c) Refer to the basic diagram : mark the vertical lines (73) and (74) on which the lamps (8) and (2) are situated. The diagram indicates that the lamps (yellow sleeves) form part of the L.H and R.H wing harnesses. These wires are connected to the relay (33) (wire with white sleeve) which is itself controlled by the lighting switch (43) (wire with yellow sleeve). The lamps (2) and (8) can also be fed directly by the headlamp flasher from the signalling switch (45) (wire brown sleeve, position (56) ). With the headlamp flasher working it is therefore necessary to check the relay (33), the lighting switch (43) and the different connections of the circuit, again using the installation diagram. Key to White Bc Blue BI Grey Gr Yellow J Brown Mr Mauve My Black N Red R Violet vi Green BASIC DIAGRAM