Scheme 1
Scheme 2
Scheme 3
Scheme 4
MAGNETIC CLUTCH OPERATION
Connect the compressor terminal to battery (+) and the battery (-) terminal to the compressor body. Verify magnetic clutch operation by a clicking noise.
Scheme 5
OIL RETURN OPERATION
To check the oil level or add the oil, idle the engine for 20-30 minutes with the controls set to maximum cooling and blower level, to return the lubricant to compressor.
DESCRIPTION
The in-car sensor is located in A/C control assembly. The sensor contains a thermistor which measures the temperature of the air inside the passenger compartment. It perceives the passenger compartment temperature, changes the resistance value, and enters the corresponding voltage into the automatic temperature control module.
The photo sensor is located at the main crash pad. In response to photo intensity level in vehicle, the sensor will send signal to control module to control the blower level and discharge temperature.
The intake selection switch is located on the control panel. Pressing the switch will shift between recirculation and fresh air modes.
Scheme 6
Scheme 7
OPERATION METHOD (SELF-DIAGNOSIS)
The F.A.T.C. module self test feature will detect electrical malfunction and provide error codes for system components with suspected failures.
Scheme 8
DIAGNOSTIC TROUBLE CODE DESCRIPTION
Note. Without sun load, photo sensor error code displays.
- A/C system is darned OFF during self diagnosis. The result of self diagnosis is displayed using 2 digits of the temperature display.
- Diagnostic trouble codes are displayed during self diagnosis. However, after diagnosis is complete, relevant data is not stored in memory.
- Self diagnosis of photo sensor is performed using a light bulb over 60W placed within 40cm with sun load applied.
