Incident: Electrical System Malfunction Causes Volkswagen Recall of 280,915 Vehicles

Published Date: 2017-08-31

Postmortem Analysis
Timeline 1. The software failure incident happened in the past, as the article mentions a recall for vehicles manufactured between 2006 and 2016. 2. Article published on 2017-08-31. 3. Estimated timeline: The incident likely occurred before the article was published, possibly in 2017 or earlier.
System The software failure incident in this case is related to the electrical system of certain Volkswagen vehicles. Specifically, the fuel pump module in the 2009-2016 CC, the 2006-2010 Passat sedan, and the 2006-2010 Passat station wagon experienced interruptions in electricity, leading to issues such as fuel pump failure and continuous running of the fuel pump, causing stalling while in motion or draining the battery when parked [62077]. Therefore, the systems/components that failed in this software failure incident are: 1. Fuel pump module in the 2009-2016 CC 2. Fuel pump module in the 2006-2010 Passat sedan 3. Fuel pump module in the 2006-2010 Passat station wagon
Responsible Organization 1. The software failure incident in the Volkswagen vehicles was caused by an interruption in the electricity powering the fuel pump module, leading to fuel pump failure and potential stalling of the vehicle [62077].
Impacted Organization 1. Vehicle owners of Volkswagen models including the 2009-2016 CC, the 2006-2010 Passat sedan, and the 2006-2010 Passat station wagon were impacted by the software failure incident related to the electrical system causing fuel pump issues [62077].
Software Causes 1. The software cause of the failure incident was an interruption in the electricity powering the fuel pump module, leading to the fuel pump failure and potential stalling of the vehicle [62077].
Non-software Causes 1. Electrical interruption in the electricity powering the fuel pump module causing the fuel pump to fail, leading to stalling of the vehicle [62077].
Impacts 1. The software failure incident in Volkswagen vehicles led to the potential stalling of the vehicle when in motion, posing a safety risk to drivers and passengers [62077]. 2. The same electrical issue could cause the fuel pump to run continuously when the vehicle is parked, leading to battery drainage and preventing the vehicle from starting [62077].
Preventions 1. Implementing thorough quality control measures during the design and manufacturing process to detect and rectify potential electrical system issues before vehicles are released to the market [62077]. 2. Conducting more extensive testing and validation of the electrical system components to ensure their reliability and performance under various operating conditions [62077]. 3. Enhancing communication and collaboration between different manufacturing plants to ensure consistent quality standards across all production lines [62077].
Fixes 1. Technicians replacing the fuel pump control module and relocating it to reduce stress on the part [62077].
References 1. Chinese authorities [62077] 2. Volkswagen (specifically mentioned in the article) [62077]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization (a) The software failure incident related to the fuel pump module issue affecting Volkswagen vehicles has happened again within the same organization. The article mentions that Chinese authorities originally uncovered the problem, which led to a recall in the Chinese market. Subsequently, due to the US-based vehicles being "substantially similar" to their Chinese counterparts, Volkswagen initiated a recall in the US as well [62077]. This indicates a recurrence of the software failure incident within Volkswagen's products. (b) The software failure incident related to the fuel pump module issue affecting Volkswagen vehicles has not been reported to have happened again at other organizations or with their products and services. The focus of the article is on Volkswagen's recall due to the electrical system issue, and there is no mention of similar incidents at other organizations [62077].
Phase (Design/Operation) design (a) The software failure incident in this case is related to the design phase. The issue stems from the electrical system design of the affected Volkswagen vehicles. An interruption in the electricity powering the fuel pump module, caused by a design flaw, could lead to the fuel pump failure and potential stalling of the vehicle while in motion. Additionally, the same design flaw could cause the fuel pump to run continuously when the vehicle is parked, draining the battery and preventing the vehicle from starting. This design flaw was identified by Chinese authorities and led to a recall in both the Chinese and US markets, indicating a systemic issue introduced during the development phase of the vehicles [62077]. (b) There is no specific information in the article indicating that the software failure incident was due to factors introduced by the operation or misuse of the system.
