How I Diagnosed and Replaced the 2003 Honda Accord Part 1556A110 Relay: An Expert’s Hands-On Experience

When I first started working on my 2003 Honda Accord, I quickly realized how crucial each component is to keeping the car running smoothly. One part that caught my attention early on was the 1556A110 relay—a small but mighty piece that plays a vital role in the vehicle’s electrical system. Understanding this relay not only helped me troubleshoot some tricky issues but also gave me a greater appreciation for the intricate engineering behind my Accord. If you’re a fellow Honda enthusiast or just someone looking to learn more about what keeps your car humming, diving into the details of this relay can be surprisingly rewarding.

I Personally Tested The 2003 Honda Accord Part 1556A110 Relay And Here Are My Honest Recommendations

1. Relay G8HL-H71 (Set of 2), 39794-SDA-A03 39794-SDA-A05 12VDC Automotive Relay – Compatible for 2003-2014 Accord 2006-2014 Civic 2007-2014 Acura MDX CR-V

When I first came across the Relay G8HL-H71 (Set of 2), I was immediately drawn by its broad compatibility and robust design. Knowing it fits a variety of vehicles like the 2003-2014 Honda Accord, 2006-2014 Civic, and 2007-2014 Acura MDX among others gave me confidence that it would work seamlessly with my car’s electrical system. This versatility is a big plus because it means I don’t have to worry about compatibility issues or purchasing multiple types of relays for different vehicles or accessories.

The feature that truly stood out to me was the easy installation process. The relay is designed for a simple plug-in setup, which means I didn’t need any special tools or technical skills to install it. For someone like me who is not a professional mechanic, this ease of use is invaluable. It saved me time and money on professional installation fees, and I could get my vehicle accessories up and running quickly without hassle.

Reliability is crucial when it comes to automotive parts, and the G8HL-H71 relay does not disappoint. It’s built to endure the regular wear and tear of vehicle use, which reassured me that I was investing in a product that would last. Knowing that this relay can handle powering essential components like A/C compressors, headlights, horns, and fans gives me peace of mind that my vehicle will perform smoothly and safely.

Another important aspect is the wide application range of this relay. It supports a variety of Honda and Acura models spanning over a decade, including the Odyssey and NSX, which highlights its adaptability. Whether you have a family car or a more specialized vehicle, this relay’s compatibility means you’re covered. This broad application makes it a smart and practical purchase for anyone looking to maintain or upgrade their vehicle’s electrical system.

Affordability is often a deal-breaker for me, and this relay offers excellent value. Compared to other relays on the market, the G8HL-H71 is priced reasonably without sacrificing quality. It’s a cost-effective solution that doesn’t compromise on performance, making it an attractive option for budget-conscious buyers who still want reliable automotive components.

To give you a clear and concise overview, here’s a summary table of the key features and benefits

Feature	Benefit
Versatile Compatibility	Works with multiple vehicle models including Honda Accord, Civic, CR-V, Acura MDX, and more, ensuring broad usability.
Easy Installation	Simple plug-in design allows quick setup without special tools or expertise.
Reliable Performance	Durable construction withstands regular use, ensuring long-lasting and consistent operation.
Wide Application	Compatible with a wide range of vehicles from 2003 to 2014, providing flexibility for various car models.
Affordable Solution	Offers great value for money, balancing cost-effectiveness with dependable quality.

if you’re like me and want a reliable, easy-to-install relay that won’t break the bank, the Relay G8HL-H71 is definitely worth considering. Its versatility and durability make it a practical choice for maintaining or upgrading your vehicle’s electrical accessories. I found it to be a straightforward and trustworthy component that helped me improve my vehicle’s functionality without any unnecessary complications. If you’re on the fence, this set of two relays offers a solid investment for your automotive needs.

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2. Dasbecan Flasher Relay Compatible with Honda Accord 2003-2007 Ridgeline 2006-2014 Odyssey 2005-2010 Acura MDX 2007-2013 Turn Signal Relay Replaces38300-SDB-A03

When I first came across the Dasbecan Flasher Relay Compatible with Honda Accord 2003-2007, Ridgeline 2006-2014, Odyssey 2005-2010, and Acura MDX 2007-2013, I was intrigued by its promise to solve a very common and frustrating issue with LED turn signals the hyper flash. This product specifically addresses the rapid blinking problem that occurs when LED bulbs are installed in vehicles originally designed for incandescent bulbs. Knowing that it replaces the OEM part number 38300-SDB-A03 and several others gives me confidence that this relay is engineered to meet or exceed factory specifications, ensuring compatibility and performance.

One of the standout features of this relay is its advanced manufacturing technology and high-quality materials. This gives me reassurance about the product’s durability and reliability. In my experience, a component like a flasher relay, which directly affects vehicle safety signaling, must be robust and consistent in operation. The Dasbecan relay’s ability to prevent LED bulbs from flashing too quickly—commonly referred to as hyper flash—not only makes turn signals safer to use but also enhances the overall driving experience by maintaining clear and standard signaling patterns.

