Without Scan Tool
CHECK DTC (SENSOR CHECK)a. After the indicator check is completed, the system enters the DTC check mode automatically.
HINT:
- Press the OFF switch to cancel the check mode.
- In the sensor check mode, troubleshooting may be partially performed.Be sure to perform the actuator check and sensor check again.
b. Read the DTCs displayed on the panel (temperature display). Refer to the "Trouble Code Descriptions" when reading the codes.
c. If a slower display speed is desired, press the driver temperature up switch to change the Step No. display. Each press of the switch will change the step by 1.