Coding And Standardizing Control Unit
NOTE:
Voltage drop
- Risk of irreparable damage to control unit
- Risk of damage to control unit
- Fault entries in the control unit
- Coding in the control unit is aborted
- Malfunctions in control unit, even during programming
→ Prior to disconnecting the control unit, switch off ignition and remove ignition key.
→ Ensure that the power supply is not interrupted during programming.
→ Connect a battery charger with a current rating of at least 90 A to the vehicle battery.
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 additional information may appear on the PIWIS Tester .
- Switch off ignition and replace control unit.
> 729319 REMOVING AND INSTALLING CONTROL UNIT FOR MEMORY SEAT ADJUSTMENT
- Connect the Tester to the vehicle and start it. Switch on ignition.
- Select the vehicle type and start the diagnostic application.
- Select the Driver/Passenger seat memory control unit in the Overview .
- Extended identifications must now be selected.
- Check the VIN and correct it if necessary.
- Coding/adaptations must now be selected.
- Automatic coding must then be selected. Press F12 to start coding.
- The Tester displays the message Coding has been completed successfully . Press F12 to continue.
- Control unit replacement must now be selected.
- Select the Standardize seat motors function, press F12 to continue and then press F8 to start the process.
- Follow the instructions on the Tester.
- The seat automatically moves to various seat positions. When the seat remains stationary for a few minutes, press F12 to continue.
- Read out fault memory and erase it if necessary.
- Carry out a function test.