Wiring diagramComponents
| Component code | Name | Assembly reference |
| B1 | Junction unit | B5 | MAXI FUSE box | C10 | Left front earth | - |
| C10 | Left front earth | - |
| C11 | Front earth right | - |
| C11 | Front earth right | - |
| C15 | Facia earth, driver's side | - |
| F10 | Left headlamp | F11 | Right headlamp | H1 | Ignition switch | H5 | Stalk unit | H5 | Stalk unit | J45 | Dipped beam maintenance relay | - |
| J45 | Dipped beam maintenance relay | - |
Location of componentsComponents
| Component code | Name | Assembly reference |
| B1 | Junction unit | B5 | MAXI FUSE box | C10 | Left front earth | - |
| C10 | Left front earth | - |
| C11 | Front earth right | - |
| C11 | Front earth right | - |
| C15 | Facia earth, driver's side | - |
| F10 | Left headlamp | F11 | Right headlamp | H1 | Ignition switch | H5 | Stalk unit | H5 | Stalk unit | J45 | Dipped beam maintenance relay | - |
| J45 | Dipped beam maintenance relay | - |
DescriptionThe vehicle has two special lamps for the dipped beam headlamps.The dipped beam headlamps are switched on through the steering column switch unit by turning the special ring nut in the position after the side lights.A special relay - under the dashboard next to the junction unit - keeps the dipped beam headlamps on with the main beam headlamps on.The circuit is protected by two fuses, one for the right hand headlamp, one for the left hand headlamp.The dipped beam headlamps circuit also gives the go ahead for the operation of the headlamp alignment and the headlamp washer circuit.
Functional description The circuit for the dipped beam headlamps is operated by the steering column switch unit H5. By placing the switch in the dipped beam position, the line which supplies the headlamps F10 (left) and F11 (right) is supplied controlled by the ignition. Each circuit is protected by a fuse in the junction unit B1: F5 for the right headlamp and F4 for the left one. With the dipped beam headlamps on, this supply passes through the dipped beam headlamps maintenance relay/remote control switch J45. If the dipped beam and main beam headlamps are switched, this supply is interrupted, but it is replaced by the one supplied from pin 87 of remote control switch J45: the signal for switchign on the main beam headlamps - through the line for fuse F7 of the junction unit B1 - energizes the relay (pin 85) which switches the supply at the direct line (maxifuse J/B2 for B5) which keeps the circuit for the dipped headlamps and the main beam headlamps supplied. The supply line for the right lamp - protected by fuse F5 - also acts as the go ahead signal for the headlamp alignment ( See E3080 HEADLAMP AGLINMENT CORRECTOR ) and the headlamp washer ( See E3022 HEADLAMP WASHER ).
Junction unit
B001A
B001A
B001C
B001C
B001D
B001E
B001E
B001E
B001F
B001G
B001H
B001H
B001H
B001I
B001I
B001I
B001J
B001J
B001B
B001B
B001B
B001B
B001B
B001B
B001C
B001C
B001C
B001C
B001C
B001C
B001C
B001D
B001D
B001D
B001D
B001D
B001D
B001D
B001E
B001E
B001E
B001G
B001G
B001G
B001H
B001H
B001H
B001H
B001H
B001I
B001I
B001J
B001J
B001B
B001B
B001B
B001C
B001C
B001C
B001D
B001D
B001D
B001H
B001H
B001H
B001I
B001J
Junction unit
B001A
B001A
B001C
B001C
B001D
B001E
B001E
B001E
B001F
B001G
B001H
B001H
B001H
B001I
B001I
B001I
B001J
B001J
B001B
B001B
B001B
B001B
B001B
B001B
B001C
B001C
B001C
B001C
B001C
B001C
B001C
B001D
B001D
B001D
B001D
B001D
B001D
B001D
B001E
B001E
B001E
B001G
B001G
B001G
B001H
B001H
B001H
B001H
B001H
B001I
B001I
B001J
B001J
B001B
B001B
B001B
B001C
B001C
B001C
B001D
B001D
B001D
B001H
B001H
B001H
B001I
B001J
Left front earth
C010A
C010B
C010C
C010C
C010D
C010D
C010A
C010A
C010A
C010A
C010A
C010A
C010A
C010A
Front earth right
C011
C011
C011
C011
C011
C011
C011
C011
C011
C011
Facia earth, driver's side
C015A
C015A
C015B
C015B
C015
C015A
C015A
C015B
C015B
C015
Left headlamp
F010A
F010A
F010B
F010B
F010
F010A
F010A
F010B
F010B
F010
Left headlamp
F010A
F010A
F010B
F010B
F010
F010A
F010A
F010B
F010B
F010
Left headlamp
F010A
F010A
F010B
F010B
F010
F010A
F010A
F010B
F010B
F010
Left headlamp
F010A
F010A
F010B
F010B
F010
F010A
F010A
F010B
F010B
F010
Dipped beam maintenance relay
J045
J045
J045
J045
J045
