122-P4E8W-06

Service
Technical Information
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WC35
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WC35 - Checking Relays for Engine-Compartment Blower (Workshop Campaign)
Vehicle Type:
911 Carrera (991)/911 Carrera S (991) – Cabriolet
Model Year:
2012
Concerns:
Relay for engine-compartment blower
Revision 1:
July 3, 2012, “or equivalent “ was added to the Deutronic Battery Charging Computer listed under
“Tools”.
Information:
This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. There is the
possibility that the relay for setting 1 of the engine-compartment blower is not inserted correctly in the
relay carrier on the affected vehicles. If the relay is not inserted correctly, the function of setting 1 of the
engine-compartment blower cannot be guaranteed and the driver will see a warning to this effect in the
multi-function display. To remedy the situation, check that the engine-compartment blower relay is seated
correctly in the relay carrier.
Affected
Vehicles:
The VIN(s) can be checked by using PIWIS Vehicle Information link to verify if the campaign affects the
vehicle. This Campaign is scope specific to the VIN! Failure to verify in PIWIS may result in an improper
repair.
Parts Info:
Only required if the flat plugs of the relay are damaged:
999.657.014.90
⇒ Relay for engine-compartment blower
Tools:
PIWIS Tester II 9818
Deutronic Battery Charging Computer DBL1600-14 1391 or equivalent
Work
Procedure:
See Attachment “A”.
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As many as required
(max. 2)
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Administrative
Procedure:
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See Attachment “B”.
Information
The engine-compartment blower relays to be checked are in relay carrier 2 close to the right convertible
top mechanism, between the roll-over protection system frame and the engine bulkhead ⇒ Installation
position of relays for engine-compartment blower.
Installation position of relays for engine-compartment blower
Attachment "A": Work Procedure
Check relays for engine-compartment blower.
1
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Release relay carrier ⇒ Workshop Manual ’9790IN Loosening and securing relay carrier - section on
"Removing"’.
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Remove both engine-compartment blower relays ⇒
Figure 1 -2- from the relay carrier ⇒ Figure 1 -2-.
1
2
Figure 1
3
Check both engine-compartment blower relays.
If one of the flat plugs on the relay is bent ⇒ Figure 2
-arrow-, the relay must be replaced.
Figure 2
If a flat plug is bent, check the plug sockets in the
relay carrier ⇒ Figure 3 -arrow - for deformation
and bend them into shape again using a suitable tool
if necessary.
Figure 3
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4
Press both engine-compartment blower relays ⇒
Figure 4 -1- into the defined slot on the relay carrier
⇒ Figure 4 -2- and check that they are seated
correctly.
5
Secure relay carrier ⇒ Workshop Manual ’9790IN
Loosening and securing relay carrier - section on
"Installing"’
1
2
Figure 4
Procedure:
Perform on-board diagnosis on relays for engine compartment purge fan.
1
Preliminary work.
1.1
Connect a battery charger with a current
rating of at least 40 A.
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.
1.2
PIWIS Tester II 9818 must be connected to
the vehicle communication module (VCI).
Then, connect the communication module
to the vehicle and switch on the PIWIS Tester.
1.3
On the PIWIS Tester start screen, call up the
⇒ ’Diagnostics’ menu and select the vehicle
type.
The diagnostic application is then started and
the control unit selection screen is populated.
2
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Perform drive links test on engine compartment
purge fan setting 1 and setting 2.
External power connection
2.1
In the control unit selection screen ⇒ ⇒’Overview’ menu), select “DME” control unit and
press •F12“ to confirm your selection.
2.2
Skip the question as to whether you want to create a vehicle analysis log (VAL) by pressing
•F11“.
2.3
Once the DME control unit has been found, select the ⇒ ’Drive links/checks’ menu.
2.4
Select the ⇒ ’Drive links’ function and press •F12“ to confirm.
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2.5
Select drive link ⇒’Engine compartment purge fan setting 1 (Low)’ and press •F12“ to
confirm your selection.
2.6
Start drive link for engine compartment purge fan setting 1 (Low)’ by pressing •F8“
(“Execute”).
Both engine compartment purge fans are activated and the value ’100%’ appears in the
’Results’ field. Activation of the engine compartment purge fan is signalled acoustically.
