Climate Control Unit issue

conradSco

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Aug 23, 2023
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Your Mercedes
W906
Hi all,
Have issue with my W906, my climate control unit wont power up, already changed 3rd time and still nothing. have checked voltage and got 4.5V power on connection to control unit. also have scanned with Ap-200 and get error code U042485 with message "Data received from A/C were implausible. A signal is above the permissible limit value"
Wondering if anyone had similar problem ar can direct me where to start.

Thanks
 

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