Reverse camera turns on when i go above 40mph (HELP)

[Thedivinesinner]

Hi

Just fitted this unit to my volvo c70 mk2 2006.

https://a.aliexpress.com/_Eu0IrVr

I have got the device to work perfectly but there is one problem.

When ever I go over 40mph the screen switches on to the reverse camera and that only stops when I go back below 40mph.

There is saddly no way to just turn off the reverse camera in the settings and if I unplug it the screen still goes back with no signal in the middle of it.

If Any one has any input why this is happening or how to solve it I would be very grateful.

 

[Thedivinesinner]

Here is what the unit is running on currently.

 

[TorstenH]

Are you using a CAN BUS box?

 

[Thedivinesinner]

Are you using a CAN BUS box?

Yes the box was included.

 

[Thedivinesinner]

Are you using a CAN BUS box?

I will add that my car is not in the options they provide so im using the volvo all option.

 

[TorstenH]

I will add that my car is not in the options they provide so im using the volvo all option.

I think the can box is connected to PIN 14 of the heat unit and can control the head unit to switch to the reverse camera.

The CAN box might misinterpret a CAN signal and outputs a 12V+ signal to pin 14.

 

[Thedivinesinner]

This is what I have no wire is going I to pin 14 though. Only a blue going pin 15

 

[TorstenH]

This is what I have no wire is going I to pin 14 though. Only a blue going pin 15

Then you should check if you can find another CAN setting which is compatible with the box.
Usually there should be a factory setting where you can select your car/model.

 

[Thedivinesinner]

Then you should check if you can find another CAN setting which is compatible with the box.
Usually there should be a factory setting where you can select your car/model.

There is only volvo option in OD even though it says its for a c70 etc.

 

[Thedivinesinner]

Ok solution/work around.

The pin on the canbus unit that controls the reverse camera was pin 7.

I have cut the wire to this pin an spliced s switch in.

When I need the camera to reverse onto my caravan flick the switch in go into reverse.

Not quite as intended but it fixed the issue.

Thanks for all the help!