HVAC DTCS
HVAC DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| B1200 | Communication bus line error |
| B1202 | Climate control unit internal error |
| B1205 | Climate control unit lost communication with gauge control module (VSP/NE message) |
| B1206 | Climate control unit lost communication with gauge control module (ECT message) |
| B1207 | Climate control unit lost communication with gauge control module (ILLUMI message) |
| B1208 | Climate control unit lost communication with keyless access control unit (FOB ID message) |
| B1225 | An open in the in-car temperature sensor circuit |
| B1226 | A short in the in-car temperature sensor circuit |
| B1227 | An open in the outside air temperature sensor circuit |
| B1228 | A short in the outside air temperature sensor circuit |
| B1229 | An open in the sunlight sensor circuit |
| B1230 | A short in the sunlight sensor circuit |
| B1231 | An open in the evaporator temperature sensor circuit |
| B1232 | A short in the evaporator temperature sensor circuit |
| B1235 | A problem in the driver's air mix control linkage, door, or motor |
| B1238 | A problem in the passenger's air mix control linkage, door, or motor |
| B1240 | A problem in the mode control linkage, doors, or motor |
| B1241 | A problem in the blower motor circuit |
| B2975 | An open in the driver's vent air temperature sensor circuit |
| B2976 | A short in the driver's vent air temperature sensor circuit |
| B2977 | An open in the passenger's vent air temperature sensor circuit |
| B2978 | A short in the passenger's vent air temperature sensor circuit |
| B2979 | An open in the A/C pressure sensor circuit |
| B2980 | A short in the A/C pressure sensor circuit |
| B2981 | Climate control unit lost communication with navigation unit |
| B2982 | Climate control unit lost communication with each control motor |
| B2983 | A problem in the recirculation control linkage, door, or motor |
| B2984 | A problem in the driver's cool vent control linkage, door, or motor |
| B2985 | A problem in the passenger's cool vent control linkage, door, or motor |
| B2987 | A problem in the rear vent control linkage, door, or motor |
| B2991 | Climate control unit lost communication with audio unit |