HVAC Control Unit
WARNING: This page is about a different car, the 2011 Honda Pilot, 2010 Honda Pilot, and 2009 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.
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 ) |