No. 173-20

Service
Technical Information
173/20 ENU
9152
9
Complaint - Navigation in the PCM is Loading Very Slowly or does Not Start: Observe
Specified Procedure (173/20)
Model Lines:
Macan (95B)
Cayenne (9YA)
Model Year:
As of 2018 up to 2019
Concerns:
Porsche Communication Management (PCM) central computer
Information:
After Navigation is selected in Porsche Communication Management (PCM), it is only loaded very slowly
or does not start. A black screen is visible for several minutes and the message 'Starting Navigation'
appears.
The following additional errors can occur:
•
•
Action
Required:
Navigation function temporarily not available.
Navigation data temporarily unavailable.
Delete all data in the menu item 'Navigation settings' under 'Personal routes'.
Delete personal route data
Work Procedure: 1
On the main menu 'Settings', select 'Navigation'  Main menu -1-.
Main menu
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Technical Information
173/20
Select drop-down menu 'Options'  Options drop-down menu -1-.
Options drop-down menu
3
Select menu item 'Navigation settings'  Navigation settings menu item -1-.
Navigation settings menu item
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173/20 ENU
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Select menu item 'Personal routes'  Personal routes menu item -1-.
Personal routes menu item
5
Select menu item 'Delete all'  Delete all menu item -1-.
Delete all menu item
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Select the 'Delete' button Delete button -1-.
Delete button
If the problem persists, please proceed as follows:
6.1
Select drop-down menu 'Options'.
6.2
Select menu item 'Navigation settings'.
6.3
Select menu item 'Personal routes'.
6.4
Deactivate the 'Personal routes' function.
Invoicing
For documentation and warranty invoicing, enter the PQIS coding specified below in the warranty claim:
Location (FES5)
91520
Central computer
Damage type (SA4)
1611
does not function
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.
©2020 Porsche Cars North America, Inc.
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