Toyota Sienna Service Manual: Perform monitor drive pattern
The monitor results and test values can be checked with the OBD II scan tool or the intelligent tester. The engine control module (ECM) monitors the emissions-related components such as the thermostat, catalyst converter and evaporative emissions (EVAP), and determines whether they are functioning normally or not. When monitoring is finished, the ECM stores the monitor results and the test values. The monitor result indicates whether the component is functioning normally or not.
The test value is the value that was used to determine the monitor result. If the test value is outside of the test limit (malfunction criterion), the ECM determines the component is malfunctioning. Some emissions-related components have multiple test values to determine monitor result. If one of these test values is outside of the test limit, the ECM determines the component is malfunctioning.
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine and turn the tester on.
(c) Clear the DTCs.
(d) Run the vehicle in accordance with the applicable drive pattern described in READINESS MONITOR DRIVE PATTERN (See page ES-22). DO NOT turn the ignition switch off.
The test results will be lost if the ignition switch is turned off.
Checking monitor statusThe purpose of the monitor result (mode 06) is to allow access to the results for on-board diagnostic monitoring tests of specific components/systems that are not continuously monitored. Examples a ...
Access monitor result(A) select the following menus on the intelligent tester: diagnosis, enhanced obdii, monitor info and monitor result. The monitor status appears after the component name. INCMP: The component h ...
Catalyst System Efficiency Below Threshold
DTC P0420 Catalyst System Efficiency Below Threshold (Bank 1) DTC P0430 Catalyst System Efficiency Below Threshold (Bank 2) MONITOR DESCRIPTION The ECM uses the sensors mounted in front of and behind the three-way catalyst (TWC) to monitor its efficiency. The first sensor, an Air Fuel ratio ...
Data list / active test
1. DATA LIST The wireless door lock control data list can be displayed while the intelligent tester is connected to the DLC3 with the ignition switch in the ON position. Follow the prompts on the tester screen to access the DATA LIST. BODY: 2. ACTIVE TEST HINT: Performing the ACT ...
1. REMOVE REAR SEAT LEG COVER LH Remove the 2 screws and seat leg cover. 2. REMOVE REAR SEAT LEG COVER RH Remove the 2 screws and seat leg cover. 3. REMOVE REAR SEAT LEG SIDE COVER LH Remove the 2 screws and leg side cover. 4.