Mercedes Benz

The OBD-II trouble code P0650 indicates a malfunction in the control circuit of the Malfunction Indicator Lamp (MIL) in the vehicle. The MIL, also known as the Check Engine Light, is a warning light on the dashboard that illuminates when there is a fault detected by the vehicle's on-board diagnostics system (OBD-II). The MIL control circuit is responsible for controlling the illumination of the MIL and communicating fault codes to the driver. A malfunction in the MIL control circuit can cause a variety of issues, such as the MIL not illuminating when there is a fault detected, or the MIL remaining illuminated even when there is no fault detected. Additionally, a malfunction in the MIL control circuit can prevent the driver from being able to retrieve diagnostic trouble codes (DTCs) using an OBD-II scan tool. In order to diagnose and repair the issue, a qualified technician will need to use specialized diagnostic equipment to communicate with the vehicle's OBD-II syste...