Illustrated on model 218.3 |
A7/3 | Traction system hydraulic unit |
N30/4 | Electronic Stability Program control unit (except CODE 233 (DISTRONIC PLUS), except CODE 990 (AMG vehicles)) |
N30/7 | Premium Electronic Stability Program control unit (with CODE 233 (DISTRONIC PLUS) or with CODE 990 (AMG vehicles)) |
P42.45-2716-04
Location
The Electronic Stability Program control unit (except CODE 233 (DISTRONIC PLUS), except CODE 990 (AMG vehicles)) or the Premium Electronic Stability Program control unit (with CODE 233 (DISTRONIC PLUS) or with CODE 990 (AMG vehicles)) is located at the left front in the engine compartment on the traction system hydraulic unit.
Task
The Electronic Stability Program control unit (except CODE 233 (DISTRONIC PLUS), except CODE 990 (AMG vehicles)) or the Premium Electronic Stability Program control unit (with CODE 233 (DISTRONIC PLUS) or with CODE 990 (AMG vehicles)) contains the control elements for the following systems:
Electronic Stability Program (ESP®)
Electronic brake force distribution (EBD)
Anti-lock braking system (ABS)
Acceleration slip regulation (ASR)
Brake Assist (BAS)
Electronic Traction System (ETS)
Tire pressure loss warning (RDW) (except CODE 475 (Tire pressure monitor (premium)))
PRE-SAFE® system
Automatic lane recognition (ALR [AFE]) (with CODE 476 (Automatic lane recognition))
Standstill coordinator (SSK)
Variable speed limiter (except CODE 233 (DISTRONIC PLUS), except CODE 990 (AMG vehicles), except CODE 494 (USA version) and except CODE 460 (Canada version))
Cruise control (except CODE 233 (DISTRONIC PLUS), except CODE 990 (AMG vehicles))
HOLD function
Precharging, depending on accelerator pedal actuation
Precharging, depending on lateral acceleration
Dry braking
Switch off ASR and ESP®
Adaptive brake lights, flashing (except with CODE 494 (USA version))
Hill Start Assist
TYP 218
ab Modell-J. 2014
mit CODE 233 (DISTRONIC PLUS)
mit CODE 990 (AMG-Fahrzeuge)
On vehicles with CODE 233 (DISTRONIC PLUS) or with CODE 990 (AMG vehicles), the variable speed limiter and the cruise control are integrated in the radar sensors control unit (N62/1).
The Electronic Stability Program control unit (except CODE 233 (DISTRONIC PLUS), except CODE 990 (AMG vehicles)) or the Premium Electronic Stability Program control unit (with CODE 233 (DISTRONIC PLUS) or with CODE 990 (AMG vehicles)) has the following tasks:
Reading in of sensors and signals
Evaluation of input factors
Actuation of components
Reading in of sensors and signals
The input factors are read in via the following connections:
Direct line
Chassis CAN 1 (CAN E1)
Vehicle dynamics CAN (CAN H)
Direct line
The following signals are read in via direct lines:
Terminal 30
Circuit 31
Brake lights switch (S9/1)
Brake vacuum sensor (B64/1)
Left front axle rpm sensor (L6/1)
Right front axle rpm sensor (L6/2)
Left rear axle rpm sensor (L6/3)
Right rear axle rpm sensor (L6/4)
Chassis CAN 1
The Electronic Stability Program control unit (except CODE 233 (DISTRONIC PLUS), except CODE 990 (AMG vehicles)) or the Premium Electronic Stability Program control unit (with CODE 233 (DISTRONIC PLUS)) or with CODE 990 (AMG vehicles)) is a subscriber on chassis CAN 1. It communicates with, for example, the following control unit:
CDI control unit (N3/9) (with diesel engine) or ME-SFI [ME] control unit (N3/10) (with gasoline engine)
Front SAM control unit with fuse and relay module (N10/1)
Steering column tube module control unit (N80)
Fully integrated transmission control unit (Y3/8n4)
Instrument cluster (A1)
Rear SAM control unit with fuse and relay module (N10/2)
Parking system control unit (N62) (with CODE 235 (Active Parking Assist))
Vehicle dynamics CAN
Signals are read in via the chassis CAN from the following components:
Yaw rate sensor for lateral and longitudinal acceleration (B24/15)
Evaluation of input factors
The input factors that have been read in are evaluated by the integrated microprocessor and the affected components are then actuated.
Actuation of components
Components are actuated with the following line:
Direct line
Direct line
The following components are actuated via direct lines:
Rear SAM control unit with fuse and relay module (brake light actuation)
Yaw rate sensor for lateral and longitudinal acceleration (power supply)
Traction system hydraulic unit (A7/3)
Variants
ADAPTIVE BRAKE is available in 2 variants:
ABR standard system (except CODE 233 (DISTRONIC PLUS), except CODE 990 (AMG vehicles))
ABR premium system (with CODE 233 (DISTRONIC PLUS) or with CODE 990 (AMG vehicles))
Technical data |
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Electronic Stability Program control unit (except CODE 233 (DISTRONIC PLUS), except CODE 990 (AMG vehicles)) or Premium Electronic Stability Program control unit (with CODE 233 (DISTRONIC PLUS) or with CODE 990 (AMG vehicles)) | ||||
Voltage supply | V | 13.8 | – | |
Voltage limits | V |
| Lower limits | |
| Upper limits | |||
Power consumption | mA | 500 | Standby | |
A | 40 | Action | ||
μA | 300 | No-load current | ||
Reverse polarity protection | – | – | – | Yes |
Special features | – | – | – | All relevant parameters for changing over functions are coded per software calibration number (SCN). |
Flash capability/coding capability | – | – | – | Yes |
Yaw rate, lateral and longitudinal acceleration sensor | ||||
Model | – | – | – | Sensor cluster |
Voltage supply | – | – | – | Terminal 30 |
Left front axle rpm sensor | ||||
Model | – | – | – | Digital sensor |
Voltage supply | – | – | – | Terminal 30 |
Frequency | Hz | 0...5000 | – | – |
Stop lamp switch | ||||
Model | – | – | – | Digital sensor |
Voltage supply | – | – | – | Circuit15R |