GF30.30-P-0002-02R

Distronic (DTR) input and output signals

Shown in model 211
A1 Instrument cluster
A7/3n1 SBC control unit
A89 DTR control unit
B37 Accelerator pedal sensor
E33e4 Left stop lamp
E43e4 Right stop lamp

N3/9 CDI control unit
N3/10 ME-SFI [ME] control unit
N10/1 Driver-side SAM control unit with fuse and relay module (voltage supply terminal 87)
N10/2 Rear SAM control unit with fuse and relay module
N15/3 ETC control unit
N15/6 Automated manual transmission control unit
N47-5 ESP, SPS [PML] and BAS control unit
N49 Steering angle sensor
N72 Lower control panel control unit
N72r1 DTR distance potentiometer
N72s9 DTR switch (distance warning function)
N80 Steering column module
N93 Central gateway control unit
(gateway between databus interior and databus engine)
S9/1 Stop lamp switch
S40 CC [TPM] switch
S40/4 CC switch
X11/4 Data link connector
Y3/8n4 Fully integrated transmission control (VGS) control unit
CAN-B Databus interior
CAN-C Databus engine
SBC CAN Databus Sensotronic Brake Control (between A7/3n1 and N47-5)

CAN participant Information

ESP, SPS and BAS control unit (N47N47-5) The Distronic uses the engine torque and braking torque interface in the traction systems control unit. Thus the traction systems control unit has access to the total data flow. Required braking interventions are undertaken by a vehicle without Sensotronic Brake Control directly by the traction systems control unit.

DTR control unit (A89A89) CAN messages from ESP, SPS and BAS control unit (N47-5):
Left front, right front, left rear and right rear wheel speeds
Steering angle (from 0 to 720°)
Steering angle sign (right/left).

CAN messages to the ESP control unit (N47-5):
Distronic error
Target evaluation (distance to it, relative speed, angle, radar lobe orientation and strength of the reflected radar beams).

Data output takes place over two different interfaces:
a) for models 209, 215, 220
b) for models 211, 219, 230.
Any possibility of confusing the two is excluded through having different connectors on the DTR control unit (A89).

SBC control unit (A7/3n1) CAN messages from ESP, SPS and BAS control unit (N47-5):
Braking torque (reduction or increase).

CAN messages arriving at the ESP, SPS and BAS control unit (N47-5):
Driver braking
Left front, right front, left rear and right rear wheel speeds.

Central gateway control unit (N93N93) CAN messages from the lower control panel control unit (N72) over CAN-B:
DTR switch OFF or ON (proximity warning function)
Specification from the DTR distance potentiometer.

CAN messages arriving at the ESP, SPS and BAS control unit (N47-5) over CAN-C:
DTR switch OFF or ON (proximity warning function)
Specification from the DTR distance potentiometer.

Steering column module (N80N80) CAN messages arriving at the ESP, SPS and BAS control unit (N47-5):
Pushbutton switch for the cruise control system : "OF"
Pushbutton switch for the cruise control system : "SET MEMORY"
Pushbutton switch for the cruise control system : "SET ACCELERATION"
Pushbutton switch for the cruise control system : "SET DELAY"
Operation of variable speed limiter, except
Cruise control pushbutton switch implausible
Steering angle (from 0 to 720°)
Steering angle sign (right/left)
Steering angle sensor defective.

Instrument cluster (A1A1) CAN messages arriving at the ESP, SPS and BAS control unit (N47-5):
mph instead of km/hour (variable speed limitation)
Winter tire maximum speed.

CAN messages from ESP, SPS and BAS control unit (N47-5):
Distronic distance warning lamp
Distronic warning tone
Recognition of a stationary object (e.g. stationary vehicle)
Switch display to Distronic display
Distronic switched on (no vehicle ahead)
Speedometers
Switch Distronic segment display on
Vehicle detected ahead
Distronic switched on (proximity control active)
"LIMIT" in display, except
Distronic error.

Transmission control unit CAN messages arriving at the ESP, SPS and BAS control unit (N47-5):
Actual gear
Target gear
Kick-down
Transmission code
Transmission emergency running mode.

CAN messages from ESP, SPS and BAS control unit (N47-5):
Shift curve offset
Suppression of dynamic full load position
Maintain gear position
Active downshift required.

