AB  Demolition AV  Breakdown valve BLS  Brake light switch BR  Brake controller CAN  Controller Area Network DBR  Constant braking relay DF  RPM sensor DKR  Throttle valve reduction (engine load reduction) DKV  Throttle valve command (engine load parameter) DSV  Pressure control valve ECU  Control unit EEC  Electronic Engine Control EEPROM  Electrically Erasable Programmable Read Only Memory EGAS  electronic accelerator EHAB  electrohydraulic cutout ERC  Electronic Retarder Control ETC  Electronic Traction Control EV  Maintenance valve FC  Fault code FM  Vehicle management GND  Ground (Earth) HP  High Pressure (High pressure switch) INA  Information indicators (yellow ASR control lights) IRM  Individual control (modified) KS  Short circuit LP  Low Pressure (Low pressure switch) MR  Engine control system MS  Earth terminal MV  Solenoid OL  Open load (not in use) PMV  Pneumatic solenoid valve PS  Plus terminal PWM  Pulse width modulation ROM  Read Only Memory SG  Control unit SIBA  Safety module. SIBA and microcontroller monitor one another SL  Select low Ubat  Battery plus WD  "Watch dog"