[seanc.madison]

so i took my 1999 a6 to the ac shop because it was blowing cold then abrubtly stopped. The ac shop said the freon was full and i most likley needed a compressor. why do they always go right to the compressor. i do need to install my new raidator and alternator but dont want to take off the front end and need to again for my ac. I also dont want to spend 400 bucks on a ac system i dont need. i had a code on vcds for flap malfuncion. i cleared it and didnt save it because im not smart enough to. the code hasnt came back and i am not sure what flap it was (if i would have saved the code i could have tested that one and not every one) tomorrow i will check if the compressor is actcualy spinning not just on the barring. but vcds shows the compressor when i turn it off and on. it also dosent throw a code i think it was 3 if its bad or somethig (i cant recall the exact prosses but i was reading the information wile i tested.





Chassis Type: 4B - Audi A6/S6/RS6/allroad C5 (1998 > 2005)
Scan: 01 02 03 06 08 15 16 17 18 22 34 35 36 37 45 55 56 57 65 67
75 76 77

Mileage: 292750km-181906miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 078-907-551-AHA.lbl
Part No: 4D0 907 551 AH
Component: 2.8L V6/5V MOTR AT D02
Coding: 06252
Shop #: WSC 02325
VCID: 6C81C336EF9F4C3B43B-4B1E

No fault code found.
Readiness: 0110 1101

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 01V-927-156.lbl
Part No: 4B0 927 156 G
Component: AG5 01V 2.8l5V USA 8509
Coding: 00000
Shop #: WSC 00000
VCID: 2B03002A2A118B030A1-4B1E

1 Fault Found:
00526 - Brake Light Switch (F)
27-00 - Implausible Signal

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-614-111-EDS.lbl
Part No: 8E0 614 111 A
Component: ABS/EDS 5.3 QUATTRO D10
Shop #: BB 24334
VCID: 1C61D3F67FBF7CBB73B-51F2

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 4B0-820-043-MY1.lbl
Part No: 4B0 820 043 G
Component: A6-Klimavollautomat D55
Coding: 00160
Shop #: WSC 02325
VCID: 1E65D9FE69A36EAB9DF-25A6

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 4B0-959-655-AI7.lbl
Part No: 4B0 959 655 K
Component: Airbag 7 Audi 0501
Coding: 00106
Shop #: WSC 02314
VCID: 38292F66EB47309B773-5118

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 4B0-919-xxx-17.lbl
Part No: 4B0 919 930 RX
Component: C5-KOMBIINSTR. VDO D15
Coding: 07262
Shop #: WSC 42631
VCID: 0F7BB4BABE49D723069-513C

No fault code found.

-------------------------------------------------------------------------------
Address 35: Centr. Locks Labels:. 4B0-962-258.clb
Part No: 4B0 962 258 C
Component: Central Lock/Alarm D30
Coding: 15743
Shop #: WSC 02325
VCID: 290FFA2220ED9913F8D-4F0C

No fault code found.

-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: 4B0-951-173.lbl
Part No: 4B0 951 173
Component: Innenraumueberw. D03
Coding: 00002
Shop #: WSC 26097
VCID: 6099A7061357185BEF3-4B00

No fault code found.

End----------(Elapsed Time: 05:22, VBatt start/end: 12.5V/12.3V)-----------

 

[seanc.madison]

Edit/update I checked the flaps with ac on watched all the arms move and went on to the compressor. Ac on high the compressor wont engage it's just free spinning on the barring. Do I have a sensor or switch that I can force the compressor to engage so I know it's a switch/sensor or the compressor itself. My issue is I dont want to change the compressor and still have a ac issue

 

[seanc.madison]

Tomorrow I'm going to jump the low pressure switch and probably find out the compressor is done. I didn't want to but I'll be happy to finally have an answer to why it's not working

 

[seanc.madison]

I ran power to the 2 grounds on the low pressure switch and didnt get the compressor to engage. Now I used a power probe and only gave 12v to one ground at a time. Should I connect both to 12v or will one individually give power to the compressor clutch? I'm also going to run 12v to the compressor itself and see if my previous test were inconclusive