No. 65-23
Service Bulletin Details
Public Details for: No. 65-23
Technical information for various pcm central computer fault corrections
Models from 2023
2023 PORSCHE CAYENNE |
2023 PORSCHE CAYENNE E-HYBRID |
2023 PORSCHE CAYENNE GTS |
2023 PORSCHE CAYENNE S |
2023 PORSCHE CAYENNE TURBO |
2023 PORSCHE CAYENNE TURBO GT |
2023 PORSCHE CAYENNE TURBO S E-HYBRID |
Models from 2022
2022 PORSCHE CAYENNE |
2022 PORSCHE CAYENNE E-HYBRID |
2022 PORSCHE CAYENNE GT |
2022 PORSCHE CAYENNE GTS |
2022 PORSCHE CAYENNE S |
2022 PORSCHE CAYENNE TURBO GT |
2022 PORSCHE CAYENNE TURBO S E-HYBRID |
Service Technical Information 65/23 ENU 9152 9 Various PCM Central Computer Fault Corrections: Re-Programming PCM Main Computer (65/23) Revision: This bulletin replaces bulletin Group 9 65/23, dated July 26, 2023. Model Line: Cayenne (9YA/ 9YB) Model Year: As of 2022 up to 2023 Concerns: Control unit for central computer (PCM) Cause: The PCM cannot be switched on or fails intermittently during vehicle operation. Possible error patterns: • • • • PCM screen remains black There is no sound output and hands-free device is faulty Navigation display fails The PCM can only be started again after some time or starts up again on its own On vehicles with BOSE® Surround Sound System (M-No. 9VL) or Burmester® 3D High-End Surround Sound System (M-No. 9VJ), the sound settings in the main menu >> Media >> Bose/Burmester may also be lost after bus rest: • • • No longer ticked on the “Heights and depths” settings No longer ticked on the settings “Balance and fibre” Setting the bars to “0” Real Time Traffic display does not show traffic jams in the text in the route monitor. Action: In the event of a complaint, re-code the central computer (PCM) with the latest PIWIS Tester software version. Information The minimum requirement for coding is the PIWIS Tester software version 42.400.030. Required tools Tools: • • • P90999 - P90999 - PIWIS Tester 4 Battery charger with a current rating of at least 90 A, e.g. VAS 5908 - battery charger 90 A USB storage medium Type A+C 32 GB (for PCM update), Part-No. V04014999WW000, already available at the Porsche Center AfterSales Jan 19, 2024 Page 1 of 6 9 Service 9152 ENU Technical Information 65/23 Overview of PCM update Information The central computer (PCM) software update is performed using a USB storage medium. The software release that is specific to each region must be downloaded using the software tool PiUS (Porsche integrated Update Service) and must be installed on a blank USB storage medium. Pay particular attention to the following: • For this PCM software update, a USB storage medium must be used. • To use the software tool, one blank or re-writable USB storage medium is required for each individual software. • The software available in PiUS must only be used in accordance with the instructions provided in a Technical Information published for this purpose. The software listed here may only be used for the action described here. Damage to the central computer cannot be ruled out if the software is used on other vehicles. You will find further information on installation and use for the PiUS software tool in the PPN portal under *PiUS (Porsche integrated Update Service) goes live*. Overview: Part No. Designation – Region Vehicle allocation 9Y2909000R USB storage medium for PCM update – North America – Mexico I-No. ER3 / ER4 Re-programming central computer (PCM) control unit Information Before starting programming, particular attention must be paid to the following: Jan 19, 2024 Page 2 of 6 • Switch off the charger off and on once; the battery charger display must be off before starting it again, because the battery charger automatically switches to trickle charge after 5 hours (default setting in the charger). • The charger must be set to 14.6 V charging voltage and operated in charging mode. • Vehicles with a PVTS contract must be activated for Service mode. • The PIWIS Tester must not be charged using the cigarette lighter! AfterSales Service Technical Information 65/23 ENU 9152 9 Information If Privacy mode is not active, programming may be aborted, resulting in a defect in the central computer (PCM). Information If control units are found to have faults that are not caused by control unit programming, these must first be found and corrected. Work Procedure: 1 Unless otherwise already done, prepare USB storage medium with the software required for the PCM central computer depending on the country variant in accordance with the above overview. Technical Information 'Overview of PCM update' 2 The basic procedure for control unit programming is described in the Workshop Manual Workshop Manual 'Basic Instructions and Procedure for Control Unit Programming Using the PIWIS Tester'. 3 Select Guest account from the central display (PCM) and activate Privacy mode (available in some countries). 