Symptom
Check item
Reference
A/C system does not activate.
Power supply and ground circuit
Diagnosis Procedure
A/C system cannot be controlled.
A/C auto amp.
Diagnosis Procedure
  • Air outlet does not change.
  • Mode door motor does not operate normally.
Mode door motor
DTC Logic
  • Discharge air temperature of driver side does not change.
  • The air mix door motor of driver side does not operate normally.
Air mix door motor (driver side)
DTC Logic
  • Discharge air temperature of passenger side does not change.
  • The air mix door motor of passenger side does not operate normally.
Air mix door motor (passenger side)
DTC Logic
  • Intake door does not change.
  • Intake door motor does not operate normally.
Intake door motor
DTC Logic
Blower motor operation is malfunctioning.
Blower motor
Diagnosis Procedure
Magnet clutch does not operate.
Magnet clutch
Diagnosis Procedure
  • Insufficient cooling
  • No cool air comes out. (Air flow volume is normal.)
ECV
Diagnosis Procedure
Insufficient cooling
Diagnosis Procedure
  • Insufficient heating
  • No warm air comes out. (Air flow volume is normal.)
Insufficient heating
Diagnosis Procedure
  • Noise
  • Noise is heard when the A/C system operates.
Noise
Diagnosis Procedure
  • Memory function does not operate normally.
  • The setting is not maintained. (It returns to the initial condition)
Memory function
Diagnosis Procedure