Energy diagnosis: Terminal control

For more information; see general functional description of the power supply:
Function selection -> Complete vehicle -> Body -> Power supply

Brief description

The power supply for the consumer units is delivered via various terminals. The terminal control is distributed across various control units:

• Terminal 30: Continuous +
  Terminal 30 is routed from the battery terminal via the safety battery terminal to the front distribution box. As soon as the battery is connected to the terminals, terminal 30 is live.
  Control units supplied by terminal 30:
  

• Terminal 30g: Switched continuous +
  Terminal 30g is controlled by the CAS. When the vehicle is wakened by an operation of the user, terminal 30g is switched on. Terminal 30g is switched off automatically after a codable after-run time (e.g. 30 minutes).
  As in the case of terminal 15, the CAS activates a relay in the distribution box across a semiconductor switch.
  Control units supplied by terminal 30g:
  

• Terminal 30g-f: Cutoff in the event of faults
  Terminal 30g-f is a terminal 30 that is only switched off if faults are detected. The JBE controls terminal 30g-f via a bistable relay in the distribution box. The bistable relay can be switched off and on. As a rule, the bi-stable relay is always switched on.
  The relay terminal 30g-f is only fitted with High equipment, e.g. when the Car Communication Computer (CCC) was ordered.
  Control units supplied by terminal 30g-f:
  

• Terminal 15:
  The CAS controls terminal 15 depending on actuation of the start-stop button (with remote control inserted or identification sensor in the slot).
  Terminal 15 is activated in the CAS via semiconductor switches. A relay in the distribution box is activated via the output of a semiconductor switch.
  Control units supplied by terminal 15:
  PDC Park Distance Control
  DSC sensor
  
• Terminal R:
  The CAS controls terminal R.