AKB4 – Air Bag ECU May Malfunction – 2016-2017 Porsche 911 & Boxster, 2016 Cayman & Panamera

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July 17, 2019 NHTSA CAMPAIGN NUMBER: 19V533000

Air Bag ECU May Malfunction

Deactivated air bags increase the risk of injury. Inadvertent deployment of the air bags increase the risk of a crash.

 

NHTSA Campaign Number: 19V533

Manufacturer Porsche Cars North America, Inc.

Components AIR BAGS

Potential Number of Units Affected 7,517

 

Summary

Porsche Cars North America, Inc. (Porsche) is recalling certain 2016-2017 911 and Boxster, 2016 Cayman and Panamera vehicles. The air bag Electronic Control Unit (ECU) may have a defective power supply capacitor that can result in air bag deactivation or inadvertent deployment of the air bags.

 

Remedy

Porsche will notify owners, and dealers will install new software and replace the air bag ECU as necessary, free of charge. Interim notices informing owners of the safety risk were mailed September 13, 2019. Owners received a second notice and the recall began February 12, 2020. Owners may contact Porsche customer service at 1-800-767-7243. Porsche’s number for this recall is AKB4.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

 

Check if your Porsche has a Recall

 


AKB4  – Re-programming Airbag Control Unit (Stop Delivery/Recall Campaign)

Model Line: Panamera (970)

Boxster (981)/Cayman (981)

718 Boxster (982)/718 Cayman (982) 911 (991)

Model Year: As of 2016 up to 2017
Subject: Airbag control unit
Important: CRITICAL WARNING – This campaign includes steps where control unit(s) in the vehicle will be programmed with the PIWIS Tester. The vehicle voltage must be maintained between 13.5 volts and 14.5 volts during this programming. Failure to maintain this voltage could result in damaged control unit(s). Damage caused by inadequate voltage during programming is not a warrantable defect. The technician must verify the actual vehicle voltage in the PIWIS Tester before starting the campaign and also document the actual voltage on the repair order.
Information: There is a possibility that an airbag control unit with a defective capacitor for maintaining power supply may have been installed on the affected vehicles.

This defective capacitor in the airbag control unit can trigger the airbags and/or seat-belt pretensioners in the vehicle unexpectedly or can prevent them from triggering.

Remedial Action: Re-program the airbag control unit using the PIWIS Tester with test software version 38.950.010 (or higher) installed.

Information

The new software includes an additional check function for the power supply of the airbag control unit, which can be used to detect a faulty capacitor.

The following procedure is therefore used for processing this campaign (brief overview):

General procedure Result of check Additional measure required Warranty processing
Only for 982 and 991 from model year 2017:

Reading out software version of the airbag control unit

  • If the SW version is 2050 and the Porsche part number index is greater than 08
No action required

Programming is no longer required in this case.

Scope 11
Re -program airbag control unit and then check airbag warning light
  • Once the airbag warning light has been programmed and checked, no warning message is displayed in the instrument cluster

and

  • no fault memory entry “Airbag triggering unit faulty” (Fault code: C11005) is displayed
none Scope 1

(valid for all model lines)

  • Once the airbag warning light has been programmed and checked, permanent warning message in the instrument cluster and
  • fault memory entry “Airbag triggering unit faulty” (Fault code: C11005) are displayed
Replacing airbag control unit Scope 2 – 5 or 10 (depending on model line)

 

Special case: Action required Warranty processing
  • Airbag warning light already active before programming the airbag control unit and
  • fault memory entry Airbag triggering unit faulty” (Fault code: C11005) is displayed
Replacing airbag control unit

Programming is no longer required in this case.

Scope 6 – 9

(depending on model line)

 

Affected Vehicles: Only vehicles assigned to the campaign (see also PCSS Vehicle Information). This campaign affects 8,057 vehicles in North America.

 

Required tools

Tools:

 

Preparatory work

NOTICE

Fault entry in the fault memory and control unit programming aborted due to low-voltage.

  • 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.

⇒ Before starting control unit programming, connect a suitable battery charger with a current rating of at least 90 A to the vehicle.

 

NOTICE

Control unit programming will be aborted if the WLAN 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 driver’s 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.

 


Pre-Information: AKB4 Recall campaign –

Re-programming the airbag control unit Version 2

Important Update: 9/12/19

Due to regulatory obligations and deadlines, Porsche will notify customers by mail tomorrow 9/13/19 that their vehicles are affected by the AKB4 Recall, but the necessary so ware and parts are not yet available. The letter mailed tomorrow states that Porsche will again contact these customers by mail when the remedy is available.

Please take note of this information and inform customers that may potentially contact you that the remedy is still being prepared and that Porsche will again notify them when the remedy is available. In the meantime, if their red Airbag Warning Lamp is illuminated, please arrange an appointment for diagnosis and repair of the affected part.

Thank you for your attention to this matter.

Further information will be published to PPN as it is made available.

 

Overview

AKB4 Recall Campaign- Re-programming the airbag control unit

 

Overview

There is a possibility that the a ected vehicles have been equipped with an Airbag control unit containing a faulty power supply capacitor.

A faulty capacitor may lead to an unexpected deployment of the vehicle’s Airbags and/or safety belt pretensioners, or can cause the non-deployment of the vehicle’s Airbags and/or safety belt pretensioners.

