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2006 Yukon XL,blower fan contiues to run even after the key is removed from the ignition???? Had to remove fuse under the hood to stop it,any suggestions
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You have a faulty blower motor resistor and wiring harness. If you pull the fuse for the HVAC blower thats in the fuse panel under the hood, that will stop the blower and keep it from killing the battery.
The blower motor resistor is under the dash on the passenger side. Remove the plastic hush cover under the dash and you'll see the resistor and the wiring harness assembly attatched to the duct just next to the blower motor. It sits right above where the passengers feet would be.
The dealer has upgraded the wiring and they will sell you a harness kit along with a new resistor. this is a very common problem and is relatively easy to fix. Use a bit of dielectric grease on the plug connections and when you splice the new harness in to avoid any future corosion of the connections.
there could be partial contact in the blower controls which has resulted in total loss of contact, in blower speed affected. replacement of the entire blower control switch should resolve it
needs a blower replacement located under dash on passenger side remove glovebox and take out screws holding cover on .unplug wiring harness to fan ad replace blower
If this is an intermittent problem,
remove the IPC 10A fuse in the fuse box under the hood,
not in the fuse panel by the driver side door,
for 5 minutes.
The electronics will reset.
Look under the van,on the drivers side near the radiator,it should be in that area.Follow the wires from the fans,they should go right to the module.This is for the cooling fans for the radiator.For the resister module for the blower motor look near the blower motor in the blower box.It is near the blower fan.It can be under hood,but it will be mounted with two screws.Remove the two screws,but you need to remove the wire plug in first.Pull it out .It goes inside of the blower box.If you replace this module,replace the blower motor also,because the blower motor is what causes the resistor to burn out.Did you check voltage at fuse with key on?If you did not check the fuse with key on,you got a false reading.If you checked the fuse with key on,look for a bad ignition switch,or a fusible link burned into coming off a pos. terminal post where the battery cable goes to under the battery.If the blower will not work at all even on high blower,the resister most likely not the resistor.The blower motor relay is most likely the problem.
The BLOWER MODULE is located on the A/C EVAPORATOR housing located UNDER THE HOOD passenger side firewall. Has 2 electrical connectors. Mounted with 4 screw bolts.Hope this helps
Per your description, I believe you may have a blower fan relay that is stuck closed. Remove the relay from the under-hood fuse center and see if the fan stops. If it does stop, put the relay in slowly and see if you here the relay "click" and the fan come back on. Let me know. Regards,
I don't know if you already fixed it, but I had the same problem on my 03 yukon, TysonRicky is right. In my case it was the blower control module. You can find it right under the glovebox. It cost me close to $100 for a new one, but very easy to replace. Can't even imagine how much it would've cost me if I had a mechanic do it.
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