# Service bulletin 122\-K7S2R\-05

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: 10117416
- Published by NHTSA: 2017\-09\-14
- Manufacturer's number: 122\-K7S2R\-05
- Manufacturer's date: 2015\-05\-27
- NHTSA component: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\); ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

Concerns: Control unit for all\-wheel drive system Porsche Traction Management \(PTM\) Information: This is to inform you of a voluntary Workshop Campaign on the above\-mentioned vehicles. The affected vehicles were fitted with a control unit for the all\-wheel drive system in which a purging routine for the hydraulic pump drive for the multiplate clutch is not activated due to an error in the control unit software. This can cause wear particles to clog up the hydraulic pump drive over the service life of the vehicle, resulting in higher power consumption for the pump drive. As a result, the all\-wheel drive system will be deactivated and the warning message "No all\-wheel sys. " Only rear\-wh drive" Adapted driving permitted" will be displayed in the instrument cluster.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10117416-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10117416-0001.pdf)

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

## Components

Electrical system, Transmission and driveline, Software, Transfer case

## Vehicles listed

- 2014 to 2015 PORSCHE 911 TARGA 4

## 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\-D6B2X\-09](/bulletins/10165172.md), 2019-09-23, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Instructions for retrofitting Sport Plus Mode on vehciles without sport chrono package already installed.
- [122\-T4M9P\-09](/bulletins/10165171.md), 2019-09-23, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Instructions for retrofitting Sport Plus Mode on vehciles without sport chrono package already installed.
- [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.

JSON: [/v1/bulletins/10117416](/v1/bulletins/10117416)

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