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WJ90 - Checking Hinge For Convertible-Top Compartment Lid (Workshop Campaign)

Vehicle type:

911 Targa 4 (991)/911 Targa 4S (991)/911 Targa 4 GTS (991)

Model Year:

As of 2014 up to 2019

Subject:

Hinge for convertible-top compartment lid

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.

Information:

There is a possibility that the end position in the actuating mechanism for the convertible-top
compartment lid on the affected vehicles may not be reached due to unfavorable tolerances.
This could result in the convertible top being partially released.
Partial release of the convertible top will not be noticed by the customer because no warning message is
displayed. As a result, the convertible-top compartment lid could lift up slightly at high speeds and could
cause problems such as visible shaking and loud wind noise.

Remedial
Action:

•
•

Checking hinge for convertible-top compartment lid and reworking it if necessary
Re-coding convertible top control unit (depending on the date of manufacture of the vehicle)

Information
Updated coding parameters for the convertible top control unit have been used during series
production. Vehicles produced since the introduction of the updated coding parameters do not
therefore have to be re-coded.
In order to differentiate the vehicles, they are assigned different campaign scopes.
•

Campaign scope 1 and 3: Coding not required

•

Campaign scope 2 and 4: Coding is required

To find out which campaign scope is assigned to the respective vehicle, see also PIWIS Vehicle
Information.
For an overview of the campaign scopes, see  Technical Information 'Warranty processing'
Affected
Vehicles:

Only the vehicles assigned to the campaign (see also PIWIS Vehicle information). This campaign affects
4,104 vehicles in North America.

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Installation
Position:

Installation position of hinge

Required materials and tools
Materials:

Required materials (usually already available in the Porsche Dealership):
Part No.

Designation
– Use

Qty.

00004330509

 Lubricant (Krytox GPL205)
– Hook on hinge

0.6 g
(60g tube)

NOTICE
Use of a PIWIS Tester software version that is older than the prescribed version
•

Measure is ineffective



Always use the prescribed version or a higher version of the PIWIS Tester software for control unit
programming.

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Technical Information
Tools:

•
•
•
•

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Star gauges, e.g. VAS 6937, 3371 or equivalent
9900 - PIWIS Tester 3 with PIWIS Tester software version 37.400.020 (or higher) installed
Battery charger with a current rating of 90A VAS 5908
Commercially available suction cups

Checking hinge for convertible-top compartment lid and reworking it if necessary - all vehicles
Work Procedure: 1

Switch on ignition and open and close the convertible top completely using the switch in the center
console.

2

Extend rear spoiler manually using the button in the center console and switch off ignition.

3

Wait at least 5 minutes after actuating the convertible-top compartment lid so that the convertible
top mechanism is depressurised.

4

Check that the hinge for the convertible-top compartment lid is locking correctly.
4.1

Using suction cups at the left and right of
the rear window, pull upwards forcefully
at least 3 times and check whether the
convertible-top compartment lid can be lifted.

Checking by pulling at the front

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4.2

Pull convertible-top compartment lid at
the left and right in the rear spoiler area up
forcefully at least 3 times and shake it
slightly.
•

•

The convertible-top compartment lid
cannot be lifted: The convertible-top
compartment lid is locked correctly.
The convertible-top compartment
lid lifts up: The hinge is not locking
correctly.

Subsequent procedure, depending on
the result of the check:
- ( ) - Convertible-top compartment lid
is OK and coding is not required. End of
action required. Warranty processing: Scope
1.

Checking by pulling at the rear
- ( ) - Convertible-top compartment lid is
OK and coding is required: Continue with  Technical Information 'Re-coding convertible
top control unit'. Warranty processing: Scope 2.
- () - Convertible-top compartment lid is not OK and coding is not required: Continue
with  Workshop Manual '61901510 Adjusting convertible-top compartment lid'. Warranty
processing: Scope 3.
- () - Convertible-top compartment lid is not OK and coding is required: Continue
with  Workshop Manual '61901510 Adjusting convertible-top compartment lid' and then
 Technical Information '61901510 Re-coding convertible top control unit'. Warranty
processing: Scope 4.

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Clean the front and rear hook on the left and right
hinge and then lubricate them with Krytox as shown.

Lubricating hooks

Re-coding convertible top control unit - only for vehicles with campaign scope 2 and 4
NOTICE
Coding will be aborted in the event of low voltage.
•

Increased power consumption during diagnosis can cause a drop in voltage, which can result in one or
more fault entries and abortion of the coding process.



Before getting started, connect a suitable battery charger to the jump-start terminals in the engine
compartment.
NOTICE

Coding will be aborted if the WLAN connection is unstable.
•

An unstable WiFi connection can interrupt communication between the PIWIS Tester and the vehicle
communication module (VCI). As a result, coding may be aborted.



During control unit coding, always connect the PIWIS Tester to the vehicle communication module (VCI) via
the USB cable.
NOTICE

Control unit coding will be aborted if the vehicle key is not recognized
•

If the vehicle key is not recognized in vehicles with Porsche Entry & Drive, coding cannot be started or will
be interrupted.

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Switch on the ignition using the original vehicle key. To do this, replace the dummy key in the ignition lock
with the original vehicle key if necessary.

Work Procedure: 1

Connect battery charger.
First connect the positive cable of the charger to the
positive terminal of the battery and then connect the
negative cable of the charger to the ground point for
jump-lead starting  External power connection.

2

Switch on the ignition.

3

9900 - PIWIS Tester 3 must be connected to the
vehicle communication module (VCI) via the USB
cable. Then connect the communication module