No. 125-20 Service Bulletin/Repair Instructions

Service
Technical Information
125/20 ENU
9152
9
Complaint: Intersection Assist Cannot be Deactivated (125/20)
Model Line:
Cayenne (9YA/9YB)
Model Year:
As of 2018 up to 2020
Equipment:
Intersection Assist (I No. JX1)

without Lane Change Assist (I No. 7Y0)
Subject:
Central computer
Information:
Intersection Assist (I No. JX1) cannot be deactivated because the button for deactivating Intersection Assist is not displayed in the PCM menu under "Assist" in the central display.
Remedial

Action:
If the problem occurs, code the central computer automatically.
Required tools

Tools:
•
•
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

90A

9900 - PIWIS Tester 3 with installed PIWIS Tester software version 39.600.015 (or higher)
Re-code the central computer

NOTICE

Fault entry in the fault memory and/or control unit coding aborted due to low voltage.

•
Increased current draw during diagnosis or control unit coding can cause a drop in voltage, which can

result in one or more fault entries and the abnormal termination of the coding process.

Before getting started, connect a suitable battery charger with a current rating of at least 90 A to the

jump-start terminals.

NOTICE
Control unit coding 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, coding may be aborted.

During control unit coding, always connect the PIWIS Tester to the vehicle communication module (VCI) via

the USB cable.
AfterSales
Aug 24, 2020

Page 1 of 3
9
Service

9152
Technical Information
ENU 125/20
NOTICE

Control unit coding will be aborted if the driver's key is not recognized

•
If the driver's key is not recognized in the vehicle, coding 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.

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

•
Measure is ineffective

Always use the specified version or a higher version of the PIWIS Tester software for control unit coding.
Information

The procedure described here is based on the PIWIS Tester 3 software version 39.600.015.

The PIWIS Tester instructions take precedence and in the event of a discrepancy, these are the

instructions that must be followed.

A discrepancy may arise with later software versions for example.

Work

Procedure:
Re-code the central computer (PCM) automatically.

Required PIWIS Tester software version:
39.600.015 (or higher)
Type of control unit coding:
Control unit coding using the 'Automatic coding'

function for the control unit:

Control unit ‘PCM’ – ‘Coding / Programming’ menu

– ‘Automatic coding’ function.

Read and follow the information and instructions on

the PIWIS Tester during the guided coding sequence.
Coding sequence:
Do not interrupt coding.

When coding is complete, the message “Coding has

been completed successfully” is displayed and a tick

appears in the 'Status' box.

Procedure if control unit coding is not

successful:
Aug 24, 2020

Page 2 of 3
Repeat control unit coding.
AfterSales
Service
Technical Information
125/20 ENU
9152
9
Invoicing

Invoicing:
For documentation and warranty invoicing, enter the labor operation and PQIS coding specified below in

the warranty claim:
APOS
Labour operation
91522508
Programming central computer
I No.
PQIS coding:

Location (FES5)
91520
Central computer
Damage type (SA4)
1614
Function not as specified
References:
 Workshop Manual '9X00IN Basic instructions and procedure for control unit programming using the

PIWIS Tester'
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.
© 2020 Porsche Cars North America, Inc.
AfterSales
Aug 24, 2020

Page 3 of 3

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