Yes another A/C blower motor thread
#16
Thanks again
#17
Thank you very much for that! I did the 30 minute reset and it did not change anything. So I'm at the point of 2 possible steps/scenarios:
1) Confirm the relay and fuse for the compressor valve. I think I've included them in my general checks, but could never confirm specifically which is which, especially if they're hidden somewhere. I bought manuals online, but still can't find them after several hours of looking. If anyone knows specifically the location, I would be very grateful
2) If relay and fuse are confirmed and checked good, just throw in a new blower, with the hope it's something odd/finicky within the blower regulator not communicating back to the computer. I think that would be very odd, considering the (restored) functionality of the blower, but I'm at my wits end at this point
Any and all thoughts are much appreciated
#18
Rennlist Member
With the engine running, confirm/select: AC MAX button lit, AC button is lit, temp window is "LO" and fan speed indicator is highest bar and blower is spinning highest. Access the area under the hood where the H and L refrigerant ports are, around the power steering and PDCC reservoirs. Touch the the two pipes to see if there is a noticeable difference in the temperature.
#19
With the engine running, confirm/select: AC MAX button lit, AC button is lit, temp window is "LO" and fan speed indicator is highest bar and blower is spinning highest. Access the area under the hood where the H and L refrigerant ports are, around the power steering and PDCC reservoirs. Touch the the two pipes to see if there is a noticeable difference in the temperature.
I had performed this check before, but just now repeated it just in case. Still both are hot. I'm still convinced an electrical issue is preventing the refrigerant from circulating. Either the compressor regulator/valve circuit, or the blower circuit. This problem happened suddenly during a heavy rainstorm. It had been ICE COLD AC when it happened. I went through all the drains, etc.
I had also started a thread and jumped on other existing related threads, but was getting no responses, which led me to starting this one. I'll include here the following info/excerpt from them:
************************************************************************ *
- "I have the Xtool diagnosis tool. I’m not fully versed in it, but was able to feel around it a bit and pulled the following DTC's:
- 8032 Right Front Footwell fan outlet sensor short circuit/open circuit with B+
- 8452 Communication with LIN bus (air conditioner 1)
- Actuation test: LIN controlled motor verification run
- Results: All tests were successful except for the following failures:
- Successful programming status: Right extended ventilation area (Fail)
- Successful programming status: Right extended ventilation element, left (Fail)"
- Results: All tests were successful except for the following failures:
I have since cleared the faults (mistake?) after fiddling with the blower connector and getting it to operate normally, and now I'm not running the car long enough to get new fault codes just yet
Still looking for the relay and fuse for the compressor regulator. Any ideas on their location?
Thank you again for the help
Last edited by Tarek9xx; 08-12-2024 at 07:22 PM. Reason: spelling/wording/punctuation
#21
I have a single file workshop manual, approximately 11,000 pages
On page 10827, it shows the A/C compressor valve wired as follows:
GND (Brown Wire) to GP-21 ground point in left kick panel
Positive (VIO/YEL wire) to Pin 4 in connector D, on the back of the A/C control unit. There is a symbol that I don't recognize in the path of this connection, and I'm thinking it's an LED
So should we conclude that there is no relay for the A/C compressor valve?
#22
Rennlist Member
Just spitballing, but have you checked to make sure you have enough refrigerant in your system?
#23
Rennlist Member
I replaced the blower motor in my 2011 S after 180,000 miles. I bought a new import on ebay, and it works perfectly. If you get a new blower motor, once you have it wired up, make sure to test if through all the cycles. Though it is not a difficult job, It is not a job you want to do twice.
Last edited by 11bravo; 08-14-2024 at 12:22 AM.