Where is exactly is the AC inverter fuse located within the inverter unit for the 2nd generation Prius ?
Everything thing about the air-conditioning works well apart from the compressor turning on, so I separated the cable junction and tested for 201 voltage from the inverter unit but it was 0 voltage there I have read about the so called fuse some where tried to find it by opening the unit without success, I think I may be looking at the wrong location, please I do need you help on this
The compressor is not powered in a Gen 2 Prius the same way it is in Gen 3. If the car were a Gen 3, there would be two orange high-voltage wires to the compressor, and they would supply 201.6 volts DC when the car is READY. In a Gen 2, however, there are three orange wires, not two, and you are not looking for 201 VDC, you are looking for a three-phase AC waveform, and only when the HVAC controls want the compressor to run.
Do you have the capability to view codes and data for the A/C system or the hybrid ecu? If there was a "blown fuse" I would expect to have a code somewhere. You need to be able to see why the car isn't (can't?) turn on the compressor. Could be a problem with a pressure sensor or evaporator temperature sensor, but without a compatible scanner you are guessing.
Ok I have a toyota Techscreen scanner so I will a check today and get back here with findings. Thanks for your concern
After doing a self diag on the AC system it came up with these codes 23 (4) ........................... Pressure Switch Circuit 41 ....................... Air Mix Door Servomotor Circuit 42 ..................... Air Inlet Door Servomotor Circuit 43 .................... Air Outlet Door Servomotor Circuit From this report what and where should I be looking at ?
I would look at a wiring diagram to see if those 4 items have any circuits in common. Then specifically I would look at and diagnose the fault with the pressure switch/sensor circuit. I would expect a problem there to prevent compressor operation. Posted via the PriusChat mobile app.
Thanks for you comment, I have opened it several times looking for it but without success, do you please have a picture of it ? Mr guy, how can I get the wiring wiring diagram as advised, thanks Mind you my one is a 2005 2nd gen Prius
