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Old 09-11-2011, 08:33 PM   #1
Bradkap
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12 Volt Outlet Question

Is there any way to adjust the 12 volt outlets so that the power to them shuts off when the engine is shut down ? I do not want to have to remember to always turn off NY appliances.


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Old 09-11-2011, 08:42 PM   #2
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Why wouldn't they shut off? They don't shut off immediately when you remove the key, but they do shut off, otherwise they would be sapping battery life...
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Old 09-11-2011, 09:16 PM   #3
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Its not going to drain your battery. Unless you're running a power inverter with your home office running on it without the engine (alternator) running.
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Old 09-11-2011, 11:37 PM   #4
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Quote:
Originally Posted by BetaDnB View Post
Its not going to drain your battery. Unless you're running a power inverter with your home office running on it without the engine (alternator) running.
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Regardless, the accessory power doesn't stay on. It does only until you open the doors and get out of the car. Why would the 12v outlets be on the constant?
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Old 09-12-2011, 01:02 AM   #5
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I think my aux power stays on also. My GPS stays on and I have not tried to wait until it self powers down to verify that it loses power.

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Old 09-12-2011, 04:12 AM   #6
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This following is taken from the service manual. The power control for both 12V outlets is the same as the demand lamps.

The BCM provides automatic shut-off of the courtesy and demand lamps after a time-out period when the ignition is OFF. A timer in the BCM starts when:
• the ignition changes to OFF,
• any door or liftgate/luggage compartment lid becomes ajar,
• an UNLOCK button of the RKE transmitter is pressed,
• a door is unlocked using a key, or
• the door lock switch is pressed.

When 10 minutes (30 minutes for demand lamps) have elapsed, the BCM automatically shuts off voltage to the lamps. The timer restarts (voltage is restored if the BCM is in battery saver mode) if:
• the ignition changes out of OFF,
• any door or liftgate/luggage compartment lid becomes ajar,
• the UNLOCK button of the RKE transmitter is pressed,
• a door is unlocked using a key, or
• the door lock switch is pressed.

Last edited by Kabigon; 09-12-2011 at 03:16 PM.
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Old 09-12-2011, 05:27 AM   #7
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Ok thanks everyone. In my Hondas everything shuts down when the car shuts off. I tested the Focus and the 12 volt outlets remain on for at least 5 min. I will do a longer test to see what happens.
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Old 09-12-2011, 07:14 AM   #8
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I my 2004 I can charge my phone with the car off, Never caused any issues.
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Old 09-12-2011, 09:03 AM   #9
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common misconception (and frequently posted...) the usb and 12v ports only stay on for about 10 minutes after you exit the vehicle. if you're looking to join the DBC you'll have to find another way.
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Old 09-12-2011, 01:42 PM   #10
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Can confirm without any doubt that the power outlet stays hot for some time after the car is locked and then switches itself off. (30 minutes later)
Did the experiment tonight with a garmin navigator.
Once the key fob is pressed to unlock doors power is restored.
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Last edited by dasilvarsa; 09-13-2011 at 12:06 PM.
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