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 |
| B1262-13 | Direction Potentiometer Open (Low) - Rear |
| B1263-11 | Direction Potentiometer Short (High) - Rear |
| 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 Potentiometer - Open (Low) |
| B128D-11 | Rear Temp Cool Potentiometer - Open (High) |
| B128E-13 | Rear Temp Warm Potentiometer - Open (Low) |
| B128F-11 | Rear Temp Warm Potentiometer - Open (High) |
| B129A-11 | Duct Sensor Short (Low) - Rear Roof |
| B129A-13 | Duct Sensor Short (Low) - Rear Roof |
| B129B-11 | Duct Sensor Short (Low) - Rear Floor |
| B129B-13 | Duct Sensor Short (Low) - Rear Floor |
| 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 |
| B12B4-11 | Duct sensor short (Low) - Def |
| B12B5-13 | Duct sensor open (High) - Def |
| 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 |
| B1773-88 | Climate CAN Communication Fail (Rear) |
| B1777-88 | PTC HTR IGBT Fault |
| 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 |
| B1825-88 | Ecomp Wait Low Temp 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 |
| B185C-13 | SOL TXV Open - EVAP |
| B185D-11 | SOL TXV Short - EVAP |
| B1860-13 | Refrigerant Temp sensor - EXV Open |
| B1861-11 | Refrigerant Temp sensor - EXV Short |
| B1869-11 | PT Sensor - High Pressure Sensor |
| B1869-13 | PT Sensor - High 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 |
| B187C-88 | HVAC BLDC MOTOR - LIN Fail |
| B1880-16 | Ref Valve Fault - EXV (B/Chiller) - High Voltage |
| B1881-17 | Ref Valve Fault - EXV (B/Chiller) - Low Voltage |
| B1882-4B | Ref Valve Fault - EXV (B/Chiller) - Over Temp |
| B1883-4B | Ref Valve Fault - EXV (B/Chiller) - Under Temp |
| B1884-01 | Ref Valve Fault - EXV (B/Chiller) - Electrical Fault |
| B1885-07 | Ref Valve Fault - EXV (B/Chiller) - Valve Fault |
| B1886-88 | Ref Valve Fault - EXV (B/Chiller) - 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 |
| B18A0-16 | Ref Valve Fault - 2WAY (DeHUMI) - High Voltage |
| B18A1-17 | Ref Valve Fault - 2WAY (DeHUMI) - Low Voltage |
| B18A2-4B | Ref Valve Fault - 2WAY (DeHUMI) - Over Temp |
| B18A3-4B | Ref Valve Fault - 2WAY (DeHUMI) - Under Temp |
| B18A4-01 | Ref Valve Fault - 2WAY (DeHUMI) - Electrical Fault |
| B18A5-07 | Ref Valve Fault - 2WAY (DeHUMI) - Valve Fault |
| B18A6-88 | Ref Valve Fault - 2WAY (DeHUMI) - 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 |
| B18BC-92 | Insufficient Refrigerant |
| B18F8-16 | Ref. Valve Fault - 2WAY (REAR) - High Voltage |
| B18F9-17 | Ref. Valve Fault - 2WAY (REAR) - Low Voltage |
| B18FA-4B | Ref. Valve Fault - 2WAY (REAR) - Over Temp |
| B18FB-4B | Ref. Valve Fault - 2WAY (REAR) - Under Temp |
| B18FC-01 | Ref. Valve Fault - 2WAY (REAR) - Electrical Fault |
| B18FD-07 | Ref. Valve Fault - 2WAY (REAR) - Valve Fault |
| B191A-88 | REAR PTC Heater - CAN Signal Fault (Time Out) |
| B2209-87 | CAN Time-Out VCU |
| B238D-88 | REAR PTC HTR LV Low Fault |
| B238E-88 | REAR PTC HTR LV High Fault |
| B238F-88 | REAR PTC HTR HV Low Fault |
| B2390-88 | REAR PTC HTR HV High Fault |
| B2391-88 | REAR PTC HTR Over Current Fault |
| B2392-88 | REAR PTC HTR Thermal Shutdown Fault |
| B2393-88 | REAR PTC HTR PCB Thermal Shutdown Fault |
| B2394-88 | REAR PTC HTR Failure of High Voltage Sensor |
| B2395-88 | REAR PTC HTR Failure of Low Voltage Sensor |
| B2396-88 | REAR PTC HTR Failure of Current Sensor |
| B2397-88 | REAR PTC HTR Open/Short of PCB Temperature Sensor |
| B2398-88 | REAR PTC HTR Open/Short of Core Temperature Sensor |
| B2399-19 | REAR HVAC BLDC MOTOR - Over Current |
| B239A-16 | REAR HVAC BLDC MOTOR - Under Voltage |
| B239B-17 | REAR HVAC BLDC MOTOR - Over Voltage |
| B239C-77 | REAR HVAC BLDC MOTOR - Motor Stuck |
| B239D-4B | REAR HVAC BLDC MOTOR - Over Temperature |
| B239E-88 | REAR HVAC BLDC MOTOR - Controller Shutdown |
| B239F-13 | REAR PTC HTR Interlock Fault |
| B2406-77 | Air Mix Motor-Driver |
| B2408-77 | Intake Motor |
| B2409-77 | Direction Control Motor-Driver |
| B2411-77 | Direction Control Motor (Rear) |
| B2415-77 | Air Mix Motor-Passenger |
| B2416-77 | Direction Control Motor-Passenger |
| B241A-77 | Rear Temp Cool Motor |
| B241B-77 | Rear Temp Warm Motor |
| B2470-13 | E-comp Interlock Fault |
| U190C-88 | Lost Communication with Rear PTC |
| U190D-88 | REAR HVAC BLDC MOTOR - LIN Fail |
| U190F-88 | Ref. Valve Fault - 2WAY (REAR) - LIN Fail |