No. 10-05

911 (997)
Technical Information
10/05
ENU
9112
9
PCM2.1 and Navigation Unit: System Connection Software Release, “Model Level B"
Revision:
This bulletin replaces bulletin Group 9 10/05, dated June 23, 2005.
Model Year:
As of 2005
Vehicle Type:
911 Carrera (997)/911 Carrera S (997)/911 GT3 (997)
Equipment:
PCM 2.1 (I No. 665)
Navigation (I No. 670)
This Relates To: - PCM 2.1 operator control unit
- Navigation unit
Situation:
New system connection software release, software name - Model Level B. Earlier system
connection software, release name - Model Level A.
Since approx mid-April 2005 a new system level software release (Model Level B) was introduced as
standard equipment for PCM 2.1 and DVD navigation unit. This release includes changes to both the
PCM2.1 head unit hardware and the DVD navigation unit hardware as well as the software for both
components.
The Navigation DVD required for this software release is labeled "04.2005" and comes with the
vehicle (since approx. mid-April 2005).
CAUTION
Incompatibility of hardware and software for PCM 2.1 and navigation unit with previous versions.

The navigation DVD that is valid as of Model Level B (label 04.2005 or higher) is not compatible with the
previous navigation unit since a software update of the PCM 2.1. system connection is required for this; ( a
corresponding Technical Information release is being prepared for this.

The navigation DVDs that are valid for Model Level A (label 04.2004/08.2004/10.2004) cannot be used
in the navigation unit installed as of Model Level B.

In both cases (Model Level A <-> Model Level B), the software will detect and prevent an inadvertent or
forced update (compatibility check).
Date of
Introduction:
Mid-April 2005 (CW 16)
AfterSales
Mar 1, 2024
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9
911 (997)
9112
Parts
Information:
ENU
Technical Information
10/05
Vehicles built pre mid-April 2005 (Model Level A)
PCM
PCM Software
NAVI Module
DVD
997.642.131.xx
1.0, 2.0, 2.1
997.642.135.xx
04.2004/08.2004/10
.2004
997.642.133.xx
1.0, 2.0, 2.1
997.642.135.xx
04.2004/08.2004/10
.2004
Vehicles built post mid-April 2005 (Model Level B)
PCM
PCM Software
NAVI Module
DVD
997.642.141.xx
3.0, 3.1
997.642.137.xx
04.2005
997.642.143.xx
3.0, 3.1
997.642.139.xx
04.2005
Any combination of PCM and Navigation Module can be found within the specific Model Level. Please
inform all your service personnel of this accordingly.
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.
© 2024 Porsche Cars North America, Inc.
Mar 1, 2024
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