Electronic Stability Program (ESP(R)) Control Unit, Component Description - GF42.45-S-3005A
Model 447
With Code XM7 (MOPF II)
The numbers on the pins indicate the PIN numbering of the slots.
Electronic Stability Program (ESP(R)) control unit, shown on model 447.8
Overview
This document contains information on:
- General
- Function
- Ground connection
- Power supply
General
The Electronic Stability Program (ESP) control unit (N30/4) is installed on the driver's side on the firewall in the engine compartment.
Function
The Electronic Stability Program (ESP) control unit (N30/4) provides standard functions, as well as equipment-specific functions, to improve driving safety.
These include, for example:
- Electronic Stability Program (ESP®)
- Traction control with wheel speed monitoring
- Downhill and starting-off aid
- Sensor values for processing in other control units
The following input and output parameters are read in or output via direct lines by the Electronic Stability Program (ESP) control unit (N30/4):
| Input parameters via a direct line | Output parameters via a direct line |
|---|---|
| Circuit 15 | - |
| Circuit 30 | - |
| Circuit 30t | - |
| Circuit 31 | - |
| - | Actuation of left electric parking brake actuator motor (M76/1) |
| - | Ground connection of left electric parking brake actuator motor (M76/1) |
| - | Actuation of right electric parking brake actuator motor (M76/2) |
| - | Ground connection of right electric parking brake actuator motor (M76/2) |
| Signal of illumination switch (S1) | - |
| - | Power supply of pedal angle sensor (B37/1) |
| - | Ground connection of pedal angle sensor (B37/1) |
| Signal of pedal angle sensor (B37/1) | - |
| - | Brake light switch power supply (S9/3) |
| Signal of brake light switch (S9/3) | - |
| - | Power supply for 5 V brake vacuum sensor (B150, B150/3) |
| - | Ground connection of brake vacuum sensor (B150, B150/3) |
| Signal of brake vacuum sensor (B150, B150/3) | - |
| - | Signal of brake pedal to signal acquisition and actuation module (SAM) control unit (N10/1) |
| - | Power supply of left front axle rotational speed sensor (L6/1) |
| Signal of left front axle rotational speed sensor (L6/1) | - |
| - | Power supply of right front axle rotational speed sensor (L6/2) |
| Signal of right front axle rotational speed sensor (L6/2) | - |
| - | Power supply of left rear axle rotational speed sensor (L6/3) |
| Signal of left rear axle rotational speed sensor (L6/3) | - |
| - | Power supply of right rear axle rotational speed sensor (L6/4) |
| Signal of right rear axle rotational speed sensor (L6/4) | - |
Input and output parameters for the following control units are sent or received by the Electronic Stability Program (ESP) control unit (N30/4) via the vehicle dynamics CAN (CAN H):
| Input and output parameters via vehicle dynamics CAN (CAN H) | Additional information |
|---|---|
| Supplemental Restraint System (SRS) control unit (N2/5) | - |
Input and output parameters for the following control units are sent or received by the Electronic Stability Program (ESP) control unit (N30/4) via the suspension FlexRay (Flex E):
| Input and output parameters via suspension FlexRay (Flex E) | Additional information |
|---|---|
| Multifunction camera (MFK) control unit (B84/8) | - |
| Active Brake Assist controller unit (B92) | With code BA3 (Active Brake Assist) |
| Active Distance Assist DISTRONIC electric controller unit (B92/1) | With code ET4 (Active Distance Assist DISTRONIC) |
| AIRMATIC control unit (N51/3) | With code CA4 (AIRMATIC) |
| Parking system control unit (N62/3) | With code EZ5 (Active Parking Assist with reversing camera) With code EZ6 (Parking Package with 360° camera) With code JB6 (Parking Package with 360° camera) With code JB7 (Parking Package with reversing camera) |
| Electric power steering (EPS [ES]) control unit (N68) | - |
| Electronic ignition lock (EIL [EZS]) control unit (N73/8) | - |
| Steering column tube module (SCTM [MRM]) control unit (N80) | - |
| Drivetrain control unit (N127) | - |
Ground connection
The ground connection for "Circuit 31" is implemented via the ground point of the Electronic Stability Program (W70).
Power supply
The power supply for "Circuit 15" is implemented via the engine compartment fuse and relay module (K40/10).
The power supply for "Circuit 30" is implemented via the pre-fuse box (F1).
The power supply for "Circuit 30t" is implemented via the firewall fuse and relay module (K40/11).