Question about 2003 Chevrolet Silverado 1500

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2003 silverado blower motor stays on when key is out of ignition ran my battery down overnight

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Repair short to power or remove the Retained Accessory Power relay, and blower HVAC fuse.

Posted on Mar 12, 2011

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Dec 11, 2015 | 2004 Chevrolet Silverado 3500

2 Answers

When I turn off the ignition key the radio and dashlights stay on until it runs down the battery

sure your not turning key to accessory position ? but then key wouldn't come out. maybe ignition switch is the problem.

Jan 31, 2013 | 2004 Chevrolet Silverado 2500HD

1 Answer

What is making my 2005 Silverado's blower motor stay on high even when the truck is turned off? It keeps running, it drained my battery.

Your BCM (body control module), must have gone bonkers. Have it checked out. Might just need a little tweaking-like re-setting.
Good luck.

Dec 05, 2011 | 2005 Chevrolet Silverado

1 Answer


No, the battery will not run down due to this problem. When you shut off your truck and pull out the key, the power to the motor will be cut off and should stop blowing. Depending how your vehicle is set up, the blower will stop as soon as you shut off the ignition key, or when the door is opened like it does on my 2005 Chevy Uplander van. If your battery is running low, you either have a worn out battery or some extra accessory is loading it down.

The resistor pack which limits the current to your blower motor when your switch is set on the lower settings is most likely bad. These are usually located close to the blower motor. On my 2002 S10, it is located in the engine compartment on the passenger side, attched to the blower motor air duct. the dealer or local auto parts store will have this part. Unfortunatly, I have not changed one on your specific vehicle, so can't give you more detail than I already have.

Hope this helps.

Jan 01, 2011 | 2001 GMC Yukon XL

2 Answers

When I turn my car off the air conditioner still runs-I needed a jump the other day because it ran all night and wore the battery down.

OK, if the relay for the A/C fan is bad, then the radiator's fan will keep running after turning off the ignition. Also, if the fan for ventilation of the A/C in the cabin stays on after the ignition is turned off, the relay for that is bad.

Good luck on this repair.

Sep 20, 2010 | 2001 Buick Century

1 Answer

Defroster comes on when truck is turn off and key is removed from ignition, and it keeps running the battery down???

If you have eatc the blower speed controller is shorted causing the blower top stay on. Replace the speed controller,it will fix the problem. Good luck.

Nov 14, 2009 | 2003 Ford F150 Regular Cab

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).


Aug 25, 2009 | 2003 GMC Yukon

1 Answer

2003 silverado blower fan stays on..

under the passenger side dash, right above floor board there is a wire connector. That connector is for your blower resistor. If you unhook it, the blower will stop running, hook it back up and you will have a blower. You can also remove the fuse. Point being you can use your truck. Order the new part and replace it. I can't remember how many wires went to it off hand, its rectangular, mayber 6-7or 8ish.

Jul 11, 2009 | 2003 Chevrolet Silverado 2500HD

2 Answers

Blower motor stays on high, even with key out

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

Dec 24, 2008 | 2002 Chevrolet Silverado

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