| Component code | Name | Assembly reference |
|---|
| B1 | Junction unit | 5505A |
| B2 | Dashboard junction unit (CPL) | - |
| B2 | Junction unit | - |
| B2 | Junction unit | 5505A |
| B5 | MAXI FUSE box | - |
| B99 | Battery fuses junction unit (CBA) | 5530B |
| C10 | Front left earth | - |
| C40 | Chassis earth for I.E system. | - |
| C40 | Engine earth | 5505A |
| D1 | Front-dashboard coupling | - |
| D4 | Engine front connection | - |
| D4 | Front-engine prewiring coupling | - |
| D6 | Rear - front coupling | - |
| D19 | Dashboard / battery coupling | - |
| D23 | Dashboard-i.e coupling. | - |
| E50 | Instrument panel | - |
| E50 | Instrument panel | 5560B |
| H1 | Ignition switch | 5520A |
| M10 | Engine management control unit | - |
| M10 | Engine management control unit | 1056B |
| M20 | CODE control unit | 5580E |
| R10 | Multiple tester connection | - |
