Miggins

OK Found the pressure sensor/switch behind the RHS foglamp - Thanks With the aircon on auto the radiator fan is not spinning. I have been unable to get a meter on the high/low pressure switch connectors (need to come at it from the wheel arch not from the undertray) Can anyone ID the test criteria for the high/low pressure sensor/switch? I need to confirm there is enough refrigerant in the system to allow it to operate. As the the system isn't 'pumping' (motor is not engaged) I assume I will be testing the 'static' pressure settings but these should trip the low pressure switch (if the Aircon Eng put in enough refridgerant as he stated)? Thanks in anticipation Dave

Thanks Guys seatkid, Yes it does have the LCD panel and it doesn't flash (was previously advised if there was an error it would flash but didnt know the conditions). I've already removed the under tray so as soon as, I'll have a look underneath and power the clutch. Chris, Error codes: Ex-VAG mechanic checked - I think he used the Snap-On tool(?). I don't know if these report on the air con error codes for VAG however none were displayed. If I remember correctly it is displaying a valid external temp.....(will confirm) If its not the 3 way switch or the external temp sensor, what else would result in no power to the clutch? Thanks again - will report back as soon as.

Hello seatkid, I have had my system checked but the compressor isn't receiving any power. Can you advise on the best way to test these switches please? 1. External temp - I assume this is normally closed when the temp is above 5C? 2. Icing switch (Ford engines only) - NA as I have a SEAT 1.9 PD (2003) 3. 3 way pressure switch (located near the dryer on the Mk 1) - I have a MKII but assume it is located in the same area (struggling to find it!). Can you ID what I would expect to get if I put a meter on - with/without the wiring connected? Is it OK to directly power the compressor (for a short time) just to see if the solenoid/clutch is ok ? Thanks