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:
Correct use of the seat belts
Make sure that all occupants are wearing their seat belts before driving
the vehicle. Use a child restraint system appropriate for the child until the child
becomes large enough to properly wear the vehicle’s seat belt.
Adjusting the mirrors
Make sure that you can see backward clearly by adjus ...
Using the mechanical key (vehicles with a smart key system)
To take out the mechanical key,
push the release button and take
the key out.
The mechanical key can only be
inserted in one direction, as the
key only has grooves on one side.
If the key cannot be inserted in a
lock cylinder, turn it over and reattempt
to insert it.
After using t ...
Test mode procedure
1. SPEED SENSOR SIGNAL CHECK (WHEN USING SST CHECK WIRE):
HINT:
If the ignition switch is turned from the ON to the ACC
or LOCK position during Test Mode, the DTCs of the
signal check function will be erased.
(a) Turn the ignition switch off.
(b) Check that the steering wheel is in th ...
