According to the TechSci Research report, “Global Automotive Secondary Wiring Harness Market – Global Industry Size, Share, Trends, Competition Forecast & Opportunities, 2028”, the market stood at USD 19 billion in 2022 and is expected to grow at a CAGR of 9.6% from 2024 to 2028.
This growth is primarily driven by rising demand for advanced automotive technologies, electrification of vehicles, and regulatory requirements aimed at improving vehicle safety and reducing emissions. As automotive architecture becomes increasingly complex, secondary wiring harness systems have evolved into a critical element supporting next-generation automotive design. This report will explore these factors in-depth, discussing how advancements in automotive features, rising vehicle production, and regulatory changes contribute to the growing demand for secondary wiring harnesses, as well as the challenges and opportunities faced by the industry.
Automotive Secondary Wiring Harness Market Dynamics
Key Market Drivers
- Technological Advancements in Automotive Electronics
The automotive industry is increasingly shifting towards vehicles that incorporate more electronic systems to enhance driver experience, vehicle performance, and safety. Features such as infotainment systems, advanced driver assistance systems (ADAS), adaptive lighting, and electronic parking brakes all require reliable and sophisticated wiring systems. These innovations necessitate the development of advanced secondary wiring harnesses that can handle high-frequency data transmission and power distribution without compromising the integrity of other vehicle functions.
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- Rise in Electric Vehicle Adoption
The automotive industry is experiencing a rapid transition toward electric vehicles due to growing environmental concerns and favorable government policies such as tax incentives and emission regulations. EVs require complex electrical systems to manage high-capacity batteries, motors, and charging infrastructure. Secondary wiring harnesses play a vital role in managing auxiliary systems that are integral to the operation of electric drivetrains, HVAC systems, and other in-vehicle electronics. The rising adoption of electric vehicles across regions like Europe, North America, and China is a key driver behind the demand for secondary wiring harnesses, as these vehicles have more electronics per unit than traditional internal combustion engine (ICE) vehicles.
- Consumer Demand for Comfort and Connectivity
In addition to safety and environmental considerations, consumer preferences are also driving the demand for advanced vehicle technologies. Consumers increasingly expect features such as in-car entertainment, climate control, and personalized lighting. To meet these expectations, automotive manufacturers must equip vehicles with sophisticated electrical architectures that rely heavily on secondary wiring harnesses. As automakers look to integrate features like wireless charging, remote vehicle management, and enhanced connectivity, secondary wiring harnesses become essential for managing the power and data needs of these next-generation features.
Key Automotive Secondary Wiring Harness Market Challenges
While secondary wiring harnesses are essential for the operation of modern vehicles, they are expensive to produce, especially when the wiring must be tailored to fit the unique requirements of each vehicle model. The development of complex, high-performance harnesses requires specialized materials, precise design, and integration with a range of automotive systems. The increasing use of advanced sensors and electronic systems in modern vehicles means that wiring harnesses are becoming larger, more intricate, and more costly. This complexity can raise production costs for automakers, especially for electric and autonomous vehicles, which require more advanced systems.
As vehicle technologies evolve, secondary wiring harnesses must remain compatible with the ever-changing architectures of modern vehicles. Newer systems often require different signal transmission standards, connectors, and power ratings, which present compatibility challenges for legacy wiring systems. Additionally, the integration of new electronic features, such as autonomous driving systems, requires new and customized wiring solutions. Manufacturers must continuously adapt to these advancements to ensure that their harnesses meet the needs of the automotive market.
Automotive Secondary Wiring Harness Market Segmentation
- By Vehicle Type
Internal Combustion Engine (ICE) Vehicles
Internal combustion engine (ICE) vehicles, which still dominate the global market, require a range of secondary wiring harnesses to manage electronic systems in the cabin, engine, doors, and more. Although the demand for ICE vehicles has slowed in certain markets due to the rise of electric vehicles, these vehicles continue to account for a large share of the global automotive market. Secondary wiring harnesses in ICE vehicles are primarily focused on comfort, convenience, and safety features.
Electric Vehicles (EVs)
Electric vehicles are experiencing rapid growth as governments push for cleaner transportation and consumers become more environmentally conscious. These vehicles rely on a much higher degree of electrification compared to traditional ICE vehicles, with many more electrical components and systems integrated into the vehicle architecture. The high number of sensors, batteries, electronic control units (ECUs), and electric motors necessitates advanced secondary wiring harnesses capable of supporting these systems. As EV adoption continues to rise globally, the demand for secondary wiring harnesses is expected to increase correspondingly.
- By Application
Cabin
The cabin harness connects various in-cabin features such as lighting, entertainment systems, HVAC (heating, ventilation, and air conditioning), and power windows. These components require stable, high-quality wiring to ensure consistent performance. As consumers increasingly demand personalized and luxurious in-cabin experiences, the complexity of cabin harnesses has grown.
Door Harness
The door harness is integral to systems such as power windows, central locking, and side-view mirrors. Additionally, the integration of side airbags and electronic door locking mechanisms has increased the complexity of door harness systems. As vehicles become more sophisticated, the need for advanced door harness systems is also increasing.
