No power to ac clutch

DNOSILLE

Member
Joined
Apr 6, 2011
Location
texas
TDI
vw, bettle
Im not getting power to my ac clutch, have checked pressure sensor, fuse block, fan module, etc, im currently looking for the ac relay under the dash? Or any other thing i might check
 

gquenstedt

Veteran Member
Joined
May 26, 2006
Location
San Antonio, TX
TDI
'06, '03 x 2, '00
with the key in the on position (engine running or not) and the a/c on, do the cooling fans come on?

If yes, then you most likely have a bad fan control module.

If no, then it's probably the pressure sensor.

Where in Texas are you?
 

DNOSILLE

Member
Joined
Apr 6, 2011
Location
texas
TDI
vw, bettle
We,ve tried a new module, and pressure sensor, not sur if both fans come on, im in ft worth texas
 

gquenstedt

Veteran Member
Joined
May 26, 2006
Location
San Antonio, TX
TDI
'06, '03 x 2, '00
What was the source of the new module and sensor?

I ask because I helped someone here in San Antonio who had replaced the pressure sensor, fan control module, fuse block, and finally the computer and still had no a/c. It turned out that the pressure sensor he had purchased from ebay was defective, and was the root cause.

DanG144 has an excellent guide on how to troubleshoot these systems where he gives procedures to actually measure with a volt or digital multimeter to pinpoint the problem instead of guess. I would consult that.
 
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