Sat in the MOT test queue and noticed my reverse light is not working, bulb is okay. Have got a fuse board diagram from the mytuscan website but wanted to know if it is different for a Cerbera as the fuse is okay.Probably the reverse light switch on the gearbox.
The fuse position for the indicators, reverse and brake lights is No.25 on a 2003 4.5. Your fusebox should be the same as mine as it's an M1276 Porsche type one. If your indicators and brake lights are working, it isn't a fuse problem.
I'm not sure about the speed 6 But on the V 8 the reverse switch wiring run close to the exhaust manifold. Cook the wire. causing it to short out. I'm blown fuse