2014 Traverse blower problem

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Dave1963

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Recently the heater blower works when it once to. Sometimes when l turn on the blower for heat/ac it works and sometimes it doesn't. Does anyone have any suggestions?
 
Could be the motor or the control module. Since it doesn't occur all the time difficult to pinpoint. An advanced scan tool might help when the problem occurs to check for HVAC codes.
 
By control module does that mean the selector switch for the blower
 
Dave1963 said:
By control module does that mean the selector switch for the blower
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No, older vehicles used a group of resistors to control speed. Modern vehicles use an electronic module.
 
zora said:
No, older vehicles used a group of resistors to control speed. Modern vehicles use an electronic module.
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Where can I find the control module,and can it be tested to see if it's working?
 
Dave1963 said:
Where can I find the control module,and can it be tested to see if it's working?
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I mentioned the scan tool which would be a private shop or dealer. If the problem isn't present it may not show any codes.
 
That's what I'm afraid of. I may invest in a scanner and check it out my self. Is there a certain type of scanner to check for that problem?
 
Dave1963 said:
That's what I'm afraid of. I may invest in a scanner and check it out my self. Is there a certain type of scanner to check for that problem?
Click to expand...
You would have to research that
 
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