My 02 trailblazer when setting for 3 or 4 days will end up with a stone dead battery every thing is off(lights,underhood light,everything)any help. new battery,charging system ok help please
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If this is for the illumination bulbs in the cluster, that would be the park light fuse in the fuse panel. This should be in a panel under the driver's side dash. At least, that is the set-up for earlier model GM vehicles.
Check for things like sun visor vanity lights that are left on and glove box center console lights, trunk light, underhood lights, 99% of the time that is the cause
Disconnect the negative battery cable and put a test light between the cable end and the neg post. If there is a draw, the light will light. Remember the doors need to be closed and the underhood light disconnected (these are draws as well). If the light is lit there is a draw. Removing fuses until the light goes out can pinpoint the circuit. Finding the actual short can tougher.
theres a draw somewhere. these are sometimes hard to pinpoint.start by checking that all lights turn off,glovebox underhood light all lights,you will need a meter to meter the draw amps, then with key off doors closed look at the draw amount,.02 to.03 is allowable, start removing fuses and watch if amps drop,one fuse at atime, start with this to try and pin down a location of the draw.hope this helps.
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