Hi all, I think my A/C High Pressure Sensor on my Fabia Vrs has had it, but before paying out for a new one could somebody please give me a beginner guide to measuring blocks to see the values are what they should be, I'm using a Genuine Rosstech cable, thanks in advance

Is you operate the a/c and do an autoscan, what fault codes to you get?

MBs are no good if it's a fault in the wiring to the G65.

Hi, these are the faults from the autoscan:

Address 08: Auto HVAC Labels: 6Q0-820-045.lbl

Part No: 6Y0 820 045

Component: Klimaanlage X0830

VCID: F2E16AEFBEB4809

3 Faults Found:

01271 - Positioning Motor for Temperature Flap (V68)

30-00 - Open or Short to Plus

01596 - Motor for Outside/Recirculated Air Flap (V154)

55-00 - Adaptation Not Successful

00819 - High Pressure Sensor (G65)

07-00 - Signal too Low

There are problems with both flap units and the G65, which means it could be the control unit. The first thing I would do is check the wiring between the V68 and the control unit.

thanks for the advice I'll check the wiring, I did notice when I tried to reset the flaps to basic settings it had a error on the 000 channel, but allowed me to do 001 & 002 I don't know if this is of any relevance, also the normal heating & controls seem fine.

Edited 3 June, 201214 yr by w13dle

could anybody tell me if the a/c light shows when pressed on setting 1 on the blowers? cheers