Testing DB10 off car

[Rob_Reilly]

Here is the thread from October when we discussed the DB10.

Brake lights and rear directional not working

This is all good stuff and since the topic of the DB10 relay and its mysteries comes up from time to time I thought a diagram that shows exactly what is going on inside the box might be useful. [Override Relay 3] The box contains a dual relay (which is just two relays joined together electrically), one for the left side and one for the right. When the direction indicator switch is not operated neither relay is energised. When the brake pedal is pressed the stop light switch is closed and th…