System Mounted Binary Pressure Switch
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System Mounted Binary Pressure Switch System Mounted Binary Pressure Switch System Mounted Binary Pressure Switch
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Factory Air System Mounted Binary Pressure Switch

Part No. 37301 Warranty Details  
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Product Features:
  • Contains gaskets, o-rings, or seals to properly replace the product
  • Color coded for easy identification
  • Zinc coated to resist corrosion
  • Vehicle specific applications
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Function:System Mounted Binary Pressure Switch

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4 Questions | 5 Answers
Displaying questions 1-4
  • Q:

    Hello , my question is ; has anyone ever experienced an internal leak from the original switch , and could it come through the switch ? I have a 1992 Honda Accord and I am losing the AC charge . I noticed the switch and the pipe below it was covered in oil so I cleaned it . I've seen no more oil so I unplugged it and there was oil inside the plug and socket . The switch still works fine . Thanks for any reply .
    Asked on 7/26/2014 by CC from Inman , SC

    1 answer



      Hi CC, Sorry, without the presence of your vehicle we would not be able to properly diagnose it nor provide you with a 100% answer. I would suggest that you to take your vehicle and get it thoroughly checked by a certified mechanic before buying any parts that may/may not solve the problem.

      Answered on 7/28/2014 by Steve from AAP
  • Q:

    where is this switch located
    Asked on 6/19/2011 by chris from miltown

    1 answer



      The switch location on each type varies. For further assistance, please provide the year, make, model and engine size of the vehicle in question.

      Answered on 6/27/2011 by Vincent from AAP
  • Q:

    do you have to uncharge system to change this switch
    Asked on 6/10/2011 by D & D from nc

    2 answers



      No, need to drain the system. This switch unscrews from the accumulator. There is a Schrader valve in the accumulator.

      Answered on 6/21/2011 by Vincent from AAP
    • A:

      The answer to this question varies by vehicle. While it is common, as indicated in the reply by AAP, to have this part screw into a shraeder valve, this is not done on all cars.

      By way of example, I am working on a 1990 Honda Accord that uses this pressure switch. There is no valve for this case and the switch does not attach to the accumulator. Rather, the switch screws into one of the hard lines leading to the condenser on the driver's side of the vehicle. (It is near the receiver/dryer.) Replacement of the switch requires evacuating/discharging the system.

      Answered on 3/15/2014 by ACguy from NC from Durham, NC
  • Q:

    what does this switch control and would it cause the compressor not work
    Asked on 8/7/2010 by Anonymous from Portland,TN

    1 answer



      This switch cycles the AC compressor on and off.

      Answered on 8/10/2010 by Kevin from AAP
Displaying questions 1-4

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