Aircon Compressor Clutch

[BigDingus]

My aircon compressor clutch isn’t firing on my RX300 2004.

My clutch turns quite easily. The connection gets 12v when I switch the ac on then quickly switches off. I assume because the clutch doesn’t spool up.

I’ve tried a direct feed to the compressor but it still doesn’t get the clutch to fire.

I can only assume the coil is faulty, so if I can get a coil I will.

This leads me to my question. Does anyone know if this coil is available anywhere?

Also does anyone know what the three pins in the connection are?

Before I purchase one I will be checking if it’s definitely blown.

[The-Acre]

40 minutes ago, BigDingus said:

My aircon compressor clutch isn’t firing on my RX300 2004.

My clutch turns quite easily. The connection gets 12v when I switch the ac on then quickly switches off. I assume because the clutch doesn’t spool up.

I’ve tried a direct feed to the compressor but it still doesn’t get the clutch to fire.

I can only assume the coil is faulty, so if I can get a coil I will.

This leads me to my question. Does anyone know if this coil is available anywhere?

Also does anyone know what the three pins in the connection are?

Before I purchase one I will be checking if it’s definitely blown.

Is the gas ok?  If the gas is very low  due to a leak the clutch won't engage I believe.

[BigDingus]

Yes The-Acre. It’s fully charged and holds it’s charge well.

When I run the self diagnostics it gives a code of 00 which is no faults.

When on is selected on the ac the car revs change up, so the car thinks all is good. It’s only then that the ac shuts down and it announces ‘check air conditioning’ (Or similar).

I’m going to remove the pump and check it.

Thanks for posting. 

[BigDingus]

An update to my post. I used some diagnostic software and it reports 'Compressor Locked'.

Does anyone know what this is?

I turns freely. Both clutch and pulley.

If I can fix this I'll have a go, but nearing replacing the compressor.