HVAC Control Unit
HVAC CONTROL UNIT REFERENCE TABLE
| DTC | Description | DTC Type | Reference |
|---|---|---|---|
| B1215 | An open or short in the recirculation control motor circuit | Signal error | DTC Troubleshooting (see DTC B1215 OR DTC INDICATOR 8: AN OPEN OR SHORT IN THE RECIRCULATION CONTROL MOTOR CIRCUIT ) |
| B1223 | A problem in the rear blower motor circuit | Signal error | DTC Troubleshooting (see DTC B1223 OR DTC INDICATOR 1: A PROBLEM IN THE REAR BLOWER MOTOR CIRCUIT ) |
| B1227 | An open in the outside air temperature sensor circuit | Signal error | DTC Troubleshooting (see DTC B1227 OR DTC INDICATOR 5: AN OPEN IN THE OUTSIDE AIR TEMPERATURE SENSOR CIRCUIT ) |
| B1228 | A short in the outside air temperature sensor circuit | Signal error | DTC Troubleshooting (see DTC B1228 OR DTC INDICATOR 5: A SHORT IN THE OUTSIDE AIR TEMPERATURE SENSOR CIRCUIT ) |
| B1231 | An open in the evaporator temperature sensor circuit | Signal error | DTC Troubleshooting (see DTC B1231 OR DTC INDICATOR 5: AN OPEN IN THE EVAPORATOR TEMPERATURE SENSOR CIRCUIT ) |
| B1232 | A short in the evaporator temperature sensor circuit | Signal error | DTC Troubleshooting (see DTC B1232 OR DTC INDICATOR 4: A SHORT IN THE EVAPORATOR TEMPERATURE SENSOR CIRCUIT ) |
| B1233 | An open in the front air mix control motor circuit | Signal error | DTC Troubleshooting (see DTC B1233 OR DTC INDICATOR 2: AN OPEN IN THE FRONT AIR MIX CONTROL MOTOR CIRCUIT ) |
| B1234 | A short in the front air mix control motor circuit | Signal error | DTC Troubleshooting (see DTC B1234 OR DTC INDICATOR 2: A SHORT IN THE FRONT AIR MIX CONTROL MOTOR CIRCUIT ) |
| B1235 | A problem in the front air mix control linkage, door, or motor | Signal error | DTC Troubleshooting (see DTC B1235 OR DTC INDICATOR 2: A PROBLEM IN THE FRONT AIR MIX CONTROL LINKAGE, DOOR, OR MOTOR CIRCUIT ) |
| B1239 | An open or short in the mode control motor circuit | Signal error | DTC Troubleshooting (see DTC B1239 OR DTC INDICATOR 3: AN OPEN OR SHORT IN THE FRONT MODE CONTROL MOTOR CIRCUIT ) |
| B1240 | A problem in the mode control linkage, doors, or motor | Signal error | DTC Troubleshooting (see DTC B1240 OR DTC INDICATOR 3: A PROBLEM IN THE FRONT MODE CONTROL LINKAGE, DOORS, OR MOTOR CIRCUIT ) |
| B1241 | A problem in the blower motor circuit | Signal error | DTC Troubleshooting (see DTC B1241 OR DTC INDICATOR 1: A PROBLEM IN THE FRONT BLOWER MOTOR CIRCUIT ) |
| B1244 | An open in the rear air mix control motor circuit | Signal error | DTC Troubleshooting (see DTC B1244 OR DTC INDICATOR 7: AN OPEN IN THE REAR AIR MIX CONTROL MOTOR CIRCUIT ) |
| B1245 | A short in the rear air mix control motor circuit | Signal error | DTC Troubleshooting (see DTC B1245 OR DTC INDICATOR 7: A SHORT IN THE REAR AIR MIX CONTROL MOTOR CIRCUIT ) |
| B1246 | A problem in the rear air mix control linkage, door, or motor | Signal error | DTC Troubleshooting (see DTC B1246 OR DTC INDICATOR 7: A PROBLEM IN THE REAR AIR MIX CONTROL LINKAGE, DOOR, OR MOTOR CIRCUIT ) |
| B2965 | HVAC Control unit lost communication with rear HVAC control panel communication failure | Loss of communication | DTC Troubleshooting (see DTC B2965: HVAC CONTROL UNIT LOST COMMUNICATION WITH REAR HVAC CONTROL PANEL ) |
| B2979 | An open in the A/C pressure sensor circuit | Signal error | DTC Troubleshooting (see DTC B2979 OR DTC INDICATOR 6: AN OPEN IN THE A/C PRESSURE SENSOR CIRCUIT ) |
| B2980 | A short in the A/C pressure sensor circuit | Signal error | DTC Troubleshooting (see DTC B2980 OR DTC INDICATOR 6: A SHORT IN THE A/C PRESSURE SENSOR CIRCUIT ) |
| B2983 | A problem in the recirculation control linkage, door, or motor | Signal error | DTC Troubleshooting (see DTC B2983 OR DTC INDICATOR 8: A PROBLEM IN THE RECIRCULATION CONTROL LINKAGE, DOOR, OR MOTOR CIRCUIT ) |
| U0155 | HVAC control unit lost communication with gauge control module | Loss of communication | DTC Troubleshooting (see DTC U0155: HVAC CONTROL UNIT LOST COMMUNICATION WITH GAUGE CONTROL MODULE ) |