Hyundai Genesis (DH): Controller / Heater & A/C Control Unit Repair procedures

Hyundai Genesis (DH) 2013-2016 Service Manual / Heating, Ventilation and Air Conditioning / Controller / Heater & A/C Control Unit Repair procedures

Self Diagnosis
1.
Self-diagnosis process

2.
How to read self-diagnostic code
After the display panel blinks three times every 0.5 second, the corresponding fault code blinks on the setup temperature display panel every 0.5 second and will show two figures. Codes are displayed in numerical format
Fault code
Fault Code
Control Unit
Fail Description
0
Normal
11
In-car temperature sensor open
12
In-car temperature sensor short 
13
Ambient temperature sensor open 
14
Ambient temperature sensor short 
17
Evaporator temperature sensor open 
18
Evaporator temperature sensor short 
19
Temp door potentiometer open/short (Driver's side)
20
Temperature door potentiometer motor (Driver's side)
21
Mode door potentiometer open/short (Driver's side)
22
Mode door potentiometer motor
23
Auto defogging sensor open
24
Auto defogging sensor short
25
Intake door potentiometer open/short
26
Intake door potentiometer motor
27
AQS sensor open
28
AQS sensor short
31
AQS sensor fault
32
Temperature door potentiometer open/short (Passenger's side)
33
Temperature door potentiometer motor (Passenger's side)
34
Console temperature door potentiometer open/short
35
Console temperature door potentiometer motor
36
Console temperature door A potentiometer open/short
37
Console temperature door A potentiometor motor
38
Console duct actuator open/short
39
Console duct actuator motor
43
Auto defogging potentiometer open/short
44
Auto defogging potentiometer motor
45
APT (A/C Pressure Transducer) CAN signal fault
47
RPM CAN signal fault
48
Vehicle speed CAN signal fault
49
Engine coolant temperature CAN signal fault
50
Cluster ionizer fault
51
Rear in-car temperature sensor open
52
Rear in-car temperature sensor short
53
Console duct sensor open
54
Console duct sensor short
55
Cool & Warm box - Thermistor fault
56
Cool & Warm box - Peltier fault
57
Cool & Warm box - Fan pressure fault
58
Cool & Warm box - Fan locking
59
Cool & Warm box - Fan fault

3.
Fault code display
(1)
Continuance operation : None or one DTC code.

(2)
Continuance operation : Two or more DTC code.

(3)
STEP operation
A.
None or one fault code is deemed as continuance operation.
B.
Two or more DTC code.

4.
If fault codes are displayed while checking, inspect for malfunction causes by referring to the fault code table.
5.
Fail Safe
No.
Sensor and Signal
Fail Safe Function
1
In-car sensor
25

    Component Connector Pin Function Pin No.Connector A functionPin No.Connector B function1Taillight (ILL+)1Ground2Sensor REF(+5v)2Diagnosis ionizer3Driver's mode control actuator (Vent)3Clean signal4Driver's mode control actuator (Defrost)4-5Driver's mode control actuator feedback5Passenger's seat belt indicator6Driver's temperature control actuator (Cooling)6Rear seat belt indicator (Left)7Driver's temperature control actuator (Heating)7Rear seat belt indicator (Center)8Driver's temperature control actuator feedback8Rear seat belt indicator (Right)9Defrost actuator (Open)9Humidity sensor10Defrost actuator (Closed)10CO2 Sensor signal11Defrost actuator feedback 11- 12Intake actuator (FRE)12Evaporator sensors(+)13Intake actuator(REF)13Rear defogging sensor14Intake actuator feedback14Heat15-15Idle Stop&Go-DC16-16Battery17-17Sensor ground18-18Console mode actuator (Rear seat vent)19K-LINE19Console mode actuator (Rear seat floor)20Leo stat (ILL-)20Console mode actuator feedback21Ignition 221Console temperature actuator (Cooling)22Mode actuator (Vent)22Console temperature actuator (Heating)23Mode actuator (Defrost)23Console temperature actuator feedback24Mode actuator feedback 24Console On/Off actuator (Off)25Driver's temperature actuator (Cooling)25Console On/Off actuator (On)26Driver's temperature actuator (Heating)26Console On/Off actuator feedback27Temperature actuator feedback 27Console temperature switch actuator 28P-CAN(HIGH)28Console On/Off actuator (On)29P-CAN(LOW)29PAB ON Sine30DETENT OUT30PAB OFF Sine31-31PAB lgnition32PTC Signal ON32 lgnition 133PTC Relay 2??34PTC Relay 3??35ECV +??36ECV- (Ground)??37Blower motor (+)??38FET (Gate)??39FET (Drain feedback)??40Ground??

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