Toyota RAV4 manuals

Toyota Sienna Service Manual: Checking monitor status

The 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 are catalyst, evaporative emission (EVAP) and thermostat.

The monitor result allows the OBD II scan tool to display the monitor status, test value, minimum test limit and maximum test limit. These data are displayed after the vehicle has been driven to run the monitor.

When the test value is not between the minimum test limit and maximum test limit, the ECM (PCM) interprets this as a malfunction. When the component is not malfunctioning, if the difference of the test value and test limit is very small, the component will malfunction in the near future.

Perform the following instructions to view the monitor status.

Although the Lexus diagnostic tester is used in the following instructions, it can be checked using a generic OBD II scan tool. Refer to your scan tool operator's manual for specific procedures.

Write vin
(a) The VIN writing process is shown in the flowchart below. This process allows the VIN to be input into the ECM. If the ECM is changed, or the ECM VIN and Vehicle VIN do not match, the VIN can be ...

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 thermos ...

Other materials:

Crankshaft Position - Camshaft Position Correlation
DESCRIPTION Refer to DTC P0335 (See page ES-220). MONITOR DESCRIPTION DTC P0016 and P0018 The ECM optimizes the valve timing by using the VVT (Variable Valve Timing) system to control the intake camshaft. The VVT system includes the ECM, the Oil Control Valve (OCV) and the VVT contr ...

Setting the vehicle speed (vehicle-to-vehicle distance control mode)
Press the “ON-OFF” button to activate the cruise control. Dynamic radar cruise control indicator will be displayed. Press the button again to deactivate the cruise control. Accelerate or decelerate the vehicle to the desired speed, and push the lever down to set ...

Definition of terms
Terms Definitions Monitor Description Description of what ECM monitors and how to detect malfunctions (monitoring purpose and details). Related DTCs A group of diagnostic trouble codes that are output by ECM based on the same malfunction detection lo ...

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