DTC Troubleshooting Index
Checking the DTCs by HDS
TROUBLESHOOTING CHART
| DTC | Detection Item or Symptom | ECU | DTC type | See |
|---|---|---|---|---|
| B1200 | Communication bus line error | Climate control unit | Loss of communication | (see DTC B1050: COMMUNICATION BUS LINE ERROR; DTC B1100: COMMUNICATION BUS LINE ERROR; DTC B1150: COMMUNICATION BUS LINE ERROR; DTC B1200: COMMUNICATION BUS LINE ERROR; DTC B1250: COMMUNICATION BUS LINE ERROR; DTC B1750: COMMUNICATION BUS LINE ERROR ) |
| B1202 | Climate control unit internal error | Climate control unit | Internal error | (see DTC TROUBLESHOOTING ) |
| B1205 | Climate control unit lost communication with gauge control module (VSP/NE message) | Climate control unit | Loss of communication | (see DTC TROUBLESHOOTING ) |
| B1206 | Climate control unit lost communication with gauge control module (ECT message) | Climate control unit | Loss of communication | (see DTC TROUBLESHOOTING ) |
| B1207 | Climate control unit lost communication with gauge control module (ILLUMI message) | Climate control unit | Loss of communication | (see DTC TROUBLESHOOTING ) |
| B1225 | An open in the in-car temperature sensor circuit | Climate control unit | Signal error | (see DTC B1225 OR DTC INDICATOR A: AN OPEN IN THE IN-CAR TEMPERATURE SENSOR CIRCUIT ) |
| B1226 | A short in the in-car temperature sensor circuit | Climate control unit | Signal error | (see DTC B1226 OR DTC INDICATOR B: A SHORT IN THE IN-CAR TEMPERATURE SENSOR CIRCUIT ) |
| B1227 | An open in the outside air temperature sensor circuit | Climate control unit | Signal error | (see DTC B1227 OR DTC INDICATOR C: AN OPEN IN THE OUTSIDE AIR TEMPERATURE SENSOR CIRCUIT ) |
| B1228 | A short in the outside air temperature sensor circuit | Climate control unit | Signal error | (see DTC B1228 OR DTC INDICATOR D: A SHORT IN THE OUTSIDE AIR TEMPERATURE SENSOR CIRCUIT ) |
| B1229 | An open in the sunlight sensor circuit | Climate control unit | Signal error | (see DTC B1229 OR DTC INDICATOR E: AN OPEN IN THE SUNLIGHT SENSOR CIRCUIT ) |
| B1230 | A short in the sunlight sensor circuit | Climate control unit | Signal error | (see DTC B1230 OR DTC INDICATOR F: A SHORT IN THE SUNLIGHT SENSOR CIRCUIT ) |
| B1231 | An open in the evaporator temperature sensor circuit | Climate control unit | Signal error | (see DTC B1231 OR DTC INDICATOR G: AN OPEN IN THE EVAPORATOR TEMPERATURE SENSOR CIRCUIT ) |
| B1232 | A short in the evaporator temperature sensor circuit | Climate control unit | Signal error | (see DTC B1232 OR DTC INDICATOR H: A SHORT IN THE EVAPORATOR TEMPERATURE SENSOR CIRCUIT ) |
| B1233 | An open in the driver's air mix control motor circuit | Climate control unit | Signal error | (see DTC B1233 OR DTC INDICATOR J: AN OPEN IN THE DRIVER'S AIR MIX CONTROL MOTOR CIRCUIT ) |
| B1234 | A short in the driver's air mix control motor circuit | Climate control unit | Signal error | (see DTC B1234 OR DTC INDICATOR K: A SHORT IN THE DRIVER'S AIR MIX CONTROL MOTOR CIRCUIT ) |
| B1235 | A problem in the driver's air mix control linkage, door, or motor | Climate control unit | Signal error | (see DTC B1235 OR DTC INDICATOR L: A PROBLEM IN THE DRIVER'S AIR MIX CONTROL LINKAGE, DOOR, OR MOTOR ) |
| B1236 | An open in the passenger's air mix control motor circuit | Climate control unit | Signal error | (see DTC B1236 OR DTC INDICATOR M: AN OPEN IN THE PASSENGER'S AIR MIX CONTROL MOTOR CIRCUIT ) |
| B1237 | A short in the passenger's air mix control motor circuit | Climate control unit | Signal error | (see DTC B1237 OR DTC INDICATOR N: A SHORT IN THE PASSENGER'S AIR MIX CONTROL MOTOR CIRCUIT ) |
| B1238 | A problem in the passenger's air mix control linkage, door, or motor | Climate control unit | Signal error | (see DTC B1238 OR DTC INDICATOR P: A PROBLEM IN THE PASSENGER'S AIR MIX CONTROL LINKAGE, DOOR, OR MOTOR ) |
| B1239 | An open or short in the mode control motor circuit | Climate control unit | Signal error | (see DTC B1239 OR DTC INDICATOR Q: AN OPEN OR SHORT IN THE MODE CONTROL MOTOR CIRCUIT ) |
| B1240 | A problem in the mode control linkage, doors, or motor | Climate control unit | Signal error | (see DTC B1240 OR DTC INDICATOR R: A PROBLEM IN THE MODE CONTROL LINKAGE, DOORS, OR MOTOR ) |
| B1241 | A problem in the blower motor circuit | Climate control unit | Signal error | (see DTC B1241 OR DTC INDICATOR S: A PROBLEM IN THE BLOWER MOTOR CIRCUIT ) |