I recently discovered my suspension had a on/off switch for the compressor on the passenger side. The pump worked for a little while, but it was shaking all over and I could hear it while driving. It died one day and I lost all air pressure in my rear bags. I hooked the compressor up to my 12v testing station and it would work for a couple seconds and start acting like it was stalling out, hesitating to move the piston. I bought a used one and it is doing the exact same thing when on the testing station and not working at all hooked up to the car.
I tested the wires at the plug and the RD/BK together was getting a 12.5v on my tester while the car was running but the GY/RD and any other wire was getting nothing. The LG/RD on the ground was showing 12.5v also.
I tested the wires at the plug and the RD/BK together was getting a 12.5v on my tester while the car was running but the GY/RD and any other wire was getting nothing. The LG/RD on the ground was showing 12.5v also.