Adjust the engine idle speed periodically on the engine at normal operating temperature.
To adjust the idle speed:

Engine oil and filter change
Throtile cable playIsc valve preset and opening initialization
When removing or replacing the isc valve, set the isc
valve to the following procedures:
turn the ignition switch on.
Set up the sds tool. (Refer to the sds operation
manual for further details.)
Click the “active control”.
Click the “isc learned value reset” (1) ...
Cooling fan inspection
Cooling fan operating temperature
standard
(on → off): approx. 100 ?‹C (212 ƒ‹f)
(off → on): approx. 105 ?‹C (221 ƒ‹f)
Inspect the cooling fan in the following procedures:
disconnect the cooling fan motor coupler (1).
Test the cooling fan motor for load ...
Sds check
Using sds, sample the data at the time of new and periodic vehicle
inspections.
After saving the sampled data in the computer, file them by model and by user.
The periodically filed data help improve the accuracy of troubleshooting since
they can indicate the condition of vehicle
function ...