Component description for adaptive damping system control unit - GF32.32-P-1010CE

MODEL 204.0/2 with CODE (483) ADVANCED AGILITY package as of Model Year 2009/modification year 08 

MODEL 204.0/2 with CODE (483) ADVANCED AGILITY package as of model year 2012/YoM 11 model refinement package 

MODEL 204.3 with CODE (483) ADVANCED AGILITY package 

Location 

The adaptive damping system control unit is located on the control unit supporting plate in the front passenger footwell.

Task 

The adaptive damping system control unit does the following:

• Reading in of sensors, pickups and signals 
• Evaluation of input factors 
• Actuation of components 

Reading in of sensors, pickups and signals 

The input factors are read in via the following connections:

• Direct line 
• Chassis CAN (CAN E) 

Direct line 

The signals from the following components are read via a direct line:

• Left rear level sensor (B22/7)
• Left front level sensor (B22/8)
• Right front level sensor (B22/9)
• Right rear level sensor (B22/10)
• Left front body acceleration sensor (B24/3)
• Right front body acceleration sensor (B24/4)
• Left rear body lateral acceleration sensor (B24/5)

Chassis CAN 

The following signals are read in over the chassis CAN:

• Provided by instrument cluster (A1):
  • Vehicle speed
• Provided by the CDI control unit (N3/9) (on diesel engines) or the ME-SFI [ME] control unit (N3/10) (on gasoline engines):
  • Circuit 61 terminal status
  • Kickdown status (with transmission 722)
  • Drive variant
• By the front SAM control unit with fuse and relay module (N10/1):
  • Vehicle dynamics status button (N72/1s23)
  • Body variant
• Provided by the Electronic Stability Program control unit (N30/4):
  • Wheel speed
  • Data of yaw rate sensor for lateral and longitudinal acceleration (B24/15) (model 204.0/2 up to 28.2.2011, model 204.9, model 204.0/2 as of 1.3.2011 (with code (233) DISTRONIC PLUS), model 204.3 (with code (233) DISTRONIC PLUS))
  • Service brake status
  • Braking torque
• Provided by steering column tube module control unit (N80):
  • Steering angle
  • Steering angle rate of change

Evaluation of input factors 

The input factors that have been read in are evaluated by the integrated microprocessor and the relevant components are then actuated.

Actuation of components 

The actuation of the components takes place via the following connections:

• Direct line 
• Chassis CAN 

Direct line 

The following components are actuated via a direct line:

• Left front axle damping valve unit (Y51)
• Right front axle damping valve unit (Y52)
• Left rear axle damping valve unit (Y53)
• Right rear axle damping valve unit (Y54)

Chassis CAN 

The following components are actuated via the chassis CAN:

• By the front SAM control unit:
  • Light-emitting diode (LED) in the vehicle dynamics button over the instrument panel LIN (LIN 1)

Wiring diagram for adaptive damping system (ADS) control unit

PE32.32-P-2101-97FAA