D3 led rear lights

[onetwentie]

Originally Posted by Delboy

You ought to be able to test via that connector using 12v as the board will have the correct load / resistance to allow you to do that.

I connect the connector to the car using the tail light unit, but the LED's don't light up? whereas they do if I test them separately on the board using the battery (though I take your point about the voltage on my test bed battery)

What can I do to progress the testing of the control board?