08 Air Conditioning problem - opinion please?

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shadptr
New Member

Posts: 5

08 Air Conditioning problem - opinion please? Oct 27, 2016 17:12:59 GMT

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Post by shadptr on Oct 27, 2016 17:12:59 GMT

Hi all,
would anyone offer their opinion on why I'm receiving this trouble code?
in my 08 a/c climatronic module?

System description: Climatronic
Software number: 5G0907044BL
Software version: 1601
Hardware number: 5G0907044BL
Hardware version: H04
ODX name: EV_ACClimaBHBVW37X
ODX version: 006142
Long coding: 00020004200100010105004000101022

Trouble codes:
B137A31 - Outside air quality/air humidity sensor No signal
static

I tried to do a search but maybe I'm blind!

Thanks

dv52 (Australia)
Moderator

Posts: 6,056

08 Air Conditioning problem - opinion please? Oct 28, 2016 4:14:35 GMT

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Post by dv52 (Australia) on Oct 28, 2016 4:14:35 GMT

shadptr: hmm............ has there been any modifications made to the car regarding either the Air Quality sensor, or the Air Con control module? If not, then the DTC seems to be self explanatory - one, or both of these devices has gone out to lunch!! Likely, the problem is with the sensor since you have only one DTC.

The air quality sensor (which VW calls "G238") lives behind the front right air intake grille (i.e. it's physically inside the plenum chamber). Why don't you check the pin activity on the sensor (G238 only has 3 x pins) - like this :

PIN #1 should have a terminal 15 power supply from fuse position #34 on the "C" fuse-box (which is the one inside the cabin on the lower-left side of the steering wheel on LHS drive cars)
Pin #2 should be connected to earth
PIN #3 should be connected to PIN#16 on the Air Con control panel

Don

Last Edit: Oct 28, 2016 4:28:12 GMT by dv52 (Australia)

Please don't ask questions about car coding/repair via the forum "Message" function. The better place for such dialogue is in the forum proper. That way, the wider expertise of the entire forum community can be applied to solve your problem - thank you

shadptr
New Member

Posts: 5

08 Air Conditioning problem - opinion please? Oct 28, 2016 10:03:58 GMT via Tapatalk

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Post by shadptr on Oct 28, 2016 10:03:58 GMT

Thanks for your reply Don. I believe i once coded for auto air recirculation but i think i reverted the changes. I dont know if the coding introduced this error but it cannot be cleared. I will investigate into the pins. Was hoping to avoid a visit to the dealership. Ty.

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