Thread: AC challenge: 300SDL compressor cut- out
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  #17  
Old 07-09-2011, 10:37 AM
Brian Carlton Brian Carlton is offline
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Join Date: May 2002
Location: Blue Point, NY
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Pull the Klima.

Test the resistance of the compressor speed sensor using sockets 9 and 11. The value needs to be between 530 and 650 ohms or the sensor needs to be replaced.



Check the voltage for the RPM signal using sockets 1 and 2. Nominal value for ac volts is greater than 2.8V. Engine must be running at idle.
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