Body Control Module: Service and Repair

Removing And Installing Gateway Control Unit

Tools







Preliminary work

Remove cover under instrument panel on the passenger's side.

Removing gateway control unit

Removing gateway control module







NOTE: The gateway control module is located on the rear of the glove compartment.

1. Read out data in gateway control module.

ATTENTION: Risk of destruction when removing electric components with the ignition on.

- Switch off ignition and remove ignition key.

2. Switch off ignition and remove ignition key.







3. Unclip gateway control module on glove compartment -arrows A- and remove.







4. Release plug -arrow a- and unplug.

Installing gateway control unit

Installing gateway control module












1. Insert the plug until it is felt to engage.







2. Insert the gateway control module with the guide pin in the guide on the glove compartment and clip in.
3. Program gateway control module.

Programming gateway control unit

Programming gateway control module

NOTE:
- If the gateway control module is replaced, the gateway control module must be programmed or coded with the PIWIS tester. This is to adapt the Gateway control module to the vehicle and equipment.
- Before the gateway control module is removed, the vehicle data should be read out with the PIWIS tester if possible.
- If reading out the data is not possible, the new gateway control module must be coded.
- The power supply for the PIWIS tester must be ensured while reading out the data. It is essential to connect a battery charger with a current rating of at least 40 A to the vehicle battery.
- The PIWIS tester instructions take precedence and in the event of a discrepancy these are the instructions that must be followed. Deviations may occur with later software versions.
- The procedure described here has been structured in general terms; different text or additions may appear in the PIWIS tester.

1. Connect the PIWIS tester 9718 to the vehicle and start it. Switch on the ignition. ">>" Continue.
2. Select vehicle type and continue with ">>".
3. Select the gateway control module and continue with ">>".
4. Select Control module replacement and continue with ">>".
5. Select Read-out values and continue with ">>".
6. On the screen of the PIWIS tester, the following information appears Coding read-out complete. ">>" continue.
7. Switch off ignition and replace Gateway control module.
8. Switch on ignition, after replacing the gateway control module the read-out data are installed in the Values menu. ">>" continue.
9. On the screen of the PIWIS tester, the following information appears Coding write-in complete. ">>" continue.
10. Follow the instructions on the PIWIS tester.
11. Read out the fault memory and, if necessary, erase it.

Coding gateway control unit

Coding the gateway control module

NOTE:
- Coding the new gateway control module is necessary when the data of the old gateway control module cannot be read out with the PIWIS tester.
- During coding, it is essential to guarantee the power supply for the PIWIS tester. It is essential to connect a battery charger with a current rating of at least 40 A to the vehicle battery.
- The PIWIS tester instructions take precedence and in the event of a discrepancy these are the instructions that must be followed. Deviations may occur with later software versions.
- The procedure described here has been structured in general terms; different text or additions may appear in the PIWIS tester.

1. Connect the PIWIS tester 9718 to the vehicle and start it. Switch on the ignition. ">>" Continue.
2. Select vehicle type and continue with ">>".
3. Select the gateway control module and continue with ">>".
4. Select coding and continue with ">>".
5. Select the respective equipment versions and code them.
6. Follow the instructions on the PIWIS tester.
7. Read out the fault memory and, if necessary, erase it.

Subsequent work

Install cover under dashboard on the passenger's side.