Good day,
Vehicle make: bmw 120i 2007 model E87
Air conditioning doesn’t want to work, checked voltages on A/C pressure switch. Found 5v going in and only 1.1 v going out. Earth wire test okay. Do not have Ista software to monitor readings( would like to get the it so any recommendations on that will also be appreciated). My question is, what common issues should I look at first or if there’s any diagnosing steps involving this then that will be great help.
Thanks. Can’t wait for someone’s feedback on this matter.
General reply
AC fan work when start ac
Front of compressor turn when engaged
Leak or low R134 or other your car use
Pressure switch open or close
Water temp switch
Check fuses
These are the main that need to be checked first
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