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Home >> Porsche >> 2021 >> 911 Targa 4 >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> 91 Radio, On-Board Computer Park Assist -- 992 - 911 CARRERA (992) >> WM, 919655 Replacing Emergency Call System Era GLONASS Control Unit >> Replacing Emergency Call System Era GLONASS Control Unit

Replacing Emergency Call System Era GLONASS Control Unit

NOTE: Voltage drop
  • Irreparable damage to control unit 
  • Damage to control unit 
  • Fault entries in the control unit 
  • Control unit programming/coding is aborted 
  • Malfunctions in the control unit, even during programming/coding 

    → Switch off ignition before disconnecting the control unit.

    → Make sure that the power supply is not interrupted during programming/coding.

    → Connect the battery charger with at least > current 90 A  to the vehicle battery.

Information 

Make sure that you have sufficient mobile phone and satellite reception.

Information 

The PIWIS Tester  instructions take precedence since the description may be different with later Tester releases.

The procedure described here has been structured in general terms; different text or additions may appear in the PIWIS Tester  .

The ERA GLONASS control unit is integrated in the control unit for external communication.

  1. Connect the Tester to the vehicle and start it. Switch on ignition.
  2. The emergency call button indicator light in the roof console must be permanently green  .
    G15535230Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Emergency call button

  3. Place original remote control (hand-held transmitter) in emergency start tray.
    G15535231Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Emergency start tray

  4. Select the vehicle type if required.
  5. Select the External communication  control unit in the overview  . Press F12 to continue.

    The message "Create Vehicle Analysis Log (VAL)?" appears. Press F11 to continue.

  6. Actual values/input signals  must now be selected.
  7. ERA GLONASS  must be selected. Press F12 to continue.
  8. Internal SIM card, identification: ICCID  must be selected. Press F12 to continue.
  9. Take note of the ICCID and pass it on to the customer.
  10. Activate ERA GLONASS emergency call system.

    > 919625 COMMISSIONING/ACTIVATING CONTROL UNIT FOR EMERGENCY CALL SYSTEM