Headlamps

Fuse 15 of the passenger compartment fuse box (C580-30) is connected to the LH front side lamp (C538-2) by a red/black wire. The lamp is then earthed (C538-1) on a black wire. Connected in parallel with the LH front side lamp is the LH trailer pick-up (C877-1), which is also fed by a red/black wire. The trailer pick-up (C877-2) is connected in series to the LH tail lamp (C404-3) by a red/black wire. The tail lamp is earthed (C404-1) on a black wire.

Headlamps

With the lighting switch in the main beam position, power flows through the switch (C041-4) to the headlamp relay (C282-87) on a blue wire. The relay coil (C282-85) is energized when the ignition switch is in position "II", and is earthed (C282-86) on a black wire.

Dipped beam

When the relay coil is energized, it allows current to flow across the relay (C282-30) to the column switch (C036-1) on a blue wire. The column switch (C036-6) is connected to the dim dip relay (C048-8) by a blue/red wire. As the dim dip relay is not energized, current is allowed to flow from the relay (C048-2) to fuses 11 and 12 of the passenger compartment fuse box. Both fuses are fed by blue/red wires, and are connected in parallel. Fuse 11 feeds the RH headlamp, fuse 12 the LH headlamp.

Fuse 11 of the passenger compartment fuse box (C580-22) is connected to the RH headlamp (C011-2) by a blue/black wire. This illuminates the headlamp dipped beam and is earthed (C011-3) on a black wire.

Fuse 12 of the passenger compartment fuse box (C580-24) is connected to the LH headlamp (C009-2) by a blue/black wire. This illuminates the headlamp dipped beam and is earthed (C009-3) on a black wire.