and/or repairing fault, clear DTCs from memory. See CLEARING CODES . Intermittent faults may be caused by a sensor, connector or wiring-related concern. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES - EEC-V - DIESEL article.