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00819 - High Pressure Sensor g65 testing using VCDS help


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#1 Marky_Mark

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Posted 02 June 2012 - 12:23

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

#2 rwbaldwin

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Posted 02 June 2012 - 12:35

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.

#3 Marky_Mark

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Posted 02 June 2012 - 13:42

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

#4 rwbaldwin

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Posted 02 June 2012 - 20:44

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.

#5 Marky_Mark

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Posted 02 June 2012 - 22:58

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 by w13dle, 03 June 2012 - 09:07.


#6 Marky_Mark

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Posted 10 June 2012 - 17:52

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




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