Diagnostic Trouble Code List
WARNING: This page is about a different car, the 1997 Mercedes-Benz C280 and 1997 Mercedes-Benz C230. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
To retrieve DTCs, see RETRIEVING DIAGNOSTIC TROUBLE CODES (DTCs) .
CLIMATE CONTROL DIAGNOSTIC TROUBLE CODES (DTC)
| DTC | Diagnostic | ||||
|---|---|---|---|---|---|
| 026 | (1) Diagnostic Signal Output | ||||
| 226 | In-Vehicle Temperature Sensor | ||||
| 227 (2) | Outside Temperature Sensor | ||||
| 228 | Heater Core Temperature Sensor | ||||
| 230 | Evaporator Temperature Sensor | ||||
| 231 (2) | Coolant Temperature Sensor | ||||
| 232 | Refrigerant Pressure Sensor | ||||
| 233 | Refrigerant Temperature Sensor | ||||
| 241 (2) | Refrigerant Fill | ||||
| 416 | Coolant Circulation Pump | ||||
| 417 | Left Duovalve Valve | ||||
| 418 | Right Duovalve Valve | ||||
| 419 | A/C Compressor Activation Circuit | ||||
| 420 (2) | Idle Speed Increase | ||||
| 421 | Auxiliary Fan Circuit | ||||
| 422 | Connection To Instrument Cluster | ||||
| 423 | Switchover Valve Block, Defroster Outlet, Short Stroke | ||||
| 451 | Diverter Flap | ||||
| 452 | Blend Air Flap | ||||
| 453 | Fresh/Recirculated Air Flap (Long Stroke) | ||||
| 454 | Fresh/Recirculated Air Flap (Short Stroke) | ||||
| 455 (2) | Defroster Outlet Flap (Long Stroke) | ||||
| 456 (2) | Defroster Outlet Flap (Short Stroke) | ||||
| 457 | Footwell Flap (Long Stroke) | ||||
| 458 | Footwell Flap (Short Stroke) | ||||
| 459 (2) | Instrument Cluster/Compressor Emergency Off | ||||
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