3
2.7
Once the test is completed successfully, replace the value ’100%’ with the value ’0%’ and
continue by pressing •F8“ to stop the activation of the drive links.
2.8
As soon as the drive links test on engine compartment purge fan setting 1 (Low) has
been completed, press •F11“ to go back and perform the drive links test on engine
compartment purge fan setting 2 (High) in accordance with Steps 2.5 to 2.7.
2.9
Once the drive links test is completed successfully, press •F11“ to return to the control unit
selection screen (⇒ ’Overview’ menu).
Read out and erase fault memories.
3.1
In the control unit selection screen (⇒ ’Overview’ menu), press •F7“ to call up the Additional
menu.
3.2
Select the function ⇒ ’Read all fault memories and erase if required’ and press •>>“
to confirm.
The fault memories of the control units are read out.
3.3
Once you have read out the fault memories, erase the fault memory entries by pressing
•F8“.
3.4
Press •F12“ (“Yes”) in response to the question as to whether you really want to erase all
fault memory entries.
The faults stored in the fault memories of the various control units are deleted.
Information
If control units are found to have faults, which cannot be erased and are not associated with
checking the engine-compartment blower relay, these faults must be found and corrected.
This work cannot be invoiced under the workshop campaign number.
3.5
4
Once you have erased the fault memories, select the ⇒ ’Overview’ menu and press •<<“
to return to the control unit selection screen.
Subsequent work.
4.1
Switch off ignition.
4.2
Disconnect the PIWIS Tester from the vehicle.
4.3
Switch off and disconnect the battery charger.
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Attachment "B"
Technical Information
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Enter the workshop campaign in the Warranty and Maintenance booklet.
Administrative Procedure - Workshop Campaign WC35
Warranty claims should be submitted via WWS/PQIS.
Note: Open campaigns can be checked by using the PIWIS Vehicle Information link.
Labor, parts, and sublet will be automatically inserted when Technician is selected in WWS/PQIS.
Invoicing
Scope 1:
Only valid for the 911 Carrera (991)/911 Carrera S (991) - Coupé - see Technical Information for
this vehicle type.
Scope 2:
Checking relays for engine-compartment blower – 911 Carrera (991)/911 Carrera S (991) Cabriolet
Working time:
Labor time: 60 TU
Checking relays for engine-compartment blower
Includes:
Moving convertible top to service position
Removing and installing rear cover
Removing and installing trim panel for convertible top
compartment
Loosening and securing relay carrier
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Performing drive links test on engine compartment purge
fan
Reading out and erasing fault memories
Parts required (only if necessary):
999.657.014.90
Relay for engine-compartment blower
2 ea.
Invoicing: ⇒ Damage code WC35 066 000 1
References:
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⇒ Workshop Manual ’6101IN Convertible-top service position’
⇒ Workshop Manual ’705319 Removing and installing rear cover’
⇒ Workshop Manual ’700819 Removing and installing trim panel for convertible top compartment’
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⇒ Workshop Manual ’9790IN Loosening and securing relay carrier’
Important Notice: Porsche Cars N.A Technical Bulletins are intended for use by professional technicians, not a "Do-it-yourselfer." They are written to inform these technicians of conditions that may
occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Special tools may be required to perform certain operations identified in these bulletins. Use of tools
and procedures other than those recommended in these bulletins may be detrimental to the safe operation of your vehicle. Properly trained technicians have the equipment, tools, safety instructions
and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your Porsche Dealer for
information on whether your vehicle may benefit from the information. Part numbers listed in these bulletins are for reference only. Always check with your authorized Porsche dealer to verify correct part
numbers.
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Dealership
Distribution
Routing
Service Manager
_______
Shop Foreman
_______
Service Technician
________
_______
_______
_______
Asst. Manager
_______
Warranty Admin.
_______
Service Technician
________
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Dr. Ing. h.c. F. Porsche AG is the owner of numerous trademarks, both registered and unregistered, including without limitation the Porsche Crest®, Porsche®, Boxster®, Carrera®, Cayenne®,
Cayman™, Panamera®, Tiptronic®, VarioCam®, PCM®, 911®, 4S®, FOUR, UNCOMPROMISED.® and the model numbers and distinctive shapes of Porsche’s automobiles such as, the federally
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