ODB-II Power

Stock4Evr · 05-24-2018, 06:41 AM

When a device, in this case a Dash Command module, is connected to the ODB-II port does it draw power when the car is turned off? There are no lights to indicate that it is drawing power.

chris_flies · 05-24-2018, 09:03 AM

Quote:

Originally Posted by Stock4Evr

When a device, in this case a Dash Command module, is connected to the ODB-II port does it draw power when the car is turned off? There are no lights to indicate that it is drawing power.

I don't think so, I think they're only powered when the ignition is on or recently turned off...

YearOneOne · 05-24-2018, 09:13 AM

I have read that it does but I have left my dcan cable plugged in as much as 2-3 days and my battery hasn't died

blue135 · 05-24-2018, 09:55 AM

I have a Scan Gauge II plugged in full time. It shuts down a few seconds after ignition and does not come to life until a few seconds after the ignition is turned on again. This has been in place for three years and I have noticed no battery issues I would attribute to the Scan Gauge

YearOneOne · 05-24-2018, 09:56 AM

So I guess it does turn off that's relieving

Matticus91 · 05-24-2018, 10:56 AM

It turns off, I have a Carly unit that shows when it's getting power. It blips on when i walk near the car with my key though so be aware of that if you have CA

YearOneOne · 05-24-2018, 11:26 AM

Quote:

Originally Posted by Matticus91

It turns off, I have a Carly unit that shows when it's getting power. It blips on when i walk near the car with my key though so be aware of that if you have CA

Thanks Matt!

Stock4Evr · 05-24-2018, 03:37 PM

Tks to everyone who responded. This puts my mind at ease. I also assume, and we know what the means, that the two pronged plug for an apple device also shuts down when the ignition is off. Tks again.

05-24-2018, 06:41 AM	#1
Stock4Evr RetNavSpook 67 Rep 398 Posts Drives: 2012 135i - 2016 320i Join Date: Jan 2014 Location: Canyon Lake, Texas iTrader: (0)	ODB-II Power When a device, in this case a Dash Command module, is connected to the ODB-II port does it draw power when the car is turned off? There are no lights to indicate that it is drawing power.
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05-24-2018, 09:13 AM	#3
YearOneOne Captain 361 Rep 727 Posts Drives: 13 135i mineral grey Join Date: Jun 2016 Location: Maryland iTrader: (1)	I have read that it does but I have left my dcan cable plugged in as much as 2-3 days and my battery hasn't died
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05-24-2018, 09:55 AM	#4
blue135 Captain 368 Rep 650 Posts Drives: 2008 135i Convertible Join Date: Aug 2015 Location: Sarasota, FL iTrader: (1)	I have a Scan Gauge II plugged in full time. It shuts down a few seconds after ignition and does not come to life until a few seconds after the ignition is turned on again. This has been in place for three years and I have noticed no battery issues I would attribute to the Scan Gauge
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05-24-2018, 09:56 AM	#5
YearOneOne Captain 361 Rep 727 Posts Drives: 13 135i mineral grey Join Date: Jun 2016 Location: Maryland iTrader: (1)	So I guess it does turn off that's relieving
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05-24-2018, 10:56 AM	#6
Matticus91 Brigadier General 3475 Rep 3,722 Posts Drives: 2013 135i Join Date: Aug 2015 Location: Washington DC iTrader: (6)	It turns off, I have a Carly unit that shows when it's getting power. It blips on when i walk near the car with my key though so be aware of that if you have CA __________________ "Tobias" 2013 135i ///M-Sport 6MT • Pure Stage 1 • XDI 35 HPFP • 404whp/440wtq IG: msteelio91
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05-24-2018, 03:37 PM	#8
Stock4Evr RetNavSpook 67 Rep 398 Posts Drives: 2012 135i - 2016 320i Join Date: Jan 2014 Location: Canyon Lake, Texas iTrader: (0)	Tks to everyone who responded. This puts my mind at ease. I also assume, and we know what the means, that the two pronged plug for an apple device also shuts down when the ignition is off. Tks again.
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