Retrieving & Erasing Diagnostic Trouble Codes
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2001 Mercedes-Benz ML55, 2001 Mercedes-Benz ML430, 2001 Mercedes-Benz ML320, 2000 Mercedes-Benz ML55, and 2000 Mercedes-Benz ML430. However, it is still accessible from the selected car via links, so may be relevant.
Retrieving and erasing of Diagnostic Trouble Codes (DTC) must be performed using Mercedes-Benz Hand-Held Tester (HHT). See HHT instructions for retrieving A/C-heater system related DTC. After noting codes, see CLIMATE CONTROL DTC table. To erase DTC, follow HHT instructions.
When retrieving DTC from A/C push button control module, short and open circuits cannot be differentiated from each other in every instance. When accessing DTC from any control module memory, all stored DTC are shown. As a result, some DTC shown will not apply to climate control system.
CLIMATE CONTROL DTC
| DTC | Possible Cause | ||
|---|---|---|---|
| B1232 | (1) Refrigerant Pressure Sensor | ||
| B1419 | Electromagnetic Clutch | ||
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