Terms Definition
WARNING: This page is about a different car, the 2003 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
- Related DTCs
The regulation items that OBD II controls. - Typical Enabling Condition
Preconditions that allow the engine control module (ECM) to detect malfunction. With all preconditions satisfied, the ECM sets DTC when the monitoring value(s) exceeds the malfunction threshold(s). - Sequence Of Operation
The priority order that is applied to monitoring, if multiple sensors and components are used to detect malfunction. When another sensor is being monitored, the next sensor or component will not be monitored until the previous monitoring is concluded. - Required Sensor/Components
The sensors and components that are used to detect malfunction by the ECM. - Frequency Of Operation
The number of times that the ECM detects malfunction per driving cycle. Once per driving cycle means that the ECM detects malfunction only 1 time during a signal driving cycle. Continuous means that the ECM detects malfunction every time the monitoring value(s) exceeds or deviates from the threshold during a single driving cycle. - Duration
Required length of time that enables the ECM to set DTC if the monitoring value(s) exceeds or deviates from the threshold under Typical Enabling Condition. - Malfunction Thresholds
The value(s) that determined the ECM to conclude that it is a malfunction. - MIL Operation
Conditions that let the ECM illuminate MIL. Immediately means that the ECM illuminates MIL the instant the ECM determines that it is a malfunction. Two driving cycle means that the ECM illuminates MIL if the same malfunction is detected in the 2nd driving cycle.