Programming Transmission Control Unit
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2018 Porsche Cayenne, 2017 Porsche Cayenne, 2016 Porsche Cayenne, 2015 Porsche Cayenne, and 2014 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
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 → Nominal value: 40 A to the vehicle battery.
Information
The control unit can no longer and will no longer be taught using PIWIS Tester II 9818 .
The control unit is only removed and installed again.
- Replace transmission control unit. → 373019 REMOVING AND INSTALLING TRANSMISSION CONTROL UNIT
- PIWIS Tester II 9818 must be connected to the vehicle before starting the Tester. Switch on ignition.
- Select the vehicle type and start the diagnostic application.
- Read out the fault memory and erase it if necessary.