Actuator Check

NOTE: This is the only information provided by the manufacturer for reading diagnostic trouble codes for this system.

PRE-CHECK




1. LIST OF OPERATION METHODS
By operating each of the A/C control switches as shown the diagram, it is possible to enter the diagnosis check mode.




2. INDICATOR CHECK
a. Turn the ignition switch ON while pressing the A/C control AUTO switch and R/F switch simultaneously.




b. Check that the indicators light up and go off at second intervals 4 times in succession.

HINT:
- After the indicator check is completed, the system enters the DTC begins automatically.
- Press the OFF switch when desiring to cancel the check mode.

3. DTC CHECK (SENSOR CHECK)




a. Perform an indicator check. After the indicator check is completed, the system enters the DTC check mode automatically.
b. Read the code displayed on the panel. Refer to the list of codes. (Trouble code are output at the temperature display.)




c. If the slower display is desired, press the FRONT DEF switch and change it to stepped operation. Each time the FRONT DEF switch is pressed, the display changes by 1 step.




4. CLEARING DTC
a. To clear diagnostic trouble code, there are 2 ways.
1. During sensor check, press the FRONT DEF switch and REAR DEF switch at the same time.
2. Pull the ECU-B fuse in engine room J/B for 20 sec. or longer to clear the DTC memory.

5. ACTUATOR CHECK




a. After entering the DTC check mode (Sensor Check Mode) press the R/F switch.
b. Since each damper, motor and relay automatically operates at 1 sec. intervals beginning in order from 10 in the temperature display, check the temperature and air flow visually and by hand.
If the slower display is desired, press the FRONT DEF switch and change it to step operation. Each time the FRONT DEF switch is pressed, the display changes by 1 step.






HINT:
- Code are displayed in order from the smaller to the larger numbers.
- To cancel the check mode, press the OFF switch.
ACTUATOR CHECK




a. After entering the DTC check mode (Sensor Check Mode) press the R/F switch.
b. Since each damper, motor and relay automatically operates at 1 sec. intervals beginning in order from 10 in the temperature display, check the temperature and air flow visually and by hand.
If the slower display is desired, press the FRONT DEF switch and change it to step operation. Each time the FRONT DEF switch is pressed, the display changes by 1 step.






HINT:
- Code are displayed in order from the smaller to the larger numbers.
- To cancel the check mode, press the OFF switch.