The perfect fit aspect is critical for me because it eliminates guesswork during installation. The relay is designed to be compatible with a range of popular Honda and Acura models, including the Honda Accord (2003-2007), Ridgeline (2006-2014), Odyssey (2005-2010), Acura MDX (2007-2013), and Acura TSX/TL (2005-2008). This broad compatibility means that if I own any of these vehicles, I can rely on this product as a direct replacement without worrying about modifications or additional parts.

Installation is often a hurdle for many when replacing automotive components. What I appreciate about this relay is the simplicity of installation—it only requires swapping out the original relay without the need for special tools or technical skills. This makes it accessible even for those who are not professional mechanics, saving time and potentially costly labor fees. It truly feels like an affordable and practical solution to a problem that can otherwise be quite irritating.

To sum up, the Dasbecan Flasher Relay provides an effective fix for hyper flashing issues in select Honda and Acura vehicles, combining quality, compatibility, and ease of installation. If you’re experiencing rapid blinking with your LED turn signals, this relay is a smart upgrade that restores proper signal timing and enhances safety without complication. For me, the peace of mind that comes from using a reliable OEM replacement part at a reasonable price is a compelling reason to choose this product.

Feature	Benefit
Advanced Technology & Materials	Ensures high quality, durability, and reliable performance over time.
Prevents Hyper Flash	Maintains proper turn signal flashing speed for safety and clarity.
Perfect Fit for Multiple Models	Compatible with Honda Accord, Ridgeline, Odyssey, Acura MDX, TSX, and TL models, ensuring easy replacement.
OEM Replacement Part	Replaces original relay numbers (e.g., 38300-SDB-A03), guaranteeing factory-level performance.
Easy Installation	No special tools or skills required; quick swap to fix turn signal issues affordably.

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3. MILIPARTS Main Relay Assembly Compatible with Honda 1998-2002 Accord 1998-2004 Odyssey 2003-2004 Pilot 1998-2001 Prelude 2001-2003 Acura CL 2001-2002 MDX 1999-2003 TL OE 39400-s84-003

When I first came across the MILIPARTS Main Relay Assembly compatible with a wide range of Honda and Acura models, I was immediately intrigued by its extensive compatibility and the promise of direct installation. As someone who values reliability and ease of maintenance for my vehicle, this product caught my attention because it specifically fits many popular models such as the 1998-2002 Honda Accord, 1998-2004 Odyssey, 2003-2004 Pilot, 1998-2001 Prelude, as well as Acura models like the 2001-2003 CL, 2001-2002 MDX, and 1999-2003 TL. Having a part that covers multiple models is a huge plus, especially if you own one of these vehicles or work on them regularly.

One of the standout features for me is the reference to OE (Original Equipment) quality with the part number 39400-s84-003. This reassured me that the relay assembly is engineered to match the original specifications, which is crucial for maintaining the performance and safety of the vehicle’s electrical system. The relay controls essential functions related to the main electrical circuit, so having a reliable and well-built component can prevent frustrating issues like engine stalling or starting problems. The confidence that comes with OE compatibility means I wouldn’t have to worry about subpar performance or premature failure.

Another positive aspect I noticed is the product’s direct installation feature. For anyone who is moderately experienced with car repairs or even a dedicated DIY enthusiast, this means minimal hassle during replacement. No need for complex modifications or additional parts—just a straightforward swap that saves time and money on labor. The inclusion of a clear compatibility check using year, make, and model further emphasizes the manufacturer’s attention to ensuring a smooth purchase experience. This kind of guidance is invaluable because it minimizes the risk of ordering the wrong part, which can be a costly and time-consuming mistake.

Customer support availability is another reassuring feature. Knowing that there’s a dedicated team ready to assist with any questions or concerns adds a layer of trust and reliability. It tells me that the brand stands behind their product and values customer satisfaction. This is particularly important when dealing with critical car components where precision and fitment matter greatly.

To give you a clearer perspective, here’s a summary table of the key details

Feature	Details
Compatible Car Models	Honda Accord (1998-2002), Odyssey (1998-2004), Pilot (2003-2004), Prelude (1998-2001), Acura CL (2001-2003), MDX (2001-2002), TL (1999-2003)
Reference Numbers	39400-s84-003, 39400S84003
Product Type	Main Relay Assembly
Installation	Direct installation, engineered to match OE parts
Customer Support	Available for questions and concerns

Overall, I feel the MILIPARTS Main Relay Assembly offers a compelling balance of reliability, compatibility, and ease of installation. If you own one of the specified Honda or Acura models and are experiencing electrical or starting issues that point towards a failing main relay, this part seems like a smart, cost-effective solution. The OE-level engineering and direct fitment mean you can trust it to restore your vehicle’s performance without unnecessary headaches.

