Retrieve/Clear Continuous Memory DTCS: Description

Retrieve/CMDTCs is a functional test of the PCM. DTCs can be retrieved or cleared with the key on and the engine off or running. Unlike KOEO and KOER self-tests, which can only be activated on demand, the Continuous monitor is always active in monitoring the system. When a fault is detected, a DTC will be stored in memory to be retrieved at a later date, making it possible to diagnose intermittent faults. For California vehicles, P1000 DTC may be the only DTC displayed, indicating an incomplete OBD drive cycle (more drive time needed). For additional drive cycle information, see DRIVE CYCLE PROCEDURE . The Fuel Injection Control Module (FICM) monitors the injector circuits for a fault continuously. The FICM sends failure information via CAN communications and a PCM DTC is set. CMDTCs indicate the injector electrical system failure.