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2003 Chevy truck blower motor runs even with key turned off

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Sonds like a faulty resistor

Posted on Aug 02, 2009

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Your ac switch is shorted need to be replace before you replace take out and run continuity and check for grounds

Posted on Aug 02, 2009

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I have a 95 Buick Roadmaster D blower motor will not shut off even if the key is out


sounds like a blower motor relay or control module. have it check first with your mechanic as the part for your car is expensive. goodluck

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Why won't blower shut off?


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Blower fan runs continuously


If you mean that the blower motor runs even after turning the key off...the resister to the blower motor has to be bad to allow this continuosly get current...:)

Dec 15, 2010 | 2003 Chrysler Town & Country

2 Answers

2003 chevy avalance a/c blower moter runs with ignition shut off


If you have the automatic climate control and the blower motor won't shut off then you have a failing Blower motor speed control module. Something inside this module goes bad and the result is a blower motor that keeps running at times even though the engine is off and the key is out of the ignition. The module isn't repairable but has to be replaced. I believe it is located behind the passenger side of the dash panel.

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Blower motor continues to run when vehicle is off


Your problem is the Relay which is encased inside the Heater/AC Resistor Module. This is a very common problem with GMC and Chevy Trucks. The Relay's return spring fails and the relay is held closed by gravity. The only fix is to replace the Resistor Module. I have a 2004 Silverado and have replaced the Module 3 times and the Blower Motor twice. The Orange wire feeding the Module is always Hot (12V) and feeds the Relay Contact for Highest Blower Speed. Hence the Blower runs all the time even with the Key off and removed.

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1 Answer

Rear a/c remaining on when engine is off


999999995.gif Service VME - HVAC Blower Continues To Run with Key Off SERVICE VME Some 2003 Full-Size Pickup / Utility A/C blower motor continues to run even when the key is removed from the ignition. The root cause is an internal failure within Linear Power Module ( LPM ) or also known as the Blower Motor Control Processor. The service fix is to replace the LPM (P/N 52495874).
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Models: (03 CHEVROLET FULL SIZE PICKUPS AND UTILITIES) and (03 GMC FULL SIZE PICKUPS AND UTILITIES) and (03 CADILLAC FULL SIZE UTILITIES)

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2003 Chevy Trailblazer my AC blower won't turn off!


you have a short to power which will cause it to stay on constantly check your blower motor resistor pack to ensure that it is working and check the wires going to the blower to make sure you have a power and a ground

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2 Answers

Blower motor stays on high, even with key out


the blower motor speed control module is defective, replace it.

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