# Service bulletin 122\-Z5F9U\-06

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10109303
- Published by NHTSA: 2017\-08\-01
- Manufacturer's number: 122\-Z5F9U\-06
- Manufacturer's date: 2012\-05\-01
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

Concerns: PDK control unit Information: This is to inform you of a voluntary Workshop Campaign on certain 911 Carrera \(991\) and 911 Carrera S \(991\) vehicles. The PDK control unit can sometimes be misdiagnosed on the affected vehicles due to a software error if the engine is switched off in selector\-lever positions "P" or "D" and is then re\-started again in selector\-lever position "N". As a result, fault code "P1772 \- Gear valve 2 stuck on pressure" is stored in the fault memory of the PDK control unit and the PDK transmission switches to the reduced driving program until the ignition is switched off and on again.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2012/MC-10109303-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2012/MC-10109303-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Transmission and driveline, Automatic transmission, Software, Transmission control module

## Trouble codes named

P1772

## Vehicles listed

- 2012 PORSCHE 911 CARRERA

## Other bulletins for the same vehicles and component

- [PIWIS2401j](/bulletins/10251154.md), 2024-03-04, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE. Information for PIWIS tester update 42.500.020
- [PIWIS2301ay](/bulletins/10242133.md), 2023-09-09, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE. Information on PIWIS tester update 42.100.060 \& .065
- [No. 148\-21](/bulletins/10208612.md), 2022-03-03, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE. Technical information for recall campaign AMC0. re\-programing DME and transmission control unit.
- [9912133\-15](/bulletins/10198505.md), 2021-06-28, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. WF86 \- Re\-Programming DME Control Unit \(Workshop Campaign\)
- [PIWIS2001v](/bulletins/10176881.md), 2020-07-02, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Information on new PIWIS tester update 39.500.020 and .025.
- [No. 41\-20](/bulletins/10176852.md), 2020-07-01, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. Instructions on how to perform a PVTS Software update in the event that a car will not start.
- [122\-E6U4B\-12](/bulletins/10153573.md), 2019-02-25, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. Subject: Shift lever Information: The shift lever can move in longitudinal direction during load changes in 4th gear.
- [122\-G7H3U\-06](/bulletins/10117473.md), 2017-09-14, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Concerns: Instrument cluster Information: This is to inform you of a voluntary Workshop Campaign on the above\-mentioned vehicles. The following fault symptoms can occur on the affected vehicles due to a software error in the instrument cluster: \* Failure of the display on the multi\-function display: The display on the multi\-function display in the instrument cluster can stop working at times under certain conditions. The display starts working again after a certain time. \* Implausible service reminder indicator display: The driver is informed that a service \(maintenance, intermediate maintenance or oil service\) is due although the mileage and date for a required service have not yet been reached.
- [122\-Y9X5V\-06](/bulletins/10117472.md), 2017-09-14, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL. Concerns: Control unit for Porsche Dynamic Chassis Control \(PDCC\) Information: This is to inform you of a voluntary Workshop Campaign on the above\-mentioned vehicles. Due to a software error in the control unit for Porsche Dynamic Chassis Control \(PDCC\), there is a possibility that an unauthorized fault code will be stored in the control unit under certain ambient conditions. This can cause the error message "PDCC failure" to be displayed in the instrument cluster and the PDCC function will no longer be available.
- [122\-R2J7H\-06](/bulletins/10109350.md), 2017-08-01, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Concerns: Electronic logbook in Porsche Communication Management \(PCM\) 3.1 Information: This is to inform you of a voluntary Workshop Campaign on the above\-mentioned vehicles. Implausible entries can appear in the logbook \(e.g. negativemileage, double entries\) on the affected vehicles due to incorrect PCM software. Earlier entries in the logbook can even be overwritten in some cases.

JSON: [/v1/bulletins/10109303](/v1/bulletins/10109303)

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