Climate Control DTCS
| DTC | Detection Item or Symptom | ECU | DTC Type |
|---|---|---|---|
| B120A | Climate control unit LIN communication bus line error | Climate control unit | Loss of communication |
| B1210 | Climate control unit internal error | Climate control unit | Internal error |
| B121A | An open in the mode control motor circuit | Climate control unit | Signal error |
| B121B | A short in the mode control motor circuit | Climate control unit | Signal error |
| B121D | Humidity/in-car temperature sensor communication error | Climate control unit | Loss of communication |
| B1220 | A Short in the recirculation control motor circuit | Climate control unit | Signal error |
| B1225 | An open in the in-car temperature sensor circuit | Climate control unit | Signal error |
| B1226 | A short in the in-car temperature sensor circuit | Climate control unit | Signal error |
| B1227 | An open in the outside air temperature sensor circuit | Climate control unit | Signal error |
| B1228 | A short in the outside air temperature sensor circuit | Climate control unit | Signal error |
| B122F | An open in the windshield defrost switch circuit | Climate control unit | Signal error |
| B1231 | An open in the evaporator temperature sensor circuit | Climate control unit | Signal error |
| B1232 | A short in the evaporator temperature sensor circuit | Climate control unit | Signal error |
| B1233 | An open in the air mix control motor circuit (driver's) | Climate control unit | Signal error |
| B1234 | A short in the air mix control motor circuit (driver's) | Climate control unit | Signal error |
| B1235 | A problem in the air mix control motor circuit, linkage, door, or motor (driver's) | Climate control unit | Signal error |
| B1236 | An open in the passenger's air mix control motor circuit | Climate control unit | Signal error |
| B1237 | A short in the passenger's air mix control motor circuit | Climate control unit | Signal error |
| B1238 | A problem in the passenger's air mix control motor circuit, linkage, door, or motor | Climate control unit | Signal error |
| B123F - Refer to: DTC Troubleshooting: B123F (17) (Without Automatic Wiper, With Automatic Lighting) or DTC Troubleshooting: B123F (17) (With Automatic Wiper/Without Automatic Lighting) | Automatic lighting control unit/sunlight sensor error | Climate control unit | Signal error |
| B1240 | A problem in the mode control motor circuit, linkage, door, or motor | Climate control unit | Signal error |
| B1241 | A problem in the blower motor circuit | Climate control unit | Signal error |
| B2964 | Climate control unit lost communication with front panel (climate control switch) | Climate control unit | Loss of communication |
| B2983 | A problem in the recirculation control motor circuit, linkage, door, or motor | Climate control unit | Signal error |
| B2986 | An open in the recirculation control motor circuit | Climate control unit | Signal error |
| B2988 | A problem in the A/C compressor variable capacity control solenoid circuit | Climate control unit | Signal error |
| U1280 | Communication bus line error (BUS-OFF) | Climate control unit | Loss of communication |
| U1281 | Climate control unit lost communication with MICU (body control module) | Climate control unit | Loss of communication |
| U128D | Climate control unit lost communication with gauge control module | Climate control unit | Loss of communication |
| U1290 * | Climate control unit lost communication with seat heater control unit | Climate control unit | Loss of communication |
*: With front seat heater