Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Tundra 2000-2006 Approved 04-06 techinfo.toyota.com ileaf 06toyrm 06toypdf 06rmsrc 06tundra di eg2uzfe dot

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                                                                                                                                         DI-421
                                                   DIAGNOSTICS        -   ENGINE (2UZ-FE)
                                                                                                                                           DIDQR-01


DEFINITION OF TERMS
            Term                                                                  Definition
Monitor description          Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and its details).
Related DTCs                 A group of diagnostic trouble codes that are output by the ECM based on the same malfunction detection logic.
                             Preconditions that allow the ECM to detect malfunctions.
Typical enabling condition   With all preconditions satisfied, the ECM sets the DTC when the monitored value(s) exceeds the malfunction
                             threshold(s).
                             The priority order that is applied to monitoring, if multiple sensors and components are used to detect the malfunc-
                             tion.
Sequence of operation
                             When a sensor is being monitored, the next sensor or component will not be monitored until the sensor monitoring
                             is finished.

Required sensor/compo-
                             The sensors and components that are used by the ECM to detect malfunctions.
nents

                             The number of times that the ECM checks for malfunctions per driving cycle.
Frequency of operation       "Once per driving cycle" means that the ECM detects the malfunction only one time during a single driving cycle.
                             "Continuous" means that the ECM detects malfunction every time an enabling condition is met.
                             The minimum time that the ECM must sense a continuous deviation in the monitored value(s) before setting a
Duration
                             DTC. This timing begins after the "typical enabling conditions" are met.

Malfunction thresholds       Beyond this value, the ECM will conclude that there is a malfunction and set a DTC.
                             MIL illumination timing after a defect is detected.
                             "Immediately" means that the ECM illuminates MIL the instant the ECM determines that there is a malfunction.
MIL operation
                             "2 driving cycle" means that the ECM illuminates MIL if the same malfunction is detected again in the 2nd driving
                             cycle.

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