DISTRONIC electric controller unit, component description - GF30.30-P-3213CE

MODEL 204.0/2 with CODE (233) Distronic Plus with CODE (237) Active Blind Spot Assist with CODE (238) Active Lane Keeping Assist as of model year 2012/YoM 11 facelift 

MODEL 204.3 with CODE (233) Distronic Plus with CODE (237) Active Blind Spot Assist with CODE (238) Active Lane Keeping Assist 

MODEL 204.9 with CODE (233) Distronic Plus with CODE (237) Active Blind Spot Assist with CODE (238) Active Lane Keeping Assist as of model year 2013 /Facelift 12 

View of radiator grille 

Task 

The DISTRONIC controller unit fulfills the following tasks:

• Power supply and actuation of the integral long range radar
• Evaluation of target data for the integral long range radar
• Control of the target evaluation (long range radar)
• Passing on of the object data for vehicle longitudinal regulation to the video and radar sensor system control unit (N62/2 (for code (233) DISTRONIC PLUS)
• Transfer of object data for traffic monitoring to the video and radar sensor system control unit (with code (237) Active blind spot assist)

The control electronics integrated into the DISTRONIC controller unit actuates the long range radar and evaluates the target data. The target data from the long range radar is transferred by the DISTRONIC control unit via the vehicle dynamics CAN (CAN H) to the video and radar sensor system control unit.

Input and output signals 

The following input signals from the DISTRONIC controller unit are received and evaluated and the output signals are issued via the dynamics CAN:

• Input signals 
• Output signals 

Input signals 

• Radar request
• Diagnosis request

Output signals 

• Target data from the radar
• Diagnostic data

Design 

The DISTRONIC control unit contains electronic control circuitry for actuation and evaluation of the long range radar.

Properties of long range radar:

• Detection range of the radar sensor s = 0 to 200 m for a detection angle of ∠ = 18°
• Detection range of the radar sensor s = 0 to 60 m for a detection angle of ∠ = 60°
• 77 GHz radar sensor operating on the pulse Doppler principle for independent measurement of distance and speed

The cover (A) for the DISTRONIC controller unit is designed as a radar transparent brand emblem and has the following tasks:

• Shielding against external effects (such as dirt, ice or insects)
• Ensuring optimal transmission and reception properties of the radar sensor

The DISTRONIC controller unit must be newly adjusted after exchange (e.g. after an accident repair) using the integrated "service adjustment mode".

Wiring diagram for Distronic (DTR) control unit

PE30.30-P-2101-97FAA