- A Starting - recharging
- B Fuse box and various fuse holders
- C Earths
- D Intermediate couplings
- E On-board instruments and indicators
- F Exterior lights
- G Interior lights
- H Manual electrical controls
- I Switches
- J Relays
- K Sensors and sender units
- L Electro-magnets and solenoid valves
- M Electronic, intermittent and timer devices
- N Electric motors and actuators
- O Resistances and dimmers
- P Various consumers
- Q Safety devices