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Repair Procedures: Self-Diagnosis

WARNING: This page is about a different car, the 2017 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Self-Diagnosis process.
    Fig 1: Self-Diagnosis Process Chart
    G12336096Courtesy of KIA MOTORS AMERICA, INC.
    NOTE:
    • When operating the Self-Diagnostics, the below fault (Self-Diagnostics Code) will blink at 0.5 seconds interval on the temperature display settings (driver's side only) and the remaining symbols are OFF.
  2. Fault code display
    1. Continuance operation: DTC code.
      Fig 2: Fault Code Display Timing Pattern (Continuance Operation; DTC Code)
      G12336097Courtesy of KIA MOTORS AMERICA, INC.
    2. Continuance operation: DTC code.
      Fig 3: Fault Code Display Timing Pattern (Continuance Operation; DTC Code)
      G12336098Courtesy of KIA MOTORS AMERICA, INC.
    3. STEP operation.
      1. Same with continuance operation for normal or one fault code
      2. DTC code.
      Fig 4: Fault Code Display Timing Pattern (DTC Code)
      G12336099Courtesy of KIA MOTORS AMERICA, INC.
  3. If fault codes are displayed during the check, inspect malfunction causes by referring to fault codes.
    Display Fail Description
    0 Normal
    11 In-car sensor open
    12 In-car sensor short
    13 Ambient sensor open
    14 Ambient sensor short
    17 Evaporator sensor open
    18 Evaporator sensor short
    19 Temp door potentiometer open/short- Drive
    20 Temp door potentiometer fault- Drive
    21 Mode door potentiometer open/short - Driver
    22 Mode door potentiometer fault - Driver
    23 Auto Defog Sensor Open
    24 Auto Defog Sensor Short
    25 Intake door potentiometer open
    26 Intake door potentiometer short
    32 Temp door potentiometer open/short - Passenger
    33 Temp door potentiometer fault - Passenger
    43 Defog door potentiometer open/short
    44 Defog door potentiometer fault
    45 APT CAN signal fault
    48 Vehicle speed CAN signal fault
    49 Engine coolant temp CAN signal fault
    50 Cluster Ionizer Fault
    51 Duct sensor vent open - Drive
    52 Duct sensor vent shot - Drive
    53 Duct sensor floor open - Drive
    54 Duct sensor floor shot - Drive
    55 Mode door potentiometer open/short- Passenger
    56 Mode door potentiometer fault- Passenger
    60 COMP CAN signal fault
    61 COMP operation state ERROR received
    62 Low_Voltage
    63 High_Voltage
    64 Cold protection
    65 Overheat protection
    67 Overcurrent protection
    68 Abnormal current sensor
    69 Restart failure
    70 Overload
    71 A/C operating permission is not received
    72 A/C allowable power is not received
    73 A/C allowable power is the inoperative range of E-COMP
    74 APT high pressure
    75 APT low pressure
    76 Ordering A/C operation to stop (from EMS)
    77 Airbag Deployment (Ordering E-COMP operation to stop)
    78 Compressor Interlock Circuit OPEN
    85 Blower Motor fault
  4. Fail safe
    NO Item Fault Fail-Safe
    1 In-car sensor Open or Short Control with the value of 25°C (77.0°F)
    2 Ambient sensor Open or Short Control with the value of 20°C (67°F)
    3 Evaporator sensor Open or Short Control with the value of -2°C (28.4°F)
    4 Temperature control actuator Open or Short If temperature setting 17°C (62.6°F) - 24.5°C (76.1°F), fix at maximum cooling position.
    If temperature setting 25°C (77°F) - 32°C (89.6°F), fix at maximum heating position.
    5 Mode control actuator Open or Short Fix vent position, while selecting vent mode.
    Fix defrost position, while selecting all except vent mode.
    6 Intake control actuator Open or Short Fix fresh position, while selecting fresh mode.
    Fix recirculation position, while selecting recirculation mode.
    7 Vehicle speed NO reception A/C OFF (Control with the value of 0 km/h)
    8 Engine coolant temperature NO reception Control with the value of 90°C (194°F)
    9 APT NO reception COMP operation stop (RPM=0)
    10 COMP Inverter Inverter WAIT/SLEEP Mode entry COMP operation stop (RPM=0)
    11 A/Con operating permission FFh or NO reception COMP operation stop (RPM=0)
    12 A/C Compressor permission power FFh or NO reception COMP operation stop (RPM=0)
    13 CF_Hcu_PTOperMod FFh or NO reception EV Mode substitute control
    14 Defogging door potentiometer Open or Short In the VENT, Bi-Level mode, DEF Door Potentiometer is fixed in CLOSE position.
    In the mode other VENT, Bi-Level mode, DEF Door Potentiometer is fixed in OPEN position.
    15 Passenger mode door potentiometer Open or Short In the VENT mode, PS Mode Door Potentiometer is fixed in VENT position.
    In the mode other than VENT, PS Mode Door Potentiometer is fixed in DEF position.
    16 Duct sensor_Vent [LH] Open or Short In case of the Duct sensor failure, replace the Duct sensor with Temp Door mapping.
    17 Duct sensor_Floor [LH] Open or Short In case of the Duct sensor failure, replace the Duct sensor with Temp Door mapping.
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