Engine Harness
The engine harness, while more closely associated with the primary wiring system, also supports secondary systems such as cooling fans, sensors, and certain sensors for engine diagnostics. With the rise of hybrid and electric vehicles, engine harnesses must be adapted to meet the unique needs of electric powertrains.
Airbag Harness
Airbag systems are a critical safety feature in modern vehicles. The airbag harness ensures that airbag sensors receive and transmit accurate signals to deploy airbags in the event of a collision. The complexity and importance of these harnesses make them a high-priority component for manufacturers.
Electronic Parking Brake
Electronic parking brakes (EPBs) are replacing traditional manual brake levers in many modern vehicles. These systems rely on specialized wiring harnesses to provide the necessary signals for brake actuation, a key factor in the overall safety and performance of the vehicle.
Electronic Gear Shift System
Electronic gear shift systems, particularly in automatic and electric vehicles, require highly precise wiring to ensure smooth gear transitions. These systems represent an important aspect of vehicle performance and require dedicated wiring to function reliably.
Regional Automotive Secondary Wiring Harness Market Analysis
Asia-Pacific
Market Leader and Innovation Hub
The Asia-Pacific region holds the largest share of the global automotive secondary wiring harness market. Major automotive manufacturing hubs in China, Japan, South Korea, and India are contributing to rapid growth in this region. With the strong demand for both electric and hybrid vehicles in China and India, the need for secondary wiring harness systems is increasing. Additionally, Japan and South Korea are home to some of the world’s largest automotive manufacturers, further driving market growth. Furthermore, Asia-Pacific is witnessing an increase in consumer demand for advanced features, such as connected car technologies and autonomous driving systems, which are driving up the need for sophisticated wiring solutions.
North America
Technology Adoption and Regulatory Compliance
North America is witnessing significant adoption of electric and autonomous vehicles, spurred by incentives from the U.S. government and increasing consumer demand for sustainable transportation. The region’s automotive industry is also subject to stringent safety and emissions regulations, which are driving innovation in wiring harness design to meet evolving standards. Secondary wiring harness systems are playing a crucial role in ensuring the safety, comfort, and functionality of these next-generation vehicles.
Europe
Sustainability and EV Boom
Europe is one of the leading regions in terms of electric vehicle adoption. With aggressive targets for carbon reduction and sustainability, European countries are promoting the transition to electric and hybrid vehicles. This is resulting in an increased demand for secondary wiring harnesses, particularly those that support the advanced electronics found in these vehicles. Furthermore, Europe’s stringent safety and environmental standards are pushing manufacturers to develop innovative wiring solutions that comply with regulatory requirements.
Rest of the World
Emerging Growth Opportunities
Latin America, the Middle East, and Africa represent emerging markets for the automotive secondary wiring harness sector. While these regions are still developing their automotive industries, increasing urbanization, rising disposable incomes, and growing demand for vehicle electrification are contributing to the growth of the market. However, the cost-sensitive nature of these markets means that affordable yet efficient wiring solutions are in high demand.
Competitive Landscape
Major Market Players
Aptiv PLC
Yazaki Corporation
Furukawa Electric Co. Ltd.
THB Group
Spark Minda
Samvardhana Motherson Group
Leoni AG
Sumitomo Electric Industries Ltd.
Lear Corporation
Ashok Minda Group
These companies are leading the global secondary wiring harness market through investments in R&D, global expansions, and strategic collaborations. They continue to innovate by offering customizable solutions that cater to the needs of both traditional vehicles and electric vehicles, ensuring a diverse portfolio of products.
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Recent Developments
In 2022, Aptiv Plc signed a definitive agreement to acquire Intercable Automotive Solutions from Intercable Srl for EUR 595 million.
Motherson Sumi Ltd inaugurated its third facility in Serbia at Požarevac to strengthen its European presence and meet growing OEM demands.
Trends and Innovations
Emerging technologies such as autonomous driving and connected vehicle systems require high-speed, low-latency data transmission. Secondary wiring harnesses are evolving to support faster data transfer, which is essential for systems like real-time navigation updates, safety features, and autonomous driving sensors. Artificial intelligence is increasingly being integrated into wiring systems for vehicle diagnostics and predictive maintenance. AI can help predict component failures, optimize wiring layouts, and automate the manufacturing process, reducing production time and cost.
As vehicle designs become more complex, modular wiring harness systems are gaining popularity. These systems allow for more efficient assembly, better scalability, and reduced costs. Modular harnesses also facilitate easier repairs and replacements, offering flexibility for manufacturers and consumers alike.
Future Outlook
The Global Automotive Secondary Wiring Harness Market is set to experience significant growth over the next decade. With the increasing complexity of modern vehicles, particularly electric and autonomous vehicles, the demand for advanced secondary wiring harnesses will continue to rise. The next few years will likely see innovations in high-speed data transmission, AI integration, and lightweight materials, which will shape the future of the industry.
Conclusion
The global automotive secondary wiring harness market is rapidly evolving, driven by technological advancements, regulatory requirements, and consumer demand for advanced vehicle features. Although challenges such as cost and complexity exist, the growing trend toward electric and autonomous vehicles presents a wealth of opportunities for market participants. By focusing on innovation, sustainability, and strategic partnerships, companies can position themselves for success in this dynamic and competitive sector.
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