BMW 5 Series Owners & Service Manuals

BMW 5 Series: Horn

System wiring diagram

System wiring diagram
Horns

  1. Horn, left
  2. Horn, right
  3. Relay in the Body Domain Controller
  4. Body Domain Controller (BDC)
  5. Steering column switch cluster (SZL)

Signal path of horn:

  • When the horn is pressed the signal is received by the steering column switch cluster (SZL).
  • The SZL sends the information via the LIN bus to the Body Domain Controller.
  • The Body Domain Controller evaluates the information and activates the relay for the horn.

    READ NEXT:

     Driver Assistance Systems

     Introduction

    The most versatile range of Driver Assistance Systems ever for a BMW model was launched with the introduction of the G12. Numerous innovative systems have been introduced and have opened the way for

     G30 Bus Overview

    G30 Bus overview ACC - Active Cruise Control ACSM - Advanced Crash Safety Module AMPT - Top HiFi amplifier ASD - Active Sound Design BDC - Body Domain Controller CON - Controller DME - Digital Motor

    SEE MORE:

     Hands-free system

    General information Calls that are being made on the hands-free system can be continued on the mobile phone and vice versa. From the mobile phone to the hands-free system Calls that were begun outside of the Bluetooth range of the vehicle can be continued on the hands-free system with standby state

     Front axle

    Double-wishbone front axle in the G30 Support bearing Wishbone, lower Steering box Cross member Universal joint of steering shaft to steering gear Cast side section Strut Service opening Rear stiffening label Steering shaft Universal joint of steering shaft to steering column Triangle

    © 2019-2025 Copyright www.bmw5g30.com