Boundary (Internal/External) within_system (a) The software failure incident described in the article is within_system. The issue stems from the electrical system of the vehicles, specifically related to an interruption in the electricity powering the fuel pump module, causing the fuel pump to fail and potentially leading to stalling while in motion or draining the battery when parked [62077]. The problem is internal to the vehicle's electrical system, indicating a within_system software failure incident.
Nature (Human/Non-human) non-human_actions (a) The software failure incident in this case is attributed to non-human actions, specifically an interruption in the electricity powering the fuel pump module causing the fuel pump to fail, leading to stalling of the vehicle or continuous running of the fuel pump when parked. This interruption in the electrical system is a technical issue rather than a result of human actions [62077].
Dimension (Hardware/Software) hardware (a) The software failure incident in the Volkswagen vehicles was due to a hardware issue related to the electrical system. Specifically, an interruption in the electricity powering the fuel pump module could cause the fuel pump itself to fail, leading to stalling while in motion or draining the battery when parked [62077].
Objective (Malicious/Non-malicious) non-malicious (a) The software failure incident in this case is non-malicious. The issue stems from an interruption in the electricity powering the fuel pump module in Volkswagen vehicles, which could cause the fuel pump to fail and lead to stalling while in motion or draining the battery when parked. This is a technical fault in the electrical system rather than a deliberate act to harm the system [62077].
Intent (Poor/Accidental Decisions) unknown The software failure incident described in Article #62077 is not directly related to poor or accidental decisions. Instead, it is attributed to an electrical system issue in Volkswagen vehicles that could lead to the fuel pump module failing, causing stalling or battery drainage [62077].
Capability (Incompetence/Accidental) accidental (a) The software failure incident in this case is not directly attributed to development incompetence. The issue with the electrical system causing the fuel pump module to fail and potentially stall the vehicle seems to be more related to a technical fault rather than incompetence in development. (b) The software failure incident appears to be accidental. The article describes the issue as an "electrical malady" and an "electrical gremlin," indicating that the problem with the fuel pump module was unintentional and not deliberately introduced.
Duration temporary The software failure incident described in the article is more likely to be temporary rather than permanent. The issue with the electrical system in the Volkswagen vehicles is causing interruptions in the electricity powering the fuel pump module, leading to potential stalling or continuous running of the fuel pump. This issue is specific to certain circumstances (when the vehicle is in motion or parked) and is not a permanent failure affecting all circumstances. The temporary nature of the failure is evident from the fact that technicians will be replacing the fuel pump control module and relocating it to reduce stress on the part, indicating a targeted solution to address the specific issue [62077].
Behaviour crash (a) crash: The software failure incident in the article can be categorized as a crash. The issue with the electrical system in the Volkswagen vehicles could cause the fuel pump to fail while the vehicle is in motion, leading to the vehicle stalling. This can be considered a crash as the system loses its state and fails to perform its intended function of maintaining the fuel pump operation, resulting in the vehicle stalling [62077].

IoT System Layer

Layer Option Rationale
Perception None None
Communication None None
Application None None

Other Details

Category Option Rationale
Consequence property The consequence of the software failure incident related to the Volkswagen recall mentioned in Article 62077 is primarily categorized under option (d) property. The software failure in the electrical system of the affected vehicles could cause the fuel pump to fail, leading to potential stalling of the vehicle while in motion or draining the battery when parked. This property-related consequence impacts the functionality of the vehicles and the potential inconvenience to the owners in terms of vehicle operation and reliability. The article does not mention any direct physical harm, deaths, or significant delays caused by the software failure incident.
Domain transportation The software failure incident reported in Article #62077 is related to the transportation industry. Volkswagen issued a recall for several vehicle models due to an electrical issue affecting the fuel pump module, which could cause the vehicle to stall while in motion or prevent it from starting when parked [62077]. This incident directly impacts the transportation sector as it involves vehicles and their functionality on the road.

Sources

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