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you need a multimeter that has a series ammeter, not one of the clamp meters, lock the car as normal with bonnet up, (check for bonnet switches) set the meter to amps and loosen one of the battery terminals, do not remove it yet. clip one of the ammeter leads to the pos battery lead, hold the other meter lead to the battery terminal and then lift the battery terminal up, you can now measure the current draw because all of the current draw is passing through the meter. you can now also start removing fuses from various circuits to find which circuit is drawing too much power.
 

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you need a multimeter that has a series ammeter, not one of the clamp meters, lock the car as normal with bonnet up, (check for bonnet switches) set the meter to amps and loosen one of the battery terminals, do not remove it yet. clip one of the ammeter leads to the pos battery lead, hold the other meter lead to the battery terminal and then lift the battery terminal up, you can now measure the current draw because all of the current draw is passing through the meter. you can now also start removing fuses from various circuits to find which circuit is drawing too much power.

Sound methodology and a good diagnostic approach, but beware the current draw for the interior lights when you open the door to get to the fuses. Might be best to remove that fuse before you start,.
 

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no don't you want to know what is being drawn when it is locked and parked. there might be an ecu/controller/timer not shutting down. pull the relays as well one at a time. I have had an air con relay stuck shut.
 

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Does you car have electric tailgate? If the answer is positive search google for "kia sedona sa021"
Some Sedona customers may
complain after operating the rear tailgate and then turning OFF the ignition within 30 seconds,
the battery may become discharged due internal logic of the IPM holding the internal timer ON
and creating a small parasitic current draw.
In my case it was drawing 400mA. It makes something like 10Ah per day, which is huge drain.
 

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No way for light under bonnet not switch off, unless you switch lights master key to ON. But this way all interior lights will remain ON. If master light key is in Auto position there is auto OFF timer that will shut down interior lights, including trunk lamp in 20min.
 
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