Auto Diagnostic Scanner And Adaptive Brake (ABR)

ABR assists the driver in dangerous situations which occur suddenly and thus serves active safety.
Contains the following functions:
ABS prevents the wheels locking when braking and as a result maintains the steer-ability and directional stability and road adhesion during the vehicle deceleration.
ASR prevents the drive wheels from spinning while driving. It also causes improved directional stability and road adhesion with increased traction potential over the entire vehicle speed range.
ESP prevents breakaway when the vehicle over steers or under steers. It ensures (within the framework of physical limits) that the vehicle does not deviate from the course specified by the driver. Brake forces are produced selectively at the individual wheels to correct any deviations. Furthermore, torque is reduced to increase the directional stability and road adhesion.
The ESP control unit (N47-5) evaluates the data from the following components for recording the current driving situation:
· (B24/15) Yaw rate and lateral acceleration sensor
· (L6/1) Left front rpm sensor
· (L6/2) Right front rpm sensor
· (L6/3) Left rear rpm sensor
· (L6/4) Right rear rpm sensor
· (N49) Steering angle sensor
BAS detects emergency braking situation by means of a rapid brake pedal operation and increases the brake pressure if necessary.
EBV [electronic brake force distribution] assists the driver in the partial braking range. It prevents over braking of the rear axle and increases the vehicle stability in the curve, the pressure at the rear wheel on the inside of the curve being reduced or the pressure at the front wheel on the outside of the curve being increased if necessary.
1. HOLD
Assists the driver when starting off on a hill or during waiting times in traffic. HOLD is activated by briskly continuing to depress the brake pedal when stationary. The adjusted brake pressure is held until the driver quickly depresses the brake pedal again or starts off. 
2. Pre-charging
It builds up the brake pressure when the accelerator pedal is released suddenly, in order to reduce the response time during braking which may follow.
3. Dry braking
It assists the performance of the brake in the wet. By applying the brake linings in cycles the water film is wiped off the brake disk. This improves the response time of the brake. 
4. Adaptive stop lamp flashing (ECE only)
In order to display to the following traffic that the driver has performed a panic braking, in such situations the stop lamp is actuated flashing and when the vehicle is stationary the hazard warning system is switched on automatically.
The list of ECUs and sensors and actuators in Mercedes Benz Chassis 219, as shown is the first figure:
· A1 Instrument cluster
· B24/15 Yaw rate and lateral acceleration sensor
· B37 Accelerator pedal sensor
· H2 Fanfare horns (model 211) Left fanfare horn (model 219)
· H2/1 Right fanfare horn
· L6/1 Left front rpm sensor
· L6/2 Right front rpm sensor
· L6/3 Left rear rpm sensor
· L6/4 Right rear rpm sensor
· N3/9 CDI control unit (on diesel engines)
· N3/10 ME-SFI [ME] control unit (on gasoline engines)
· N10/1 Driver-side SAM control unit with fuse and relay module
· N10/2 Rear SAM control unit with fuse and relay module
· N10/11 Passenger-side SAM control unit
· N15/3 ETC control unit (with transmission 722.6)
· N15/5 Electronic selector lever module control unit (with transmission 722)
· N47-5 ESP control unit
· N49 Steering angle sensor
· N72/1 Upper control panel control unit
· N72/1s1 ESP OFF switch
· N73 EIS [EZS] control unit
· N80 Steering column module
· N93 Central gateway control unit
· S9/1 Stop lamp switch
· S12 Parking brake indicator switch
· S17/3 Left front door contact switch
· S62 EDW hood switch
· Y3/8n4 fully integrated transmission control (VGS) control unit (with transmission 722.9)
This is the list of ECUs and sensors and actuators as shown in the schematic diagram:
· A1 Instrument cluster
· B24/15 Yaw rate and lateral acceleration sensor
· B37 Accelerator pedal sensor
· H2 Fanfare horns (model 211.0/2) Left fanfare horn (model 219.3)
· H2/1 Right fanfare horn
· L6/1 Left front rpm sensor
· L6/2 Right front rpm sensor
· L6/3 Left rear rpm sensor
· L6/4 Right rear rpm sensor
· N3/9 CDI control unit (on diesel engines)
· N3/10 ME-SFI [ME] control unit (on gasoline engines)
· N10/1 Driver-side SAM control unit with fuse and relay module
· N10/2 Rear SAM control unit with fuse and relay module
· N10/11 Passenger-side SAM control unit
· N15/3 ETC control unit (with transmission 722.6)
· N15/5 Electronic selector lever module control unit (with transmission 722)
· N47-5 ESP control unit
· N49 Steering angle sensor
· N72/1 Upper control panel control unit
· N72/1s1 ESP OFF switch
· N73 EIS [EZS] control unit
· N80 Steering column module
· N93 Central gateway control unit
· S9/1 Stop lamp switch
· S12 Parking brake indicator switch
· S17/3 Left front door contact switch
· S62 EDW hood switch
· Y3/8n4 fully integrated transmission control (VGS) control unit (with transmission 722.9)
· CAN B Controller area network bus, class B (interior compartment) (CAN B)
· CAN-C Controller Area Network Bus Class C (engine compartment) (CAN-C)
· CAN-S CAN sensor
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