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Home >> Mercedes Benz >> 2011 >> E 350 BLUETEC (212.024) V6-3.0L DSL Turbo (642.850) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Emergency Contact Module >> Description and Operation >> GF82.95-P-2023FLU Display Of Emergency Call System Status, Function

GF82.95-P-2023FLU Display Of Emergency Call System Status, Function



GF82.95-P-2023FLU Display Of Emergency Call System Status, Function
- with CODE (359) TELE AID emergency call system

Function requirements for display of emergency call system status
^ Emergency call system authorized and operating properly
^ The following vehicle-related services are authorized separately:
- Automatic emergency call
- Manual emergency call
- Breakdown assistance
- MB-Info call
- Vehicle remote door unlock
- Vehicle remote locking

^ The driver is registered and authorized with the service center
^ 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
^ One mobile phone network is available in sufficient strength and quality
^ Triggering of correspondingly listed vehicle-related services
^ Global positioning system (GPS) reception is available and operating properly

Triggering the vehicle-related services listed is described in more detail in the respective separate documents.

Display of emergency call system status, general
The two red light emitting diodes integrated in the emergency call system button (S93/3) are used to indicate the following actions:
- Emergency call system self-test
- Emergency call system ready state
- Automatic or manual emergency call active

Malfunctions in the emergency call system are also indicated on the instrument cluster (A1), depending on the type of malfunction.

The light-emitting diode integrated in the breakdown assistance button (S93/6s2) flashes when breakdown assistance is active. This is also indicated in the instrument cluster and on the Audio/ COMAND display (A40/8).

The light-emitting diode integrated in the MB Info button (S93/6s1) flashes when an MB Info call is active. This is also indicated in the instrument cluster and on the Audio/COMAND display.

With breakdown assistance and an MD Info call, the Remote Destination Feed or Points of Interest (with code (512) COMAND APS with DVD changer) are also displayed in the Audio/COMAND display.
The execution of the vehicle remote door unlock is displayed by a message in the instrument cluster. The red LEDs in the emergency call system button also flash.

The emergency call system status display function consists of the following subfunctions:
^ Function sequence for emergency call system status in non-actuated state
^ Function sequence for emergency call system status for automatic emergency call
^ Function sequence for emergency call system status for manual emergency call
^ Function sequence for emergency call system status for breakdown assistance
^ Function sequence for emergency call system status for MB-Info call
^ Function sequence for emergency call system status for vehicle remote door unlock

Function requirement for emergency call system status in non- actuated state
^ C. 15R On

Function sequence for emergency call system status in nonactuated state
As soon as circuit 15R is activated, the two red light-emitting diodes integrated in the emergency call system button light up during the self-test of the emergency call system control unit for approx. t = 4 s. Actuation is accomplished by the emergency call system control unit via a discrete line.

This signals the self-test and the checking of the following emergency call system statuses:
- Emergency call system control unit power supply
- Functions within the emergency call system control unit (e.g. integrated communication module or memory)
- Communication with the supplemental restraint system control unit (N2/10) and the Electronic Stability Program control unit (N30/4) (without code (233) DISTRONIC PLUS) or the Premium Electronic Stability Program control unit (N30/7) (with code (233) DISTRONIC PLUS).
- Emergency call system button, breakdown assistance function and MB Info button function (e.g. button that is stuck or open)
- Emergency call system antenna function (A2/52)
- Global positioning system antenna splitter function (A2/5) (with code (512) COMAND APS with DVD changer)
- Multifunction antenna function (A28/11)

Circuit 15R status is received by the emergency call system control unit from the electronic ignition lock control unit (N73) via the following route:
- Interior CAN (CAN B)
- Front SAM control unit with fuse and relay module (N10/1)
- Diagnostic CAN (CAN D)

The emergency call system control unit communicates with the supplemental restraint system control unit ("LIFE signal" every t = 500 ms) and the Electronic Stability Program control unit via the following route:
- Chassis CAN (CAN E)
- Front SAM control unit
- Diagnostic CAN

