CMV Posted July 10, 2015 Report Share Posted July 10, 2015 Fighting with my A/C system. Maybe from the symptoms/observations you guys can give me some direction of what to try next? The dash info panel says "service ac system". I get code B1341 which is Air Mix Door Two Movement Fault. This code will not clear with a high-end Soleus nor the on dash code display/reading/clearing methods. The compressor will not start - assuming the trouble code is preventing it from starting, but I've read of others with general one side hot, one side cold that get the same code and their compressors do kick on. On the HVAC control panel it reads "AC OFF" and pressing the AC button does nothing. Always says AC OFF and I don't hear the compressor even attempt to kick on or the clutch try to engage. I replaced one of the air mix actuators - the one all the way to the rear right that's nearly impossible to get at. I can hit the RECIRC button and see the dome-shaped cover over the blower motor move in to place and back to fully open. That actuator appears to be functioning normally (which doesn't = the computer knows that). Then replaced the the other actuator which is under the glovebox and on the left side - very easy to get at. No change, and still getting the code, service AC system message, AC off on HAVC panel, & no compressor running. Running thru the code detection/clearing sequence with the engine running and clearing [attempting to at least] will still not clear the code or allow the compressor to kick on. I did it the right way w/ engine off several times as well prior to w/ engine running. I do not have A/C hi/low gauges but do have the much-despised can of R134a w/ gauge. Gave it a quick shot from the can. Not much, just a little to boost the pressure some in case it was a low refrigerant issue preventing compressor from engaging. Was also getting code B1343 which is Air Inlet Door Movement Fault. That code cleared with the on-board display process and hasn't returned. The Soleus scan tool would not clear it. Possibly changing the actuators fixed that piece, the scan tool wasn't capable but the on-board was, or I haven't left it running long enough to register that code again. Anyway, I'm not really sure where to go from here. The actuators weren't crazy expensive at around $60 ea, but i don't want to continue randomly replacing parts that *might* be the problem. I just got the car, so I don't have good behavior from the AC system to use as a reference. I am thinking it's something computer-related only because I've read a lot of similar posts of people whose compressors were still kicking on even though they had misbehaving actuators. It didn't seem like just a faulty actuator alone disabled the compressor and the AC button on the HVAC control panel. Seems like most with similar codes had blend or temperature control problems, but the overall system was still operating. Could be way off - I'm no mechanic. Quote Link to comment Share on other sites More sharing options...
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