Start - stop tech issue

jokiin

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#21
Thanks Jokiin. I thought the ODB feed should be permanent? Would that not be the case? I have had the circuit tester on it and seems to be still supplying power.
OBD is a connection standard but it's not a standard protocol so no guarantee that the vehicle manufacturer will make this permanently live, the fact that you have a PMP and your power cuts out suggests it is cutting off, for a lot of recent BMW models it is necessary to go direct to the battery for the permanent feed as the computer can disable any circuit which has a load that is not meant to be there
 

Triggs88

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#22
OBD is a connection standard but it's not a standard protocol so no guarantee that the vehicle manufacturer will make this permanently live, the fact that you have a PMP and your power cuts out suggests it is cutting off, for a lot of recent BMW models it is necessary to go direct to the battery for the permanent feed as the computer can disable any circuit which has a load that is not meant to be there
Cheers! So what fuse would you suggest? Do you think use a circuit tester connected to each of the fuses and turn the dash on without engine?

Thanks!
 

jokiin

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#23
Not sure which fuse you should use, as mentioned previously BMW's can disable circuits if there's a load present which doesn't belong, in a lot of cases the permanent feed needs to be taken directly from the battery to bypass the computer
 

Triggs88

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#24
For anyone that is interested. I have done alot of trial and error when using the BlackVue DR650GW 2 channel dashcams with a Powermagic Pro on a BMW F10/11/06/14 (5/6 series). I have found this combination is the best when connected to the fusebox in the glovebox:

Battery cable (Yellow) - Connect to Fuse 3 (OBD)
ACC cable (Red) - Connect to Fuse 12 (Light Module)
Ground cable (Black) - Connect to the bolt on when you take the side panel off (Where the Airbag key switch is)

Set the Powermagic Pro with this config:
(From left to right)
Up, Down, Up, Up, Up, Up

This will allow the dashcam to work for 6 hours as I have found that it dies after around 7 hours when set to 12 hours

Recording will also continue when car is off with stop start.

Hope this will help someone.
 

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