4 Re-program main computer (PCM). For specific information on control unit programming during this campaign, see the table below. Required PIWIS Tester software version: 41.400.030 (or higher) Type of control unit programming: PCM central computer update using PIWIS Tester start code to start the guided programming sequence. The PCM application software is loaded via USB storage medium. In the control unit selection (‘Overview’ menu) select the PCM central computer control unit and select the ‘Service/repairs’ menu. Select the ‘Install software update’ function and press •F12“ (‘Next’) to perform the software update. E3B5S Programming code: AfterSales Jan 19, 2024 Page 3 of 6 9 Service 9152 ENU Technical Information 65/23 Read and follow the information and instructions on the PIWIS Tester during the guided programming sequence. Programming sequence: Do not interrupt programming and coding. A backup documentation process for the re-programmed software versions starts once programming and coding is complete. North America/Mexico (M-No. ER3/ER4): 9Y2909000R / 3882 Required software (part number and software version): • Programming time (up to): 25 minutes Procedure in the event of error messages appearing during the programming sequence: Workshop Manual '9X00IN Basic instructions Procedure in the event of a termination in the control unit programming: Repeat control unit programming by restarting programming. and procedure for control unit programming using the PIWIS Tester - section on “Fault finding”' Additional instructions for aborted programming Technical Information '9X00IN Additional information if programming is aborted' Integration test procedure: • The integration test shows a green result regardless of this update 5 Read out all fault memories, process and delete existing faults if necessary. 6 Press •F3“ to start the integration test in the control unit selection. All affected control units should now be successfully re-programmed or checked in the control unit overview and their status. Information If a deviation in the integration test is still indicated despite programming being carried out, this must be repeated. If the deviation persists, contact Technical Support. Jan 19, 2024 Page 4 of 6 7 End the diagnostic application. Switch off the ignition. Disconnect the Tester from the vehicle. 8 Set battery charger back to a charge voltage of 14.4 volts. AfterSales Service Technical Information 65/23 ENU 9152 9 Additional instructions if programming is aborted Information If individual programming steps or reworking could not be carried out correctly, see Workshop Manual for the basic procedure for control unit programming using the PIWIS Tester Workshop Manual '9X00IN Basic instructions and procedure for control unit programming using the PIWIS Tester – section on “Fault finding”' In the event of a fault, logging must always be created during programming using •Ctrl“and •L“using the PIWIS Tester. Notes: Control unit: Situation: Action: Cancelling individual control units: One or more control units cannot be programmed or can no longer be accessed • • • • Check on whether the control unit can be accessed using the PIWIS Tester or if bus idle does not have to be carried out Control unit still not accessible –> Remove fuse for control unit –> Ignition on –> Ignition off –> Re-insert fuse Control unit still not accessible –> Disconnect battery overnight Check whether the control unit is accessible Central computer (PCM) The central computer freezes while loading • • Starting programming again Performing PCM factory reset using the guided PIWIS Tester procedure Central computer (PCM) The central computer control unit cannot be accessed • Pulling out fuse for central computer control unit –> Ignition on –> Ignition off –> Re-insert fuse AfterSales Jan 19, 2024 Page 5 of 6 9 Service 9152 ENU Technical Information 65/23 Central computer (PCM) Programming of the central computer (PCM) aborts when Fault 33 is detected • • • Fault 33 is displayed in the central computer display during programming Start the update in the Developer menu on the central computer (PCM). The update may only be started from the Developer menu in this case because the PCM is already in the Developer menu If the update still cannot be performed –> replace central computer (PCM) Central computer (PCM) No start of programming • Programming is started via the additional menu and not in the central computer (PCM) control unit under Service / repairs as described in the TI Central computer (PCM) Programming is not started or programming is interrupted • For other topics that are not listed in the TI, a PRMS ticket must be created before replacing the PCM system Labor position and PCSS encryption Labor position: APOS Labor operation 91522520 Programming central computer I No. PCSS encryption: Location (FES5) 91520 Central computer Damage type (SA4) 1614 function not as per specification 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. © 2024 Porsche Cars North America, Inc. Jan 19, 2024 Page 6 of 6 AfterSales