Is your Toyota, Lexus, or Scion's air conditioning acting up or not engaging? The A/C oil pressure transducer switch (or sensor) might be faulty. This ISUMO brand replacement is a brand new part that comes complete with the electrical connector, making installation a plug-and-play affair. The part number is 88719-33020, and it's backed by a 90-day manufacturer warranty. The UPC is 601871707953. This sensor monitors the pressure of the refrigerant/oil in the A/C system and tells the computer if it's safe to run the compressor. Swapping this out can often fix A/C issues without a costly trip to the dealer. A straightforward repair for DIYers who want to tackle their own climate control problems.