Description of components in ESP control unit - GF42.45-P-5118GZ
MODEL 164 up to Model Year 08
The ESP control unit (N47-5) is installed on the hydraulic unit (A7/3).
Carries out all brake control functions of Antilock Brake System (ABS), Acceleration Slip Regulation (ASR) and Electronic Stability Program (ESP). Data exchange with the engine/transmission control units takes place via the Controller Area Network bus class C (engine compartment) (CAN-C) for ASR and ESP.
- Influence the engine/transmission management in the case of an ESP control
- Contains the complete Brake Assist (BAS) control unit function
- Supplies other systems with the vehicle speed signal and wheel rpm signal (direct or via CAN-C).
- Supplies the instrument cluster (A1) with the signals for the ABS indicator lamp (A1e17), the ESP warning lamp (A1e41) and the multifunction display (A1p13) via CAN-C
- On vehicles with CODE (213) Speed-sensitive power steering the ESP control unit also contains the electronics and control logic necessary for this
- The ESP control unit contains the software for CODE (477) tire pressure loss warning. It recognizes pressure loss by comparing the wheel speeds and displays this in the multifunction display (A1p13)