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Home >> Hyundai >> 2009 >> Tucson FWD L4-2.0L >> Repair and Diagnosis >> Heating and Air Conditioning >> Control Assembly >> Testing and Inspection >> Component Tests and General Diagnostics >> Heater & A/C Control Unit(Full Automatic) >> Temp Check
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Temp Check





Temp Check




In adjusting temp switch from 32°C to 17°C, 0V is outputted from FATC connector A22 terminal, 12V is supplied for A9 terminal and temp motor works in direction of COOL. In adjusting temp switch from 17°C to 32°C, 0V is outputted from FATC connector A9 terminal, 12V is supplied for A22 terminal and temp motor works in direction of WARM. When temp actuator has to move to a certain location for its automatic control, temp feedback signal terminal moves equally in temp actuator and informs controller of location of temp actuator through FATC connector B10 terminal. Comparing original value with inputted value, it works until they are same. If 4.9V and more is inputted in B10 terminal, it is regarded as disconnection. If 0.1V and less is inputted in B10 terminal, it is regarded as short-circuit. In the case of disconnection or short-circuit as a result of self-diagnostic, substitute control is carried out as follows.
- If setup temperature is 17°C to 24.5°C, set to MACOOL.
- If setup temperature is 25°C to 32.0°C, set to MAWARM.
Error Diagnostics




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