Engine control unit CAN messages arriving at the ESP, SPS and BAS control unit (N47-5):
Vehicle code
Adjusted engine torque for traction control
Engine speed
Minimum and maximum engine torque, engine drag torque
Kickdown recognition
Deceleration fuel shutoff.

CAN messages from ESP, SPS and BAS control unit (N47-5):
Reduction or increase of the engine nominal torque.

Rear SAM control unit with fuse and relay module (N10/2) and
trailer connection unit control unit (N28/1) CAN messages from ESP, SPS and BAS control unit (N47-5):
Actuate stop lamp
Stop lamp suppression for minimal braking.

CAN participant	Information
ESP, SPS and BAS control unit (N47N47-5)	The Distronic uses the engine torque and braking torque interface in the traction systems control unit. Thus the traction systems control unit has access to the total data flow. Required braking interventions are undertaken by a vehicle without Sensotronic Brake Control directly by the traction systems control unit.
DTR control unit (A89A89)	CAN messages from ESP, SPS and BAS control unit (N47-5): Left front, right front, left rear and right rear wheel speeds Steering angle (from 0 to 720°) Steering angle sign (right/left). CAN messages to the ESP control unit (N47-5): Distronic error Target evaluation (distance to it, relative speed, angle, radar lobe orientation and strength of the reflected radar beams). Data output takes place over two different interfaces: a) for models 209, 215, 220 b) for models 211, 219, 230. Any possibility of confusing the two is excluded through having different connectors on the DTR control unit (A89).
SBC control unit (A7/3n1)	CAN messages from ESP, SPS and BAS control unit (N47-5): Braking torque (reduction or increase). CAN messages arriving at the ESP, SPS and BAS control unit (N47-5): Driver braking Left front, right front, left rear and right rear wheel speeds.
Central gateway control unit (N93N93)	CAN messages from the lower control panel control unit (N72) over CAN-B: DTR switch OFF or ON (proximity warning function) Specification from the DTR distance potentiometer. CAN messages arriving at the ESP, SPS and BAS control unit (N47-5) over CAN-C: DTR switch OFF or ON (proximity warning function) Specification from the DTR distance potentiometer.
Steering column module (N80N80)	CAN messages arriving at the ESP, SPS and BAS control unit (N47-5): Pushbutton switch for the cruise control system : "OF" Pushbutton switch for the cruise control system : "SET MEMORY" Pushbutton switch for the cruise control system : "SET ACCELERATION" Pushbutton switch for the cruise control system : "SET DELAY" Operation of variable speed limiter, except Cruise control pushbutton switch implausible Steering angle (from 0 to 720°) Steering angle sign (right/left) Steering angle sensor defective.
Instrument cluster (A1A1)	CAN messages arriving at the ESP, SPS and BAS control unit (N47-5): mph instead of km/hour (variable speed limitation) Winter tire maximum speed. CAN messages from ESP, SPS and BAS control unit (N47-5): Distronic distance warning lamp Distronic warning tone Recognition of a stationary object (e.g. stationary vehicle) Switch display to Distronic display Distronic switched on (no vehicle ahead) Speedometers Switch Distronic segment display on Vehicle detected ahead Distronic switched on (proximity control active) "LIMIT" in display, except Distronic error.
Transmission control unit	CAN messages arriving at the ESP, SPS and BAS control unit (N47-5): Actual gear Target gear Kick-down Transmission code Transmission emergency running mode. CAN messages from ESP, SPS and BAS control unit (N47-5): Shift curve offset Suppression of dynamic full load position Maintain gear position Active downshift required.
Engine control unit	CAN messages arriving at the ESP, SPS and BAS control unit (N47-5): Vehicle code Adjusted engine torque for traction control Engine speed Minimum and maximum engine torque, engine drag torque Kickdown recognition Deceleration fuel shutoff. CAN messages from ESP, SPS and BAS control unit (N47-5): Reduction or increase of the engine nominal torque.
Rear SAM control unit with fuse and relay module (N10/2) and trailer connection unit control unit (N28/1)	CAN messages from ESP, SPS and BAS control unit (N47-5): Actuate stop lamp Stop lamp suppression for minimal braking.