Question about 2002 Buick Rendezvous

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Climate contro/fan control knob ceased and will not turn..also when removed found short circuit melting on connector

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Brian, in many cases when you have a problem on a GM part such as a fan-control knob with a short-circuit it is helpful to take the part out and investigate the potential causes of this problem. Then, as you have done, I always suggest you google it and then also come to an online forum such as this to "Talk about your problems". So...Talk about, "Problems". Sometimes it helpful to take baby steps. If you're concerned about safety with the electrical issue it's a good idea to go to a dealer and get it checked out or if you're really worked up about it I would recommend a book by a well known psychologist, who often takes a vacation from his problems, called 'death therapy'. I know this is a little vague but I am currently on vacation from my problems in Lake Winnipasaki but will go into more detail when I'm back home on Fire Island.
Hope that Helps,
CrapOnPan

Posted on Nov 08, 2010

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Posted on Jan 02, 2017

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Heater switch replacment


Hello! it's my job to make things as easy for the customer as possible...Therefore I must ask why you want to replace the heater switch? Is it because you have lost one or two of the switch speeds? Your vehicle is noted for loss of the Blower Motor Resistor...
Changing the Heater switch means removal of the Climate Control Assembly which is not the easiest of jobs...I've included the process...But are you sure the blower resistor is OK? If you have lost 1,2, or all blower motor speeds it's more than likely the Resistor pack. And a lot easier to change...
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Remove climate control:





12_26_2011_2_15_09_am.gif
  1. Remove the instrument cluster finish panel...
  1. Remove the 3 climate control assembly screws...
  1. Disconnect the climate control assembly vacuum connector...
  1. Disconnect the 5 climate control assembly electrical connectors...
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Removal of blower motor Switch:
  1. Remove the climate control assembly.
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  1. Remove the blower motor switch.
    1. Remove the screw.
    1. Remove the blower motor switch.

Removal of blower motor Resistor:


12_26_2011_2_22_49_am.gif
Blower Resistor is under the battery tray...

MOTORCRAFT Part # YH1698 ...cost $25

12_26_2011_2_28_50_am.jpg

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It's four screws on the motor housing, located under the glove box (2 screws) and the wiring is harnessed, so no sweat there.

While it's off, reach up into the cavity that feeds it air on the upper left.

You may want to wear a glove. The design on this generation Rodeo is horribly flawed. I pulled a squirrel-sized wad of rotten leaves and pine needles from mine after replacing the motor and resistor twice.

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B2428 Heater output temperature sensor 1 - open circuit
B2429 Heater output temperature sensor 1 - short to earth
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1 Answer

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I have this same problem, have you found a way to fix it?

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