Air Conditioning System DTCS
AIR CONDITIONING SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| B1204-13 | Air Mix Potentiometer Open (Low)-Passenger |
| B1205-11 | Air Mix Potentiometer Short (High)-Passenger |
| B1206-13 | Direction Potentiometer Open (Low)-Passenger |
| B1207-11 | Direction Potentiometer Short (High)-Passenger |
| B1208-13 | Intake Potentiometer Open (Low) |
| B1209-11 | Intake Potentiometer Short (High) |
| B1233-11 | Incar Temp Sensor Short(Low) - Front |
| B1234-13 | Incar Temp Sensor Open(High) - Front |
| B1237-11 | Ambient Temperature Sensor Short (Low) |
| B1238-13 | Ambient Temperature Sensor Open (High) |
| B1241-11 | Evaporator Sensor Short (Low) |
| B1242-13 | Evaporator Sensor Open (High) |
| B1245-13 | Air Mix Potentiometer Open (Low)-Driver |
| B1246-11 | Air Mix Potentiometer Short (High)-Driver |
| B1249-13 | Direction Potentiometer Open (Low)-Driver |
| B1250-11 | Direction Potentiometer Short (High)-Driver |
| B1281-11 | Humidity Sensor Short (Low) - AUTO Defog |
| B1283-13 | Direction Potentiometer Open (Low) - AUTO Defog |
| B1284-11 | Direction Potentiometer Short (High) - Auto Defog |
| B1285-77 | Direction Control Motor -AUTO Defog |
| B1286-11 | Duct Sensor Short (Low) - Driver Vent |
| B1287-13 | Duct Sensor Open (High) - Driver Vent |
| B1288-11 | Duct Sensor Short (Low) - Driver Floor |
| B1289-13 | Duct Sensor Open (High) - Driver Floor |
| B128C-13 | Rear Temp Cool Potentionmeter - Open (Low) |
| B128D-11 | Rear Temp Cool Potentionmeter - Open (High) |
| B128E-13 | Rear Temp Warm Potentionmeter - Open (Low) |
| B128F-11 | Rear Temp Warm Potentionmeter - Open (High) |
| B12A8-11 | Duct Sensor Short (Low) - Passenger Vent |
| B12A9-13 | Duct Sensor Open (High) - Passenger Vent |
| B12AA-11 | Duct Sensor Short (Low) - Passenger Floor |
| B12AB-13 | Duct Sensor Open (High) - Passenger Floor |
| B12B0-13 | Rear Driver B-PILLAR Potentiometer Open (Low) |
| B12B1-11 | Rear Driver B-PILLAR Potentiometer Short (High) |
| B12B2-13 | Rear Passenger B-PILLAR Potentiometer Open (Low) |
| B12B3-11 | Rear Passenger B-PILLAR Potentiometer Short (High) |
| B12B4-11 | Duct sensor short (Low) - Def |
| B12B5-13 | Duct sensor open (High) - Def |
| B1603-88 | CAN BUS OFF |
| B160C-88 | Lost Communication with PTC |
| B1686-88 | Vehicle Speed Sensor Fault - CAN Signal |
| B1695-88 | CAN Time-Out Comp |
| B1696-88 | COMP Oper. State Error |
| B1777-88 | PTC HTR IGBT Fault |
| B1804-31 | HVAC Blower Motor |
| B1804-49 | HVAC Blower Motor |
| B1807-88 | E-Comp Fault (Abnormal -not receiving) |
| B1815-88 | PTC Heater - CAN Signal Fault(Time Out) |
| B1818-13 | PTC Heater Interlock Fault |
| B1821-88 | Ecomp Wait Low Voltage |
| B1822-88 | Ecomp Wait High Voltage |
| B1823-88 | Ecomp Wait Over Heat Protection |
| B1824-88 | Ecomp Wait Over Current Protection |
| B1826-88 | Ecomp Sleep Missed Restart |
| B1827-88 | Ecomp Sleep Current Sensor Error |
| B182B-88 | Ecomp Fault Short Circuit |
| B182E-88 | PTC HTR LV Low Fault |
| B182F-88 | PTC HTR LV High Fault |
| B1830-88 | PTC HTR HV Low Fault |
| B1831-88 | PTC HTR HV High Fault |
| B1832-88 | PTC HTR Over Current Fault |
| B1833-88 | PTC HTR Thermal Shutdown Fault |
| B1834-88 | PTC HTR PCB Thermal Shutdown Fault |
| B1835-88 | PTC HTR Failure of High Voltage Sensor |
| B1836-88 | PTC HTR Failure of Low Voltage Sensor |
| B1837-88 | PTC HTR Failure of Current Sensor |
| B1838-88 | PTC HTR Open/Short of PCB Temperature Sensor |
