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:

Cayenne (9YA/9YB)

Model Year:

As of 2019

Equipment:

Safety steering column with electrical axial and tilt angle adjustment (M-no. 2C7)

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
Information
The Cayenne is equipped as standard with a lithium starter battery, which must only be charged using
suitable battery chargers.
For further information about the battery chargers to be used, see:

Tools:

•

 Workshop Manual '2706IN General information on the 12-volt lithium-ion battery'

•

 Workshop Manual '270689 Charging vehicle electrical system battery'

•

Battery charger with a current rating of at least 90 A and - if required - also with a current and
voltage-controlled charge map for lithium starter batteries, e.g. VAS 5908 Battery charger,
90 A
9900 - PIWIS Tester 3 with PIWIS Tester test software version 40.150.050 (or higher) installed

•

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Service
4815

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Symptom-based workshop manual

02/21

Parts required if necessary
Information
The parts listed are only required if the steering column needs to be replaced.

Parts Info:

Part No.

Designation
– Location

Qty.

N 10518405

 Cheese head bolt with multiple-tooth head,
self-locking, M8 x 30
– Steering spindle

1 ea.

N 01508210

 M6 Hexagon collar nut
– knee airbag on driver side

4 ea.

N 90799102

 Countersunk screw with internal serration, M18 x
1.5 x 18
– Steering wheel

1 ea.

and
PAB419502B

 Steering column
– Left-hand drive version (M-no. L0L)

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.

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Symptom-based workshop manual


Service
02/21

ENU

4815

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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.
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

Position the driver's key in the rear area of the left
cupholder in the center console between the holding
struts (emergency start tray) in order to guarantee a
permanent radio link between the vehicle and 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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Symptom-based workshop manual

02/21

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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:

E3M5J

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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Symptom-based workshop manual

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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

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.

Parts Info:

Part No.

Designation

Qty.

N 10518405

Cheese head bolt with multiple-tooth head,
self-locking, M8 x 30

1 ea.

N 01508210

Hexagon collar nut, M6

4 ea.

N 90799102

Countersunk screw with internal serration, M18 x 1.5
x 18

1 ea.

and
PAB419502B
References:

1 ea.

Steering column (left-hand drive)

 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"'.

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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