Inspection 1. In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (GDS). (1) Self diagnosis : Checking failure and code number (DTC) (2) Current data : Checking the system input/output data state (3) Actuation test : Checking the system operation condition (4) Additional function : Controlling other features including system option setting and zero point adjustment 2.
Component Location
Inspection 1. Turn the ignition switch ON. 2. Connect the GDS. 3. Emit intensive light toward the photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher intensive light and fall with lower intensive light.
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the mode control actuator connector. 3. Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4. Verify that the mode control actuator operates to the vent mode when connected in reverse.