It turns out the real issue is a high power setting loop in the resistors getting too hot and melting my connections and resistor pins. Issue caused when you use copper wire and aluminum pins.
Thank you for the step by step video. It help me to save money by fixing my own air without having to pay someone. Had no air for a year until I came across your video ….. thank you
My daughter's TRAX burned out two pigtails, one motor, and about 5 resistors. After I fixed it the last time, I removed the charcoal cabin air filter and put in a cheap, thin filter in. No issues now.
Wishful that you still respond to this. I changed the resistor and the wire harness as well. Old resistor only works one high ac/heat the new one worked great for 30 min and now only low settings work. I checked the new resistor harness and that one is getting burned out as well like my old one. I don't know what else it could be. Do you have any idea???
Cut the blower power wire coming from resistor and splice it to the high setting wire going into the resistor, they should be the 2 same color wires, this by passes the high setting loop in the resistor and allows all four setting to work perfect with no excess heat. Still fused in the HVAC controls. For reference only, but it worked in my 2019 Trax LS. In mine they were brn/blk and I cut the C wire and spliced to D with a 3 way splitter. If you do it opposite it won't bypass the whole loop.
The high setting doesn't need to travel through a resistor since the high setting is A. sending full power to the blower motor. B. controlled through a relay behind the storage compartment, and ONLY LOOPS through the resistor. Your high setting will still be fed to the resistor but by not looping through it, the heat won't be created to melt connections and resistors. Removing the back half of the loop and sending 1 2 and 3 through the resistor normally they will simply feed up your high setting wire to the blower, something that's happening with an OEM 5 pin resistor anyway. Chevy could have accomplished this connection with a 4 pin resistor with no loop for high setting and a splice behind the dash in the harness. Your splice will still be fused at the HVAC control panel.
yo were did you get the wire at? I cant find it no were. I did the same as you. I wish I seen this be for all I did. But could you tell me were you got the wire pig tell at. I can not find it at all i went to the part store they say you cant order it from them. so it would help soo much. thank you for your help
So we have a 2020 Chevy trax and recently the hot and cold air hasn’t been blowing. You don’t even hear the fan kick on or try to kick on. Was wondering if anyone has had issues with their Chevy trax or Chevy models in general with this issue. Going to check couple issues I’ve searched but am no mechanic whatsoever
