No. Lift the battery lead and insert in series with the leads a Volt Ohm Meter configured to read milliamps.. Your vehicle should have less than 50 milli-amps draw with every thing in the vehicle shut down, and doors closed (affects security system current draw, not to mention dome light).

I've actually measured it on my 2000 4Runner.. With the security system, remote key fob lock/unlock feature (this stuff is running all the time), the draw was 40ma..

Opening the doors causes the security system to draw more power (dome light turned off) as it comes out of its "sleep state" into active operation as shown in the first chart below...

Leaving a door "ajar" even with the dome light turned off, will run the battery down overnight due to the increased security system draw. I found this out when I parked the vehicle in the garage and left doors open, dome lights off to dry out the carpet from some spilled water... <img src="/forums/images/graemlins/rolleyes.gif" alt="" /> <img src="/forums/images/graemlins/rolleyes.gif" alt="" />)

Ignore the second chart, those are things specific to my vehicle..