Engine Control Unit — symbol and terminals
The Engine Control Unit is an educational electrical model used in the Automotive 12 V section of the lab. Engine ECU stub with power, ignition and I/O pins. Place the symbol on the schematic, wire the listed terminals and run the solver to explore its behaviour. Models are simplified for teaching and must not be used to design or service real equipment.
| Terminal | Name | Function |
|---|---|---|
| b+ | Battery + | left |
| gnd | Ground | left |
| ign | Ignition | top |
| out1 | Output 1 | right |
| out2 | Output 2 | right |
| in1 | Input 1 | right |
Standard reference: DIN 72552 / SAE. Symbols are original educational drawings; always verify against the applicable standard and manufacturer documentation.