No. 02-21-3

Symptom-based workshop manual
Service
02/21
ENU
4815
4
Symptom on Chassis – Cannot Adjust Electric Steering Column Upwards or Downwards:
Observe Specified Procedure (SY 02/21)
Model Line:
Panamera (971)
Model Year:
As of 2017
Equipment:
Steering column, axial & vertically adjustable with memory (M-no. 2C4)
Concerns:
Servo motor for electric steering column and front-end electronics control unit (BCM)
Symptom:
The electric steering column cannot be adjusted up or down.
The entry 'B14BF01 – Vertical steering column adjustment, electrical fault (010261)' is stored in the fault
memory of the front-end electronics control unit (BCM).
Cause:
This may be due to particle deposits in the servo motor for the electric steering column. This produces
increased resistance by forming a non-conductive oxidation layer.
This oxidation is due to the diagnostic current, low processing current and the oiled carbon brushes.
Remedial
Action:
In the event of a customer complaint, the function of the servo motor for the electric steering column
must be restored and the front-end electronics control unit (BCM) re-programmed using the campaign
code.
Information
The total time required for control unit programming is approx. 6 minutes.
Required tools
Tools:
•
•
Battery charger with a current rating of at least 90 A, e.g. VAS 5908 Battery charger 90A
9900 - PIWIS Tester 3 with PIWIS Tester test software version 40.150.050 (or higher) installed
Parts required if necessary
Information
The parts listed are only required if the steering column needs to be replaced.
Part No.
Designation
– Location
Qty.
N 90799102
 Countersunk screw with internal serration,
self-locking M18 x 1.5 18
– Steering wheel
1 ea.
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Symptom-based workshop manual
02/21
9A700740400
 External hexagon round-head bolt
– Knee airbag on driver side
2 ea.
WHT004955A
 Internal hexagon round cheese head bolt, M8 x 30
– Steering spindle
1 ea.
Only for vehicles with electric steering column
lock (M-no: 0RC):
971419506AQ
 Steering column
1 ea.
Only for vehicles without electric steering
column lock (M-no: 0RZ):
971419506AR
 Steering column
1 ea.
Preparatory work
WARNING
Electrically moved side windows and rear spoiler
•
Danger of limbs being trapped or severed
•
Risk of damage to components

Do not reach into the danger area.

Keep third parties away from the danger area.

Do not move components or tools into the danger area.

Retract roll-up sun blinds on the rear side windows before starting programming or coding.
NOTICE
Fault entry in the fault memory and control unit programming aborted due to undervoltage.
•
Increased current draw during diagnosis or control unit programming can cause a drop in voltage, which
can result in one or more fault entries and the abnormal termination of the programming process.

Before getting started, connect a suitable battery charger with a current rating of at least 90 A to the
jump-start terminals in the engine compartment.
NOTICE
Control unit programming will be aborted if the WiFi connection is unstable.
•
An unstable WiFi connection can interrupt communication between the PIWIS Tester and the vehicle
communication module (VCI). As a result, control unit programming may be aborted.

During control unit programming, always connect the PIWIS Tester to the vehicle communication module
(VCI) via the USB cable.
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Symptom-based workshop manual
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02/21
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NOTICE
Control unit programming will be aborted if the vehicle key is not recognized.
•
If the driver's key is not recognized in the vehicle, programming cannot be started or will be interrupted.

Place the driver's key with the back facing down into the front left storage compartment in the center
console to guarantee a continuous radio link between the vehicle and the driver's key.
Work Procedure: 1
Place the driver's key with the back facing down
into the front left storage compartment in the center
console (emergency start tray) to guarantee a
continuous radio link between the vehicle and the
driver's key  Emergency start tray.
2
Carry out general preliminary work for control unit
programming as described in  Workshop Manual
'9X00IN Basic instructions and procedure for control
unit programming - section on "Preliminary work"'.
Emergency start tray
Re-establishing function of servo motor for electric steering column
CAUTION
Electrically moved components
•
Danger of limbs being trapped

Switch off electric power to drive motor.

