Emergency call system, function - GF82.95-P-0004GQU
MODEL 164.1 with CODE (359) TELE AID emergency call system as of model year 2009/Modification Year 2008 model refinement package
MODEL 164.8 with CODE (359) TELE AID emergency call system as of model year 2009/Modification Year 2008
MODEL 251.0 with CODE (359) TELE AID emergency call system as of model year 2009/Modification Year 2008
MODEL 251.1 with CODE (359) TELE AID emergency call system as of model year 2009/Modification Year 2008
Function requirements
- Circuit 30 or Circuit 15R
- Emergency call system authorized and operating properly
- Each vehicle-related service is authorized separately
- An emergency call system control unit (N123/4) communication module authorized for the corresponding vehicle-related service is configured ex-factory with the telephone number of the corresponding service provider
- The customer is registered and authorized at the service center
- One mobile phone network is available in sufficient strength and quality
Self-test
After activation of circuit 15R, the emergency call system control unit performs a self-test (for approx. t = 3.5 s). If the self-test is successful, the emergency call system is then ready for operation.
In the event of a fault or if authorization has not been provided, a fault message is displayed on the instrument cluster (A1), depending on the type of fault and the two red light-emitting diodes (LED) in the SOS pushbutton switch (S93/3) are actuated continuously. Depending on the fault type, the fault is also stored in the emergency call system control unit's memory.
General
The emergency call system control unit enables the following vehicle-related services to be realized:
- Authorization
- Emergency call (E-Call) manual or automatic, including police emergency call number "911"
- MB-Info call
- Breakdown assistance (Roadside Assistance)
- Vehicle tracking
- Vehicle remote door unlock
The emergency call system control unit is not used for regular telephone calls.
The emergency call system function consists of the following subfunctions, which are described in separate service information:
- Voice connection between vehicle and service center
- MB information call
- Display of emergency call system status
- Manual or automatic emergency call
- Data from restrain systems control unit
- Vehicle remote unlocking
- Vehicle tracking
- Roadside assistance
- Position finding
- Telephone antenna selection
Prioritization
All listed vehicle-related services run automatically in the emergency call system control unit. The emergency call system control unit has a priority management feature to ensure that it does not have to manage several vehicle-related services at the same time. This determines the point at which a vehicle-related service is to be activated and which vehicle-related service has a higher priority. Depending on which vehicle-related service is to be activated, the emergency call system control unit releases resources in accordance with the priority list and activates the vehicle-related service or refuses activation because a vehicle-related service with a higher priority is already active. Automatically completing an emergency call has the highest priority.
| Priority | Service |
|---|---|
| 1 | Automatic alarm call |
| 2 | Manual emergency call |
| 3 | Vehicle tracking |
| 4 | Roadside assistance |
| 5 | MB information call |
| 6 | Authorization |
| 7 | Vehicle remote unlocking |
| Emergency call system, location of components | GF82.95-P-0004-01GQU | ||
| Emergency call system block diagram | GF82.95-P-0004-02GQU | ||
| Voice connection between vehicle and service center, function | GF82.95-P-2022GQU | ||
| MB information, function | GF82.95-P-2010GQU | ||
| Display of emergency call system status, function | GF82.95-P-2023GQU | ||
| Manual or automatic emergency call, function | GF82.95-P-2024GQU | ||
| Restraint system control unit data, function | GF82.95-P-3005GQU | ||
| Vehicle remote door unlock, function | GF82.95-P-2018GQU | ||
| Vehicle tracking, function | GF82.95-P-2021GQU | ||
| Breakdown assistance, function | GF82.95-P-2020GQU | ||
| Position finding, function | GF82.95-P-3000GQU | ||
| Selecting telephone antenna, function | GF82.95-P-3001GQU |