Manual Controller: Troubleshooting: SELFDIAGNOSIS

Self-diagnosis process

Fig 1: Self-Diagnosis Process Flow Chart
Courtesy of KIA MOTORS AMERICA, INC.

How to read self-diagnostic code

After the display panel flickers three times every 0.5 second, the corresponding fault code flickers on the setup temperature display panel every 0.5 second and will show two figures. Codes are displayed in numerical format

Fault code

DTC

NO.	DTC	Fail description
1	B1200	Humidity sensor open (High)
2	B1201	Humidity sensor short (Low)
3	B1202	Water temperature sensor open (High)
4	B1203	Water temperature sensor short (Low)
5	B1208	Intake potentiometer open (High)
6	B1209	Intake potentiometer short (Low)
7	B1233	In-car sensor short (Low)
8	B1234	In-car sensor open (High)
9	B1237	Ambient temperature sensor short (Low)
10	B1238	Ambient temperature sensor open (High)
11	B1241	Evaporator sensor short (Low)
12	B1242	Evaporator sensor open (High)
13	B1204	Temp control acuator feed back open (Passenger's)
14	B1205	Temp control acuator feed back short (Passenger's)
15	B1245	Temp control acuator feed back open (Drive's)
16	B1246	Temp control acuator feed back short (Drive's)
17	B1260	Temp control acuator feed back open (Rear)
18	B1261	Temp control acuator feed back short (Rear)
19	B1249	Mode control actuator open (Drive's)
20	B1250	Mode control actuator short (Drive's)
21	B1206	Mode control actuator open (Passenger's)
22	B1207	Mode control actuator short (Passenger's)
23	B1262	Mode control actuator open (Rear)
24	B1263	Mode control actuator short (Rear)
25	B2409	Intake potentiometor short
26	B2416	Direction control motor (Passenger's)
27	B2411	Direction control motor (Rear)
28	B2408	Intake potentionmtor failure
29	B2405	Air mix motor (Rear)
30	B2406	Air mix motor (Drive's)
31	B2415	Air mix motor (Passenger's)

Fault code display
1. Continuance operation : DTC code is one.
  
  Fig 2: DTC Timing Chart
  Courtesy of KIA MOTORS AMERICA, INC.
2. Continuance operation : DTC code is more two.
  
  Fig 3: DTC Timing Chart
  Courtesy of KIA MOTORS AMERICA, INC.
3. STEP operation
  1. Normal or one fault code is same as a continuance operation.
  2. DTC code is more two.
  Fig 4: DTC Timing Chart
  Courtesy of KIA MOTORS AMERICA, INC.
Diagnostic procedure refer to DTC .
Fail safe
1. In-car temperature sensor: Control with the value of 25°C(77°F)
2. Ambient temperature sensor: Control with the value of 20°C(67°F)
3. Evaporator temperature sensor: Control with the value of -2°C(28.4°F)
4. Humidity sensor: Control with the value of 10%
5. Temperature sensor : Control with the value of -2°C (28.4°F)
6. Temperature control actuator (Air mix potentiometer):
  If temperature setting 17°C-24.5°C, fix at maximum cooling position.
  
  If temperature setting 25°C-32°C, fix at maximum heating position.
7. Mode control actuator (Direction potentiometer):
  Fix vent position, while selecting vent mode.
  
  Fix defrost position, while selecting all except vent mode.
8. Intake control actuator:
  Fix fresh position, while selecting fresh mode.
  
  Fix recirculation position, while selecting recirculation mode.