Restraint System - Functional Description - E92

• Restraints Systems - Functional Description
  • Crash Safety Module
    • Notes
    • Brief description of components
    • ACSM control unit
    • Airbag control lamp
    • Seat belt warning lamp
    • Fuel pump
    • Seating position sensor (only E88)
    • Notes for Service department
      • General Information
      • Diagnosis instructions
      • Notes on coding/programming
  • Crash-Active Head Restraint
    • Notes
    • Brief component description
    • Note: Deactivating the Crash Active head restraint with the passenger airbag deactivation feature
    • System functions
    • Notes for Service department
  • Ignition Circuit, Safety System (Airbag)
    • Notes
    • Principle procedure for checking an ignition circuit
  • Installation Position, Seat Occupancy Electronics
  • Multiple Restraint System (MRS)
    • Notes
    • Brief component description
    • MRS control unit
    • Front door airbag sensor on driver's side and front door airbag sensor on front passenger side (US version)
    • Airbag sensor in the B-pillar driver's side and front passenger side
    • Front airbag sensor on driver's side and front passenger side (US version)
    • Seat belt buckle switch
    • Front passenger seat occupancy detection via seat-occupancy mat with pressure sensors (European version)
    • Switch for front passenger airbag deactivation (European version)
    • Front passenger seat occupancy detection via seat-occupancy mat with capacitive sensor system (US version)
    • CAS: Car Access System
    • DME or DDE: Digital Motor Electronics and/or Digital Diesel Electronics
    • JBE: Junction Box Electronics
    • FRM: Footwell module
    • Instrument panel: Instrument panel
    • TCU: Telematics control unit
    • Driver's and front passenger airbag
    • Side airbag
    • Knee airbag (US version)
    • Seatbelt tensioners for driver belt and passenger belt
    • Reel tensioners for driver's seat belt and passenger belt (US version)
    • Seat belt force limiter
    • Safety battery terminal
    • Battery cable monitoring wire
    • Airbag control lamp
    • Seat belt warning lamp
    • Indicator lamp for front passenger airbag deactivation
    • Fuel pump
    • System functions
    • Self-test
    • Impact detection
    • Activation the safety system
    • Message to other control units
    • Visual and acoustic seat belt warning for driver belt and passenger belt
    • Notes for Service department
      • General notes
      • Diagnosis instructions
      • Notes on encoding/programming
        • Note: Deactivating the acoustic seat belt warning
        • Note: Coding the MRS control unit
        • National-market version for US
  • Roll-Over Protection System
    • Notes
    • Rollover protection controller
    • Roll bar
    • Trigger the roll bar
  • Seat Belt Extender
    • Belt hand-over
    • Brief description of components
    • Belt hand-over controller
    • Belt lock contact
    • Seat occupancy detection
      • Notes
      • FRM: Footwell Module
      • MRS: Multiple Restraint System
      • CAS: Car Access System
      • JBE: Distribution box in the junction box electronics
    • System functions
    • Function logic for extension of the belt hand-over
    • Function logic for retraction of the belt hand-over
    • Blocking protection, overheating protection
    • Overvoltage detection and undervoltage detection
    • Notes for Service department
      • General information
      • Country-specific versions
        • US version
  • Seat Belts
    • Notes
    • Belt buckle switch
  • Seat Occupation Detection (OC3)
    • Notes
    • Seat occupancy detection
  • Seat-Position Sensor
    • Notes
    • Functional description
    • Structure and inner electrical connection
    • Nominal values
    • Diagnosis instructions
      • Failure of the component