Make sure it does not switch on again.

Check that there is no electric charge.
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Work Procedure: 1
Symptom-based workshop manual
02/21
Establish function of servo motor for electric steering
column
1.1
Sit in the vehicle and position the knees
under the steering wheel. Electric steering
column (shown on Macan)
Information
The amount of force required should be about
40 kg.
1.2
Press the steering wheel in  Electric
Electric steering column (shown on Macan)
steering column (shown on Macan)
-direction of arrow- using a lot of force and at the same time actuate the switch for steering
column height adjustment in the corresponding direction of adjustment.
Information
If this method cannot be used to re-establish function in the electric steering column, it must be replaced
before programming.  Workshop Manual '481555 Replacing steering column'
After replacing the electric steering column, programming must always be performed to prevent any
need for subsequent repairs.
Programming front-end electronics control unit
NOTICE
Use of a PIWIS Tester test 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 test software for control unit
programming and coding.
1
The basic procedure for programming a control unit is described in the Workshop Manual 
Workshop Manual '9X00IN Basic instructions and procedure for control unit programming - section
on "Programming"'.
Specific information on control unit programming in the context of this Technical Information:
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Required PIWIS Tester test software version:
40.150.050 (or higher)
Type of control unit programming:
Control unit programming using the 'Campaign'
function in the Additional menu on the PIWIS Tester
by entering a programming code.
Programming code:
G2M5J
Programming sequence:
Read and follow the information and instructions
on the PIWIS Tester during the guided programming
sequence.
During the programming sequence, the front-end
electronics control unit is re-programmed and then
re-coded automatically.
Do not interrupt programming.
Programming time (approx.):
6 minutes
Software version programmed during this
campaign:
0210
The software part number and software
version of the programmed data record are
based on the specified PIWIS Tester test
software version. Please note that these
may have changed in a higher version.
Following control unit programming, the software
version can be read out of the gateway control unit in
the  'Extended identifications' menu using the PIWIS
Tester.
Procedure in the event of error messages
appearing during the programming
sequence:
 Workshop Manual '9X00IN Basic instructions and
procedure for control unit programming - section on
"Fault finding"'
Procedure in the event of abnormal termination of control unit programming:
Repeat control unit programming by restarting
programming.
Concluding work
Work Procedure: 1
Carry out general subsequent work for control unit programming as described in  Workshop
Manual '9X00IN Basic instructions and procedure for control unit programming using the PIWIS
Tester - section on "Subsequent work"'.
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Invoicing
Invoicing:
For documentation and warranty invoicing, enter the labor operations, PQIS coding and part numbers
specified below in the warranty claim:
APOS
Labour operation
I No.
48154940
Reworking steering column center
48154940
Reworking steering column center
48155500
Replacing steering column center
PQIS coding:
Location (FES5)
48150
Steering column center
Damage type (SA4)
1611
does not work
Information
The parts listed are only required if the steering column needs to be replaced.
Part No.
Designation
Qty.
N 90799102
Countersunk screw with internal serration, self-locking
M18 x 1.5 x 18
1 ea.
9A700740400
External hexagon round-head bolt
2 ea.
WHT004955A
Internal hexagon round cheese head bolt, M8 x 30
1 ea.
Only for vehicles with electric steering column
lock:
971419506AQ
Steering column
1 ea.
Only for vehicles without electric steering
column lock:
971419506AR
References:
Steering column
1 ea.
 Workshop Manual '270689 Charging battery/vehicle electrical system'
 Workshop Manual '481555 Replacing steering column'
 Workshop Manual '9X00IN Basic instructions and procedure for control unit programming - section on
"Programming"'.
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Symptom-based workshop manual
Service
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4815
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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.
© 2021 Porsche Cars North America, Inc.
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