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Display of TELE AID status, function - GF82.95-P-2015CWU

MODEL 204.0 with CODE (359) TELE AID emergency call system 

Function requirements for Telematic Alarm Identification on Demand (emergency call system) (TELE AID) system status 

IMPORTANT The triggering of correspondingly listed vehicle-related services is described in greater detail in each respective subfunction.

IMPORTANT Depending on equipment installed one of the following control units is installed:

The function description uses the term "master control unit".

General 

The two red light emitting diodes (LED) integrated into the emergency call system button (S93/3) are used to indicate the following actions:

IMPORTANT Faults in the TELE AID system are also displayed in the instrument cluster (A1) depending on the fault type.

The LED integrated into the breakdown assistance button (S93/6s2) flashes when breakdown assistance is active.

The LED integrated into the MB-Info button (S93/6s1) flashes when an MB-Info call is active.

The vehicle remote door unlock is executed by means of a message in the instrument cluster.

In the event of breakdown assistance and an MB-Info call, additional services, e.g. Freetext (transmission of text messages), are also shown on the Audio/COMAND display (A40/8). This is sent from the emergency call system control unit to the Audio/COMAND display in the following way:

The TELE AID status display function is made up of the following subfunctions:

TELE AID system status in quiescent state function sequence 

As soon as the "circuit 15R ON" status is achieved the two red LEDs integrated into the emergency call system button light up during the self-test of the emergency call system control unit for t = 4 s. Actuation takes place from the emergency call system control unit via a discrete line.

This indicates a self-test and testing of the following TELE AID system states: 

The "circuit 15R ON" status is received by the emergency call system control unit from the electronic ignition lock control unit (N73) in the following way:

Communication from the emergency call system control unit with the SRS control unit ("LIFE signal" every 500 ms) and the ESP control unit takes place in the following way:

The following components are each tested via a discrete line:

If a fault is not present, the two red LEDs integrated into the emergency call system button go out after t = 4 s and thereby signal TELE AID system operational readiness.

If a fault is present, the two red LEDs integrated into the emergency call system button are permanently actuated by the emergency call system control unit via a discrete 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:

TELE AID system status function sequence for automatic TELE AID emergency call 

After triggering an automatic TELE AID emergency call (crash recognition incl. crash level) the emergency call system control unit intermittently (partially off) actuates one of the two red LEDs integrated into the emergency call system button via a discrete line. One of the two LEDs flashes throughout the actuation period.

TELE AID system status function sequence for manual TELE AID emergency call (E-call) 

After triggering a manual TELE AID emergency call using the emergency call system button, the emergency call system control unit intermittently (partially off) actuates one of the two red LEDs integrated into the emergency call system button via a discrete line. One of the two LEDs flashes throughout the actuation period.

TELE AID system status for breakdown assistance function sequence 

After triggering breakdown assistance using the breakdown assistance button, the emergency call system control unit intermittently (partially off) actuates the LED integrated into the breakdown assistance button directly via a discrete line. The LED flashes during the actuation period.

TELE AID system status for MB-Info call function sequence 

After triggering the MB-Info call using the MB-Info button, the emergency call system control unit intermittently (partially off) actuates the LED integrated into the MB-Info button via a discrete line. The LED flashes during the actuation period.

TELE AID system status for vehicle remote door unlock function sequence 

After triggering the vehicle remote door unlock after a phone call to the CAC, the emergency call system control unit displays the message as follows in the instrument cluster:

State displays of TELE AID system status 

Fig 1: TELE AID System Status Graph
G07532340Courtesy of MERCEDES-BENZ USA
REFER TO SYSTEM WIRING DIAGRAMS Electrical function diagram for TELEAID status indication With code (512) COMAND APS with DVD changer PE82.95-P-2059-99FAA
  MB-Info and breakdown assistance button group, component description S93/6s1, S93/6s2 GF82.95-P-3211CWU 
  Emergency call system control unit, component description N123/4 GF82.95-P-3212CWU 
  Emergency call system button, component description S93/3 GF82.95-P-4400CWU 
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