HVAC DTCS: 1998
C230, C280 & C43 - CLIMATE CONTROL DIAGNOSTIC TROUBLE CODE LIST
| DTC | System Affected |
|---|---|
| B1026 | Diagnostic Signal Output Check diagnostic signal wiring. See WIRING DIAGRAMS |
| B1226 | In-Vehicle Temperature Sensor |
| B1227 | Outside Temperature Sensor See DTC B1422 information |
| B1228 | Heater Core Temperature Sensor |
| B1230 | Evaporator Temperature Sensor |
| B1231 | Coolant Temperature Sensor See DTC B1422 information |
| B1232 | Refrigerant Pressure Sensor |
| B1233 | Refrigerant Temperature Sensor |
| B1241 | Refrigerant Fill See DTC B1232 and B1233 information |
| B1416 | Coolant Circulation Pump |
| B1417 | Left Duovalve Valve |
| B1418 | Right Duovalve Valve |
| B1419 | Electromagnetic Clutch |
| B1420 | Idle Speed Increase Testing information not available |
| B1421 | Pulse Module |
| B1422 | Connection To Instrument Cluster |
| B1451 | Diverter Flap |
| B1452 | Blend Air Flap |
| B1453 | Fresh/Recirculated Air Flap (Long Stroke) |
| B1454 | Fresh/Recirculated Air Flap (Short Stroke) |
| B1455 | Defroster Outlet Flap (Long Stroke) |
| B1456 | Defroster Outlet Flap (Short Stroke) |
| B1457 | Footwell Flap (Long Stroke) |
| B1458 | Footwell Flap (Short Stroke) |
| B1459 | Instrument Cluster/Compressor Emergency Off |
| B1462 | Wide Open Throttle (WOT) Signal (Diesel Engines) Testing information not available |