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Mercedes heater and air conditioner fan does not work. All fuses are intact, the motor and fan speed control unit are in order. Diagnostics using the Kingbolen scanner (Thinkdiag, Launch) and the Ediag program showed several errors in climate control, namely: a17e13, 960315, 912787, 912f87, LIN bus participant power supply, air quality sensor, light sensor, climate fan control unit. Troubleshooting. How to remove the climate control unit, how to check the LIN digital data bus. Link to the Yept-Yeptovich channel: https://youtube.com/@BTI54?si=QegAoVe... Link to the Kolkhozny Auto Electrician 22 channel: https://youtube.com/@kolxozn_electric...