Air conditioner

2001 MERCEDES BENZ E320
130,000 MILES
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RICHARD SLATER
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How would I test the refrigant pressure switch for this car without a handheld tester?
Jun 9, 2018 at 3:34 PM
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STRAILER
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You can test it using a test light. Here is a guide to help show you how:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

You can test for a ground or power connection through the sensor. Here is the location (below).

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken
Jun 11, 2018 at 11:55 AM