No. 251-22

Service
Technical Information
251/22 ENU WNV7
9
WNV7 - Activating Gateway Off-Road Function Control Unit (Workshop Campaign)
Important:
CRITICAL WARNING -This campaign includes steps where control unit(s) in the vehicle will be
programmed with the PIWIS Tester. The vehicle voltage must be maintained between 13.5 volts and 14.5
volts during this programming. Failure to maintain this voltage could result in damaged control unit(s).
Damage caused by inadequate voltage during programming is not a warrantable defect. The technician
must verify the actual vehicle voltage in the PIWIS Tester before starting the campaign and also document
the actual voltage on the repair order.
Model Year:
As of 2022
Model Line:
Cayenne (9YA/9YB)
Concerns:
Activating off-road function
Cause:
There is no option to select the various offroad scenarios in the central computer (PCM) on the
affected vehicles.
As a result, customers cannot individually adapt their off-road mode according to the condition of the
ground.
Action required: Therefore, the off-road function must be activated on the affected vehicles.
Minimum requirement: Version 41.550.010
Affected
Vehicles:
Only vehicles assigned to the campaign (see also PCSS Vehicle Information).
Required tools
Tool:
•
•
9900 - PIWIS Tester 3
Battery charger with a current rating of at least 90A, e.g. VAS 5908 battery charger 90A
Activating gateway off-road function control unit
Work Procedure: 1
The basic procedure for control unit programming/enabling function is described in the Workshop
Manual  Workshop Manual 'Basic instructions and procedure for control unit programming using
the PIWIS Tester'.
2
Call up “Diagnostics” in the PIWIS start menu and then select “Additional menu” (F7).
3
Select “Enabling function” and confirm with “Next” (F12).
4
Select “Restore function enabling” and confirm with “Next” (F12).
AfterSales
Jan 9, 2023
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9
Service
Technical Information
ENU 251/22
WNV7
5
Select the gateway control unit and confirm with “Next” (F12). Carry out the rest of the procedure
according to the PIWIS tester.
6
Check whether the off-road driving modes can be selected in the PCM.
7
Enter the campaign in the Warranty and Maintenance booklet.
Warranty processing
Scope 1:
Labor time:
Activating off-road functions
Includes:
Connecting and disconnecting battery charger
Driving modes test
Connecting and disconnecting PIWIS Tester
Labor time: 29 TU
 Damage code WNV7 066 000 1
Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed.
© 2023 Porsche Cars North America, Inc.
Jan 9, 2023
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