With SDT

NOTE: If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

TESTING CONDITION:

For best results, perform at ambient temperature of -10 °C (14 °F) or higher.
For best results, perform at engine coolant temperature of -10 °C (14 °F) to 56 °C (133 °F).
Before performing the following procedure, do not add fuel.

Turn A/C switch OFF.
Turn blower fan switch OFF.
Turn ignition switch ON.
Select "COOLAN TEMP/S" in "Data list" mode with SDT.
Check the indication of "COOLAN TEMP/S".
If it is below 56 °C (133 °F), go to next step.

If it is above 56 °C (133 °F), cool down the engine to less than 56 °C (133 °F). then go to next steps.
Start engine and drive vehicle for 10 consecutive minutes under the following conditions.
VEHICLE SPEEDS REFERENCE CHART

VHCL SPEED SE More than 56km/h (35 MPH)

CAUTION: Always drive vehicle at a safe speed.

NOTE: If "COOLAN TEMP/S" increases to more than 75 °C (167 °F) within 10 minutes, turn ignition switch OFF because the test result will be OK.
Check 1st trip DTC.
If 1st trip DTC is detected, go to [P0128 THERMOSTAT FUNCTION ].