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02-16-2023, 10:18 PM
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#1 |
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Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,286
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Help I got a draw
On a 04 Avalanche. I have unhooked the neg cable and placed my test light one side on the cable the other to the neg term at the battery. I have unhooked one at a time every single fuse and relay and even the breaker. I also unhooked and unplugged the alt, yet still the test light shines. I rolled down the dimmer[heard that some GM had that as a problem] yet I still have a lit test lamp. Any ideas where to look I'm stumped. This truck has nothing extra added to the electric stuff it is all just a stock Av. Thanks in advance Jim
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02-17-2023, 12:26 AM
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#2 |
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Registered User
Join Date: Aug 2015
Location: Las Vegas NV
Posts: 380
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Re: Help I got a draw
When you say every fuse and relay, you did both fuse boxes?
__________________
Customization is what you want it to look like -- not what other people think it should look like |
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02-20-2023, 06:11 PM
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#3 |
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Moderator
 
Join Date: Jun 2017
Location: Greensburg. PA
Posts: 2,324
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Re: Help I got a draw
Unplug the computer plug and check again....most computers need a small draw which would account for your light.
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Family and country before all others... 2006 Chevy Silverado (Daily Driver) 2025 Chevy Equinox 
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02-20-2023, 10:17 PM
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#4 |
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Moderator
Join Date: Aug 2017
Location: Cabarrus
Posts: 426
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Re: Help I got a draw
Hvac blower motor resistor
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Alex 1967 C50 292ci Lumber truck 1967 C50 292ci Dump truck 1967 C60 366ci Fire truck |
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02-21-2023, 09:04 AM
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#5 |
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Registered User
Join Date: Oct 2009
Location: .
Posts: 2,187
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Re: Help I got a draw
I suggest using an amp meter or an amp setting on a DVOM. Test lights work great for older cars without modules in them. Not so great with these trucks that have modules that have time delays to turn off.
*If you have RPO CJ2, the HVAC module can take 4-5 hrs to turn off. That is normal A draw should be 30 milliamps or less after all modules have shut down. |
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