SOS function in the relay box.

If no consumers can be used in the NiBi, for example because the central panel is defective, the SOS function in the relay box can be used to bypass consumers in the vehicle.

The relay box can be found in the rear garage of all Niesmann+Bischoff vehicles (see marking 1). If the central panel is defective, any fuse can be inserted into slot four (counting from the left).

Function

• Input for blade fuse to bypass components in the event of a component failure
• Direct power supply from the house battery B2 to the consumers:
  • Light groups "A" and "B"
  • Heating/boiler
  • Water pump 
  • AUX output "RH"
• SOS input deactivates the electronic control of the components

The SOS fuse must only be used in an absolute emergency. Be sure to remove it again when leaving the vehicle and contact a service partner as soon as possible.