List of automotive electrical assemblies
In order to achieve a better assignment of assemblies , devices or circuit symbols in circuit diagrams , identification letters and numerical numbers according to DIN 40719, Part 2 are used. The component is marked with the appropriate letter and a consecutive number. In the legend for the circuit diagram, an exact assignment can now be made using the identifier. This is a list for a better understanding of the code letters in vehicle wiring diagrams.
- A - control unit
- B - converter from non-electrical quantities to electrical quantities (e.g. temperature sensors)
- C - capacitors
- D - binary elements, memory (e.g. on-board computer)
- E - Miscellaneous (heater, air conditioning, lamp, spark plug)
- F - fuse
- G - generators , car battery , power supply
- H - signaling devices (signal lights, control lights)
- K - relay
- L - inductance (for example coil)
- M engines
- N - regulator, amplifier
- P - measuring devices, test equipment
- R - resistors
- S - switch, button
- T - transformers
- U - modulators (e.g. direct current converters)
- V - semiconductors , for example diodes , transistors or (historically) electron tubes
- W - transmission path, line, antenna
- X - terminals, plugs, plug connections
- Y - electrically operated mechanical devices (e.g. injection solenoid valve)
Specialist literature
Reference books
- Dipl.-Ing. Jürgen Kasedorf / Richard Koch, service primer for vehicle electrics, Vogel Buchverlag, ISBN 3-8023-1881-1
Technical brochures
- Bosch technical instruction for circuit symbols and circuit diagrams for vehicle electrics, Robert Bosch GmbH Stuttgart, VDT-UBE 001/10