Replacing Communication Control Unit (With Emergency Call System Era Glonass)
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
→ 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 to the vehicle battery.
Information
Cross-installation of the external communication control unit with the external communication control unit from another vehicle is not permitted and can result in damage to the software.
Information
Make sure that you have sufficient mobile phone and satellite reception.
Information
On vehicles in the Eurasian Customs Union, the optional emergency call system ERA GLONASS is integrated in the control unit for external communication.
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The terms "Ignition on" and "Starting engine" are re-defined for fully electric vehicles (battery electric vehicles - BEV).
Establishing operational readiness/Ignition on:
Prerequisites for establishing operational readiness: High-voltage battery is sufficiently charged, remove vehicle charging cable from the vehicle charge port, put driver's key in the emergency start tray.
Establishing operational readiness automatically: Get into the vehicle and close the driver's door. The driver's key is recognized inside the vehicle. Operational readiness is established.
Establishing operational readiness manually: Press Start/Stop switch. The driver's key is recognized inside the vehicle. Operational readiness is established.
Establishing operational readiness/Starting engine:
Establish operational readiness and engage transmission range. The vehicle is now ready to drive and can be moved.
Ending operational readiness/Switching off ignition
Ending operational readiness automatically: Get out of the vehicle with the driver's key and close the driver door. The driver's key is no longer detected outside the vehicle. Operational readiness ends.
Ending operational readiness manually: Press Start/Stop switch until the instrument cluster is switched off.
Ending driving readiness/Stopping engine
Vehicle is stationary: Press the P button on the instrument cluster. The vehicle is parked.
Information
Ensure the consistency of a combination of hardware and software versions
After performing software updates, always make sure that the target software versions are also actually installed on the control units and that the system is therefore ensured.
This also applies in the case of hardware replacement.
See TI 9X00 Information on the software system for various control units in the vehicle (112/21)
Information
The instructions in the Tester 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 additional information may appear in the Tester.
- Read out ERA GLONASS data from the old control unit.
- Remove old control unit for external communication and install new communication control unit.
> 912519 REMOVING AND INSTALLING CONTROL UNIT FOR EXTERNAL COMMUNICATION
- Connect the Tester to the vehicle and start it. Establish operational readiness on the vehicle.
- Place original remote control (hand-held transmitter) in emergency start tray.
Emergency start tray
- Select the vehicle type if necessary.
- Select the Engine immobilizer commissioning
function in the Additional menu.
- 6.1 Follow instructions and procedure.
- 6.2 Teach engine immobilizer according to menu guidance.
- 6.3 The Tester displays the message: Engine immobilizer taught.
- Select the Commission component protection
function in the Additional menu.
- 7.1 Follow instructions and procedure.
- 7.2 Teach component protection according to menu guidance.
- 7.3 The Tester displays the message: Component protection taught.
- Switch back to the Overview menu.
- Select the Connect control unit in the overview.
- Select Coding/programming.
- Select Automatic programming.
Press F12 to continue.
- 11.1 The Tester displays the message: Programming was completed successfully.
- Deactivate flight mode.
> Refer to the appropriate service information.
- Read out ERA GLONASS data from the new control unit and give it to the customer.
- In the overview , press F7 to switch to the Additional menu.
- Read out all fault memories , work through faults that are stored if necessary and clear the fault memories.
- Exit the diagnostic application. End operational readiness on the vehicle. Disconnect the Tester from the vehicle.
- Check satellite reception.
- 17.1 Select the Navigation menu in the display and operator control unit.
- 17.2 Select Location details.
- 17.3 Geometric location coordinates are displayed.