W42.45-1045-79
Overall network of Electronic Stability Program (ESP®) up to 31.01.2017 |
A1 | Instrument cluster (ICUC) control unit | A50 | Lower driver bunk switch module | |
A2 | Central gateway control unit (CGW) | A74 | Instrument panel switch module 4 | |
A3 | Drive control (CPC) control unit | B66 | Steering wheel angle sensor (SAS) | |
A4 | Engine management control unit (MCM) | CAN 2 | Interior CAN | |
A7a | Single signal acquisition and actuation module (SCH) control unit | CAN 3 | Frame CAN | |
A10b | Electronic brake system (EBS) control unit | CAN 4 | Drive train CAN | |
A10d | Anti-lock braking system (ABS) with ESP® control unit | CAN 6a | Front axle brakes CAN | |
A20 | Front axle axle modulator | CAN 6b | Rear axle brakes CAN | |
A21 | Rear axle axle modulator | CAN 6c | Redundant brakes CAN | |
A25 | Electronic Stability Program (ESP®) control unit | CAN 6d | ESP® brakes CAN | |
A25a | Electronic Stability Program (ESP®) control unit | CAN 11 | Trailer CAN (EBS) | |
A44 | Instrument panel switch module 1 | LIN 9 | Switch panel LIN | |
A45 | Instrument panel switch module 2 | X103.7 | Trailer ABS socket (7-pin) | |
A46 | Instrument panel switch module 3 | Z1 | Cab instrument panel CAN bus star point | |
A47 | Switch module special equipment | Z3 | Frame CAN bus star point | |
A48 | Roof switch module 1 | Z4 | Drive CAN bus star point |
W42.45-1091-79
Overall network of Electronic Stability Program (ESP®) as of 01.02.2017 |
A1 | Instrument cluster (ICUC) control unit | A50 | Lower driver bunk switch module | |
A2 | Central gateway control unit (CGW) | A74 | Instrument panel switch module 4 | |
A3 | Drive control (CPC) control unit | B66 | Steering wheel angle sensor (SAS) | |
A4 | Engine management control unit (MCM) | CAN 2 | Interior CAN | |
A7a | Single signal acquisition and actuation module (SCH) control unit | CAN 3 | Frame CAN | |
A10b | Electronic brake system (EBS) control unit | CAN 4 | Drive train CAN | |
A10e | Anti-lock braking system (ABS) with ESP® control unit | CAN 6a | Front axle brakes CAN | |
A20 | Front axle axle modulator | CAN 6b | Rear axle brakes CAN | |
A21 | Rear axle axle modulator | CAN 6d | ESP® brakes CAN | |
A25 | Electronic Stability Program (ESP®) control unit | CAN 11 | Trailer CAN (EBS) | |
A44 | Instrument panel switch module 1 | LIN 9 | Switch panel LIN | |
A45 | Instrument panel switch module 2 | X103.7 | Trailer ABS socket (7-pin) | |
A46 | Instrument panel switch module 3 | Z1 | Cab instrument panel CAN bus star point | |
A47 | Switch module special equipment | Z3 | Frame CAN bus star point | |
A48 | Roof switch module 1 | Z4 | Drive CAN bus star point |
Preconditions
Vehicle speed 20 km/h
The Electronic Stability Program (ESP®) is switched on, the ESP® OFF indicator lamp (A1 h20) and the ESP® indicator lamp (A1 h22) in the instrument cluster (ICUC) control unit (A1) are not lit
Function
The electronic brake system (EBS) (A10b) control unit, the anti-lock brake system (ABS) with ESP® control unit (A10d) (up to 31.01.2017) or the anti-lock brake system (ABS) with ESP® control unit (A10e) (as of 01.02.2017) monitors the course of the towing vehicle and, to detect the vehicle's tendency to overturn, also monitors the lateral acceleration on corners. For this purpose, the Electronic Stability Program (ESP®) control unit (A25, A25a) forwards the signals from the integrated lateral acceleration sensor to the electronic brake system (EBS) control unit (A10b), the anti-lock brake system (ABS) with ESP® control unit (A10d) (up to 31.01.2017) or the anti-lock brake system (ABS) with ESP® control unit (A10e) (as of 01.02.2017).
The electronic brake system (EBS) (A10b) control unit, the anti-lock brake system (ABS) with ESP® control unit (A10d) (up to 31.01.2017) or the anti-lock brake system (ABS) with ESP® control unit (A10e) (as 01.02.2017) triggers reduction of the vehicle speed via the drive control (CPC) control unit (A3) or the engine management (MCM) control unit (A4) as soon as exceeding of the permissible lateral acceleration with increased risk of overturning is detected due to inappropriate cornering speed.
If despite reduced vehicle speed it is not possible to stabilize the vehicle during cornering, the electronic brake system (EBS) control unit (A10b), the anti-lock brake system (ABS) with ESP® control unit (A10d) (up to 31.01.2017) or the anti-lock brake system (ABS) with ESP® control unit (A10e) (as of 01.02.2017) initiates automatic braking of the vehicle.
The ESP® indicator lamp (A1 h22) in the instrument cluster (ICUC) control unit (A1) flashes while the vehicle speed is being reduced or the vehicle is being braked.
Instrument cluster control unit (ICUC), component description | A1 | ||
Drive control (CPC) control unit, component description | A3 | ||
Engine management (MCM) control unit, component description | A4 | ||
Electronic brake control (EBS) control unit, component description | A10b | ||
Anti-lock braking system (ABS) with ESP control unit, component description | On vehicles up to 31.01.2017 | ||
Anti-lock braking system (ABS) with ESP(R) control unit, component description | On vehicles as of 01.02.2017 | ||
Electronic Stability Program (ESP) control unit, component description | A25, A25a |
Referenced documents
- gf0708w4110md Engine management (MCM) control unit, component description
- gf3035w4105na Drive control (CPC) control unit, component description
- gf4225w3135k Electronic brake control (EBS) control unit, component description
- gf4230w4006k Anti-lock braking system (ABS) with ESP control unit, component description
- gf4230w4008na Anti-lock braking system (ABS) with ESP(R) control unit, component description
- gf4245w3005k Electronic Stability Program (ESP(R)) control unit, component description
- gf5430w6001na Instrument cluster control unit (ICUC), component description