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On my 2005 chevy suburban the front blower fan stopped working. The fuse tested good. It is either the blower fan or wiring assembly right ? Is there an easy way to test either ?
Re: On my 2005 chevy suburban the front blower fan...
Check the resistor i think it's a 7 way connector located by the blower motor i have had were the connector has melted to the resistor if this is the case you will need to replace both resistor and connector
the connector is available at a GM dealer or a AC DELCO parts dealer not sure about aftermarket
hope this helps
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https://fuse-box.info > Home > Chrysler
Fuse box diagram (location and assignment of electrical fuses and relays) for Chrysler Town & Country (Voyager) (2001, 2002, 2003, 2004, 2005, 2006, 2007).
If you don't have wiring diagrams,can't read them,&
or work on your own vehicles & their technology,then
a repair shop or different dealer, is you only option,that
question you knew the answer to
Don't know where you got your info . The heater blower motor electrical B+ power comes from Fuse F 64 a 40 amp fuse . This goes right to the blower motor on the green with orange stripe wire , The black with red stripe wire goes to the switch for high speed . There is Splice 24 that ties into the black with red stripe wire. The splice 24 turns into a black with orange stripe wire . An this wire goes to the blower motor resistor . All the switch does is route the B+ voltage through the different resistors to ground .
Thermal resistor "usually" stops working is because of faulty fan speed switch ???? Totally not true , resistor assemblies fail because of the heat associated with dropping voltage across the resistors , That is why they put the resistor assembly in the air box . Air blows over to cool the resistors . The switch is nothing more then a way to direct different speeds to ground .
Do you know what a wiring diagram is ? http://www.bbbind.com/free_tsb.html Enter vehicle info . Under system click on HVAC , under subsystem click on heater . Click the search button , then on the link . Use a volt meter an test , don't guess !
check fuses for blower, then if good check switch for power then check blower motor for power. run a power jumper to blower motor and make sure blower works
three things left to check, using test light see if you have power at motor with key and switch on,if you do replace motor,if not locate blower motor resistor it will be close to motor,check for power going in,last is the heater control assembly
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.
Automatic climate control or manual ? blower motor control processor , probably . or the blower motor , or the HVAC control module etc.... All these are just guesses , without testing the electrical circuits . Did you check the BLOWER fuse 40amp located in the under hood fuse / relay box And the HVAC /ECAS fuse 10amp in the under hood fuse box ? Plus HVAC I fuse 10amp located in the I/P fuse box .
yes, all blower motors have them to control their speed, High, medium, low.. etc. I earn nothing by helping you, but my rating, a fixya rating and I will walk you through this
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