Hot answers tagged

10

Maybe not answering your question completely, but: some people doubt how the OBD II connector is connected to power. The specification (SAE J1962 specification) of the connector is quite clear on this: 5.3.9 (...) Vehicle connector terminal 16 is designated Unswitched Vehicle Battery Positive and must be implemented in the vehicle connector. This terminal ...


5

One notable option for an integrated dash cam is the new C7 Corvette. As a dealer installed option, you can get a complete Performance Data Recorder (PDR) that includes a dash cam: The PDR records GPS data, car performance information such as G-Force and steering angle and overlays everything on the through-the-windsheild POV video to give you something ...


3

No, it's not a good idea to feed the camera from the OBD 2 port. Use the feed for the cigar lighter or another switched feed - fused with the capacity for what the camera will demand.


3

Sure, this could easily be done as what's being displayed is just a video feed. You'd just need to leach off of the feed, which would then need to be provided to a recorder. That could be spinning disk, SSD, thumb drive, or flash card. That all depends on they type of recording device being used. There are systems out there which do this, but none which are ...


2

A cigarette USB adapter as others suggested is the easiest method. If you want to get a cleaner install I've used a piggyback fuse adapter yo install an ipod pre-amp to an OEM radio. https://www.amazon.com/Circuit-ATC-Piggy-Standard-Holder/dp/B009K6U582 You just find a fuse that is powered when the car is on, like the radio. It's got two fuses. One for ...


2

It sounds to me like you have connected one end of your test light to the positive side of the battery rather than the negative. This would give the results you are experiencing. I believe that this is what @solarMike is also suggesting in the comments.


1

Use fuse 85 to supply a relay that then powers the camera, that way the fuse 85 only needs to supply a triggering current not the full current required by the camera. Use fuse 61 to supply the relay to power the camera.


1

Yes it will stop the camera draining the battery, but that defeats the "convenience" of having it on - why not locate a fuse which comes on with the accessory position of the key..


1

As @sweber says, the fuse in your lighter socket should be 10 or 20 amps - the adapter states 2.4A per port, so even if you had three things charging it should only be drawing 7.2A (say 8 to allow for inefficiency). If you're blowing the fuse, that suggests to me that, as you suspect, there is a problem with either the charger, the cable or the camera, that ...


1

The fuse 1 for interior lights / dome light fuse will be hot all the time - it's the electronic control after the fuse ie in the door or body ecu yhat puts the lights on or off as necessary. However, getting to the wire on the fused side of that fuse might be more challenging. If you find the wiring diagram then you can identify the colours and then, maybe,...


1

There is a new option with the powered OBD. Now they pair it with a proximity radar which only draws power when and where an object comes within 3-5 m of the car, and auto switches off when there is no subsequent movement.It is also paired with an on off switch. Presumably, this deals with the issues of overdrawing from battery after the ignition is switched ...


1

The radio has an always hot wire that runs the clock. Use it to power small devices. I think on GM it's the pink wire going to radio.


1

No, that's bad because it blocks off the OBD2 port and the wire could get knocked out. You could splice in behind the port if you know which wire is switched 12V though. If you just want the thing to run off car power and turn on and off with the ignition, you should splice into a switched power line under the dash- if there's nothing conveniently close to ...


1

1A) You will not do any damage to the car as long as the device(s) AND the fuse you're using do not exceed the capacity of the wire circuit for that fuse position. Assuming it's the same wire as the '96, the accessories you're attaching are unlikely to exceed the capacity of a wire intended for a defogger. 1B) Any difference in the difficulty in starting ...


1

Integrating a dash cam into your car is doable. I used to have a GPS antenna at the top of my windscreen, wedged between the roof lining and the mirror mount. The wire ran along the edge of the roof lining, inside the A-pillar trim and through the dashboard to a power supply I'd placed in the center console behind the stereo. You could attach the camera to ...


Only top voted, non community-wiki answers of a minimum length are eligible