The fuse box is located under a small rectangular trim panel on the dashboard on the passenger side. Hope this helps you find it. Having the old relay and the vehicle information will enable the parts store to supply you with the correct, new relay. . When current passes through the coil, a magnetic field is formed.
Sometimes air conditioning problems in an automobile can be an easy fix, even for those of us who know nothing about cars. It takes a lot of reading, the diagnostic flow refers you to other sections of the service manual, so you end up reading the general notes, electrical, and manual or automatic ac. The compressor came on and took freon. Here is the diagram for compressor. One such circuit is that of the. Relays are used in many circuits throughout your vehicle. When you say it seems to be full of gas freon have you actually put a pressure gauge on the system? Inside the driver's side fender, close to the front of the car, there is a bracket that is held in place by one bolt, but which has a short horizontal bar as part of it which has two large clips encircling two cylinderical devices which have wires clipped into them at the bottoms.
Also there is a refridgerant pressure sensor and if that is faulty it will give the wrong readings to the computer which in turn will not give the correct voltage to the relay which would make it to where the relay would engage the compressor clutch. There is no signal at the clutch terminal, and that's as far as I got so far. The other one is the condenser fan relay. The lines tend to corrode or develope leaks, esp. Before making a costly and time-consuming trip to the dealer or a mechanic, give troubleshooting the problem a shot. As soon as you give it any gas the clutch kicks out and you have to repeat by unplugging and plugging switch back up before it will come back on.
Got it all back together and went to charge ac wouldn't take any. This will rule out the compressor being bad as well. I'm a refrigeration mechanic, so putting my gauges on it was the easy part. I can use some help. The ground connection is via electrical connectors.
Find the fuse box on the interior of the car. Next, I popped the clutch single wire terminal. The only other thing that would not allow the pump to come on is a blown fuse or the wiring has been damaged or shorted. Internal connections of all of the power distribution center circuits is accomplished by a combination of bus bars and a printed circuit board. Note compressor is new condensor is new and pressure switch is new from nissan. Jul 27, 2011 yes, but your ac system contains switches, one low preasure switch to shut compressor down when freon is low, this is to avoid compressor damage,if low on freon the compressor will not turn on.
Bad switch on your climate control? Upon making the switch, there will be 12vdc on both sides of the switch. After that, I only needed to read the compressor replacement procedure, to convince my self that I don't really want to deal with it. I lean to bad module. Use a screwdriver or chisel that's end is covered with tape to avoid scratching the trim to pry off the panel. Power is supplied to this clutch through a relay. It could also be the relay for the compressor as well.
It is usually almost as economical to replace the complete compressor with clutch installed than to just purchase a clutch. If the compressor relay is functioning, check for power at the compressor clutch. When auto active test mode is actuated, horn chirps once. With engine running, fan and ac switch on, I was able to detect good voltage at the terminal. The integrated power module cover is removed to access the fuses or relays.
Compressor shaft was spinning normally wasn't locked up. Might be worth having a look under your vehicle and seeing if there's an sign of leaking. The problem most likely was with the clutch. If the pressure is too low, the compressor will not engage. Mark answered 5 years ago Check that you have 12vdc on one side of the switch to ground.