HVAC DTCS
HVAC DIAGNOSTIC TROUBLE CODES (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC U128D | Lost Communication with Gauge Control Module (HVAC Control Unit) |
| DTC B1215 | An Open or Short in the Recirculation Control Motor Circuit |
| DTC B1223 | A Problem in the Rear Blower Motor Circuit |
| DTC B1227 | An Open in the Outside Air Temperature Sensor Circuit |
| DTC B1228 | A Short in the Outside Air Temperature Sensor Circuit |
| DTC B1231 | An Open in the Evaporator Temperature Sensor Circuit |
| DTC B1232 | A Short in the Evaporator Temperature Sensor Circuit |
| DTC B1233 | An Open in the Air Mix Control Motor Circuit (Front) |
| DTC B1234 | A Short in the Air Mix Control Motor Circuit (Front) |
| DTC B1235 | A Problem in the Air Mix Control Motor Circuit, Linkage, Door, or Motor (Front) |
| DTC B1239 | An Open or Short in the Mode Control Motor Circuit (Front) |
| DTC B1240 | A Problem in the Mode Control Motor Circuit, Linkage, Doors, or Motor (Front) |
| DTC B1241 | A Problem in the Blower Motor Circuit (Front) |
| DTC B1244 | An Open in the Rear Air Mix Control Motor Circuit |
| DTC B1245 | A Short in the Rear Air Mix Control Motor Circuit |
| DTC B1246 | A Problem in the Rear Air Mix Control Motor Circuit, Linkage, Door, or Motor |
| DTC B2965 | Rear Communication Failure |
| DTC B2979 | An Open in the A/C Pressure Sensor Circuit |
| DTC B2980 | A short in the A/C Pressure Sensor Circuit |
| DTC B2983 | A problem in the Recirculation Control Linkage, Door, or Motor Circuit |