The following components are checked each over a discrete line:
- Supplemental restraint system control unit
- Emergency call system button, breakdown assistance button and MB Info button
- Emergency call system antenna
- Global positioning system antenna splitter (with code (512) COMAND APS with DVD changer)
- Multifunction antenna

If no fault is present, the two red light-emitting diodes integrated in the emergency call system button go out after approx. t = 4 s and thereby signal operational readiness of the emergency call system If a fault is present, the two red light-emitting diodes integrated in the emergency call system button are permanently actuated by the emergency call system control unit via a direct line. Depending on the fault type, a message is displayed in the instrument cluster and filed in the memory of the emergency call system control unit.

The message is displayed in the instrument cluster by the emergency call system control unit in the following way:
- Diagnostic CAN
- Front SAM control unit
- Interior CAN

Function requirements for emergency call system status for automatic emergency call
^ C. 15R On

Function sequence for emergency call system status for automatic emergency call
After triggering an automatic emergency call (crash detection with "crash level") the emergency call system control unit intermittently actuates one of the two red light-emitting diodes integrated in the emergency call system button via a direct line. This is also indicated in the instrument cluster and on the Audio/COMAND display.

This is displayed on the instrument cluster via the following route:
- Diagnostic CAN
- Front SAM control unit
- Interior CAN

The information is displayed on the Audio/COMAND display via the following route:
- Diagnostic CAN
- Front SAM control unit
- Interior CAN
- COMAND controller unit (A40/3)
- Low voltage differential signal (LVDS) line

Function requirements for emergency call system status for manual emergency call
^ Circuit 30g On

Function sequence for emergency call system status for manual emergency call
After triggering a manual emergency call using the emergency call system button, the emergency call system control unit intermittently actuates one of the two red light-emitting diodes integrated in the emergency call system button via a direct line. This is also indicated in the instrument cluster in the Audio/COMAND display. This is displayed on the instrument cluster via the following route:
- Diagnostic CAN
- Front SAM control unit
- Interior CAN

The information is displayed on the Audio/COMAND display via the following route:
- Diagnostic CAN
- Front SAM control unit with fuse and relay module
- Interior CAN
- COMAND controller unit
- LVDS line

Function requirements for emergency call system status for breakdown assistance
^ Circuit 30g On

Function sequence for emergency call system status for breakdown assistance
After triggering breakdown assistance using the breakdown assistance button, the emergency call system control unit intermittently actuates the light-emitting diode integrated in the breakdown assistance button directly via a direct line. This is also indicated in the instrument cluster and on the Audio/COMAND display.

This is displayed on the instrument cluster via the following route:
- Diagnostic CAN
- Front SAM control unit
- Interior CAN

The information is displayed on the Audio/COMAND display via the following route:
- Diagnostic CAN
- Front SAM control unit
- Interior CAN
- COMAND controller unit
- LVDS line

Function requirements for emergency call system status for MB-Info call
^ Circuit 30g On

Function sequence for emergency call system status for MBInfo call
After triggering the MB Info call using the MB Info button, the emergency call system control unit intermittently actuates the light- emitting diode integrated into the MB Info button via a direct line. This is also indicated in the instrument cluster and on the Audio/ COMAND display. This is displayed on the instrument cluster via the following route:
- Diagnostic CAN
- Front SAM control unit
- Interior CAN

The information is displayed on the Audio/COMAND display via the following route:
- Diagnostic CAN
- Front SAM control unit
- Interior CAN
- COMAND controller unit
- LVDS line

Function requirements for emergency call system status for vehicle remote door unlock
^ Circuit 30g On

Function sequence for emergency call system status for vehicle remote door unlock
After the vehicle remote door unlock feature has been triggered by a telephone call to the service center, the emergency call system control unit intermittently actuates the red light-emitting diodes integrated in the emergency call system button via a direct line. Moreover, the emergency call system control unit displays the message on the instrument cluster via the following route:
- Diagnostic CAN
- Front SAM control unit
- Interior CAN


Component Identification:








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