| B1839-88 | PTC HTR Open/Short of Core Temperature Sensor |
| B184A-13 | Refrigerant Temp Sensor #1 Open |
| B184B-11 | Refrigerant Temp Sensor #1 Short |
| B184C-13 | Refrigerant Temp sensor #2 Open |
| B184D-11 | Refrigerant Temp sensor #2 Short |
| B185C-13 | BATT_COOL VALVE(EVAP) - open |
| B185D-11 | BATT_COOL VALVE(EVAP) - short |
| B1869-11 | PT Sensor - High Pressure Sensor |
| B1869-13 | PT Sensor - High Pressure Sensor |
| B186A-11 | PT Sensor - Low Pressure Sensor |
| B186A-13 | PT Sensor - Low Pressure Sensor |
| B186C-19 | HVAC BLDC MOTOR - Over Current |
| B186D-16 | HVAC BLDC MOTOR - Under Voltage |
| B186E-17 | HVAC BLDC MOTOR - Over Voltage |
| B186F-77 | HVAC BLDC MOTOR - Motor Stuck |
| B1871-17 | ref valve fault - EXV (H/P) - Low Voltage |
| B1872-4B | ref valve fault - EXV (H/P) - Over Temp |
| B1873-4B | ref valve fault - EXV (H/P) - Under Temp |
| B1874-01 | ref valve fault - EXV (H/P) - Eletrical Fault |
| B1875-07 | ref valve fault - EXV (H/P) - Valve Fault |
| B1876-88 | ref valve fault - EXV (H/P) - LIN Fail |
| B1877-16 | ref valve fault - EXV (H/P) - High Voltage |
| B1878-4B | HVAC BLDC MOTOR - Over Temperature |
| B187A-88 | HVAC BLDC MOTOR - Controller Shutdown |
| B187B-19 | HVAC BLDC MOTOR - above Software Current Limit |
| B187C-88 | HVAC BLDC MOTOR - LIN Fail |
| B1880-16 | ref valve fault - BSA chiller #1 - High Voltage |
| B1881-17 | ref valve fault - BSA chiller #1 - Low Voltage |
| B1882-4B | ref valve fault - BSA chiller #1 - Over Temp |
| B1883-4B | ref valve fault - BSA chiller #1 - Under Temp |
| B1884-01 | ref valve fault - BSA chiller #1 - Electrical Fault |
| B1885-07 | ref valve fault - BSA chiller #1 - Valve Fault |
| B1886-88 | ref valve fault - BSA chiller #1 - LIN Fail |
| B1890-16 | ref valve fault - 3way (R/D) - High Voltage |
| B1891-17 | ref valve fault - 3way (R/D) - Low Voltage |
| B1892-4B | ref valve fault - 3way (R/D) - Over Temp |
| B1893-4B | ref valve fault - 3way (R/D) - Under Temp |
| B1894-01 | ref valve fault - 3way (R/D) - Electrical Fault |
| B1895-07 | ref valve fault - 3way (R/D) - Valve Fault |
| B1896-88 | ref valve fault - 3way (R/D) - LIN Fail |
| B1897-16 | Valve Fault - EXV (DEHUM) - High Voltage |
| B1898-17 | Valve Fault - EXV (DEHUM) - Low Voltage |
| B1899-4B | Valve Fault - EXV (DEHUM) - Over Temp |
| B189A-01 | Valve Fault - EXV (DEHUM) - Under Temp |
| B189B-07 | Valve Fault - EXV (DEHUM) - Electrical Fault |
| B189C-88 | Valve Fault - EXV (DEHUM) - Valve Fault |
| B189D-88 | Valve Fault - EXV (DEHUM) - LIN Fail |
| B18A7-16 | Cool Valve Fault - 3way - High Voltage |
| B18A8-17 | Cool Valve Fault - 3way - Low Voltage |
| B18A9-4B | Cool Valve Fault - 3way - Over Temp |
| B18AA-4B | Cool Valve Fault - 3way - Under Temp |
| B18AB-01 | Cool Valve Fault - 3way - Electrical Fault |
| B18AC-07 | Cool Valve Fault - 3way - Valve Fault |
| B18AD-88 | Cool Valve Fault - 3way - LIN Fail |
| B2209-87 | CAN Time-out VCU |
| B2210-87 | CAN Time-out MCU |
| B2211-87 | CAN Time-out BMS |
| B2406-77 | Air Mix Motor-Driver |
| B2408-77 | Intake Motor |
| B2409-77 | Direction Control Motor-Driver |
| B2415-77 | Air Mix Motor-Passenger |
| B2416-77 | Direction Control Motor-Passenger |
| B241A-77 | Rear Temp Cool Motor |
| B241B-77 | Rear Temp Warm Motor |
| B244C-77 | Rear Driver B-PILLAR Control Motor |
| B244D-77 | Rear Passenger B-PILLAR Control Motor |
| B2470-13 | E-comp Interlock Fault |
| B2478-88 | ECOMP MOTOR LINE OPEN Error |
| B2479-01 | ECOMP Internal Error |