Fault Finding & Information On LED Status: Troubleshooting

Check that the network name [Service Set IDentifier (SSID)] is sent from the gateway control unit.
1. 1.1. iOS operating system:
  Switch on ignition and perform a network search using the smartphone.
  
  If the search is successful, the last six digits of the chassis number will be displayed.
  
  Exit the network search. Switch off ignition.
  
  Fig 1: Screen Display - iOS Operating System
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 1.2. Android operating system:
  Switch on ignition and perform a network search using the smartphone.
  
  If the search is successful, the last six digits of the chassis number will be displayed.
  
  Exit the network search. Switch off ignition.
  
  Fig 2: Screen Display - Android Operating System
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Check LED codes above the accelerator pedal in the footwell.

Fig 3: Checking LED Codes
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Perform control unit reset.
1. 3.1. Disconnect electric plug connection from the control unit and then re-connect it. Checking LED codes
Check if there is a CAN connection and if the control unit if receiving a power supply.
1. 4.1. Check CAN connection using PIWIS Tester II 9818 .
2. 4.2. If the LED does not light up, check the power connection.
Replace the control unit if no errors were found during Steps 1 - 4. → 902619 REMOVING AND INSTALLING TIME MANAGEMENT CONTROL UNIT