I have not yet had to do this repair, but on my Tipo, LEDs constantly flipped, as well as the odometer mileage LED strips failing..... When you get to the 'I have got you nearly out of the pub stage', there may be identifying marks on the LED. Sometimes it is on the LED plastic itself (rare - but on older types), else it is on the stem of the LED metal shaft. You may find further information on the wiring schematic in the handbook. When / if you remove - note / check the polarity of the LED, bimp, bump, cutaway on LED plastic etc. Penguin