To prevent this from happening, the Airbag control unit must be re-programmed with a new so ware containing an additional check of the power supply. In case of a faulty Airbag control unit, this must be replaced.

Model type Panamera (970)

Boxster (981)

718 Boxster (982)

Cayman (981)

718 Cayman (982)

911 (991)

Model year 2016 to 2017
Number of affected vehicles 7515

 


6 Affected Products

Vehicles

MAKE MODEL YEAR
PORSCHE 911 2016-2017
PORSCHE BOXSTER 2016-2017
PORSCHE CAYMAN 2016
PORSCHE PANAMERA 2016

 


10 Associated Documents

Recall Quarterly Report #1, 2020-1

RCLQRT-19V533-6694.PDF 211.136KB

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Part 577 Owner Notification Envelope

RONE-19V533-6433.pdf 50.908KB

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ISSUED Owner Notification Letter(Part 577)

RCONL-19V533-4902.pdf 122.998KB

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Manufacturer Reimbursement Plan

RMRP-19V533-0792.pdf 4067.841KB

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Manufacturer Notices(to Dealers,etc) – AKB4 Recall campaign – Reprogramming airbag control unit

RCMN-19V533-2485.pdf 155.688KB

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Remedy Instructions and TSB

RCRIT-19V533-2789.pdf 349.19KB

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Manufacturer Notices(to Dealers,etc) – PPN Portal Pre-Information: AKB4 Recall campaign – Re-programming the airbag control unit Version 2

RCMN-19V533-8063.pdf 52.622KB

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Recall Acknowledgement

RCAK-19V533-1594.pdf 244.554KB

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Defect Notice 573 Report

RCLRPT-19V533-4490.PDF 217.123KB

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ISSUED Interim Owner Notification Letter(Part 577)

RIONL-19V533-9783.pdf 98.447KB

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=19V533&docType=RCL

 


 

Reprogramming

For reprogramming and flashing Porsche vehicles without a factory diagnostic device, Porsche recommends the following devices:

Recommended Pass Thru Devices:

 

J2534 Device

AKB4 - Air Bag ECU May Malfunction - 2016-2017 Porsche 911 & Boxster, 2016 Cayman & Panamera | small light CarDAQ-Plus 3 All Makes J2534 Reprogramming Tool
AKB4 - Air Bag ECU May Malfunction - 2016-2017 Porsche 911 & Boxster, 2016 Cayman & Panamera | small light RAP2 OEM J2534 Remote Reprogramming Tool
AKB4 - Air Bag ECU May Malfunction - 2016-2017 Porsche 911 & Boxster, 2016 Cayman & Panamera | small light CarDAQ-Plus 2 Diagnostic Code Reader and J2534 Programming Tool
AKB4 - Air Bag ECU May Malfunction - 2016-2017 Porsche 911 & Boxster, 2016 Cayman & Panamera | small light Drew Technologies (DRWCDPLUSKIT) CarDAQ-Plus J2534 Flash Reprogramming Kit
Bosch Automotive Tools MTECH2 Mastertech II J2534 VCI with Wired/Wireless Capability for OEM Reprogramming and Diagnostics on GM, Ford, FCA, Nissan/Infiniti, Honda/Acura, and Toyota/Lexus Vehicles
Autel MaxiFlash Elite VCI J2534 Pass-Thru ECU Programming Tool
AKB4 - Air Bag ECU May Malfunction - 2016-2017 Porsche 911 & Boxster, 2016 Cayman & Panamera | small light Autel MaxiFlash VCI Vehicle Communication Interface J2534 PassThru ECU Programming Device Bluetooth Connection Internet Update Support CAN FD, 4 CAN Channels, DoIP, D-PDU Works with PC or Autel MS909
AKB4 - Air Bag ECU May Malfunction - 2016-2017 Porsche 911 & Boxster, 2016 Cayman & Panamera | small light VXDIAG VCX Nano Compatible for GM/OPEL with GDS2 and Tech2WIN System Diagnostic Tool
AKB4 - Air Bag ECU May Malfunction - 2016-2017 Porsche 911 & Boxster, 2016 Cayman & Panamera | small light GODIAG J2534

 

Porsche is not responsible for any content on these two external sites

 


Pass Thru - Check ECU

Pass Thru - ECU Check verifies the vehicle compliance with the latest air polution restrictions of the following organisations:

- Environmental Protection Agency (EPA)
- California Air Resources Board (CARB).

 

Pass Thru - Check ECU checks the Vehicle Identification Number (VIN) stored in the vehicles Digital Motor Electronic (ECU) against the PAG database.

Pass Thru - Check ECU is free of charge and does not require any login.

 

How to perform a Pass Thru - ECU Check:

  • Enter the Vehicle Identification Number (VIN).
  • In case of EPA offical enter the CVN ID.
  • In case of CARB offical enter the Cal ID.
  • Click the "CHECK ECU Version" button.

If the VIN is valid you see:

VIN IS VALID - User has the latest Update

 

How to find the VIN:

The VIN is labeled inside the windscreen at the bottom right side: see sample.

 

How to get the CVN ID / Cal ID:

CVN / Cal IDs can be retrieved with a generic scan tool device.

 

techinfo2.porsche.com

 


 

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Last update on 2024-06-16 / Affiliate links / Images from Amazon Product Advertising API

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