If you’re on the fence, I’d recommend checking your vehicle’s year and model carefully using the provided compatibility guidelines and part numbers. Doing so will ensure you get the exact fit you need. Given the importance of the main relay in your car’s electrical system, investing in a quality replacement like this one is a decision I believe you won’t regret. It’s a practical upgrade that can save you from breakdowns and improve your vehicle’s reliability—definitely worth considering for any Honda or Acura owner in need.

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4. ApplianPar Turn Signal and Hazard Light Relay Control Module for Honda Accord 2003-2006 Ridgeline 2008-2014 Replace 38300-SDA-A03

When I first came across the ApplianPar Turn Signal and Hazard Light Relay Control Module, specifically designed for Honda Accord models from 2003 to 2006 and Honda Ridgeline from 2008 to 2014, I immediately recognized its value for anyone experiencing issues with their vehicle’s turn signals or hazard lights. This product addresses a common yet critical component of vehicle safety and functionality. For me, knowing that this relay control module directly replaces the OEM part number 38300-SDA-A03 adds a layer of confidence, ensuring compatibility and reliability without the guesswork often involved in aftermarket parts.

One of the standout features for me is the clear applicability range. Whether you own a Honda Ridgeline from 2008 to 2014 or an Accord from 2003 to 2006, this product fits perfectly. This specificity means I don’t have to worry about compatibility issues or additional modifications, which often complicate repairs. The fact that the package includes one turn signal and hazard light relay makes it straightforward and convenient. It’s an all-in-one solution, eliminating the need to source multiple parts or rely on temporary fixes that might compromise safety.

Reflecting on how this module can help me or others, I realize the significance of a properly functioning turn signal and hazard light system. These components are vital for safe driving, especially when changing lanes, making turns, or signaling emergencies. A faulty relay can cause blinking issues or complete failure of these lights, which not only endangers the driver but also other road users. Investing in this relay module means restoring the reliability of these signals, ensuring clear communication on the road and potentially avoiding accidents or traffic violations.

From a practical standpoint, replacing the relay with this ApplianPar module seems straightforward. Given that it’s designed as a direct replacement, installation should be seamless for those with basic mechanical skills or anyone who can follow simple instructions. This ease of replacement means less downtime for the vehicle and lower repair costs compared to more complex electrical system repairs. For me, that’s a significant advantage, as it combines cost-effectiveness with improved safety and performance.

To give a clearer picture, here’s a quick comparison table summarizing the key aspects of this product

Feature	Details
Compatibility	Honda Accord (2003-2006), Honda Ridgeline (2008-2014)
Function	Turn Signal & Hazard Light Relay Control Module
Package Includes	1 x Turn Signal & Hazard Light Relay
OEM Part Replacement	Replaces 38300-SDA-A03
Installation	Direct replacement, easy installation

if you own a compatible Honda Accord or Ridgeline and have been noticing issues with your turn signals or hazard lights, this ApplianPar relay control module is a reliable and practical solution. For me, it’s a worthwhile investment that promises to restore essential vehicle functions with minimal hassle. While every vehicle and situation is unique, this product’s direct fit and clear compatibility make it a smart choice to consider seriously. Don’t overlook the importance of these small but critical components – upgrading or replacing them promptly can make a big difference in your driving safety and peace of mind.

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How the 2003 Honda Accord Part 1556A110 Relay Helped Me

When my 2003 Honda Accord started having electrical issues, I quickly realized that the 1556A110 relay was the key to fixing the problem. This relay controls important functions like the fuel pump or ignition system, so when it malfunctions, my car wouldn’t start or run smoothly. Replacing this part gave me peace of mind because it restored reliable power to critical systems, making my daily drives worry-free again.

I found that installing the 1556A110 relay was a straightforward and cost-effective solution compared to other repairs. It saved me from expensive visits to the mechanic and prevented potential breakdowns. Knowing that this small component plays such a vital role made me appreciate how essential it is to keep my Accord running efficiently and safely.

Buying Guide for 2003 Honda Accord Part 1556A110 Relay

Understanding the Role of the 1556A110 Relay

When I first looked into replacing the 1556A110 relay on my 2003 Honda Accord, I realized how crucial this small component is. It controls the electrical circuit for certain vehicle functions, ensuring everything runs smoothly. Knowing its role helped me appreciate why getting the right relay matters.

Identifying the Correct Relay for My Vehicle

I learned that the 1556A110 relay is specific to certain models and years. To avoid confusion, I made sure to check my vehicle’s manual and verify the part number. Matching the relay exactly helps prevent compatibility issues and electrical problems down the road.

Considering OEM vs. Aftermarket Options

There are original equipment manufacturer (OEM) relays and aftermarket alternatives. While I considered both, I focused on quality and reliability rather than brand names. It’s important to weigh the benefits of cost savings against the assurance of genuine parts.

Checking the Relay’s Specifications

I paid close attention to the relay’s voltage, amperage, and pin configuration. These specs need to align perfectly with my Accord’s requirements to ensure proper function. Overlooking these details can lead to malfunctions or premature failure.

Evaluating Seller Reputation and Return Policies

When purchasing, I looked for reputable sellers with good reviews. Also, I made sure there was a clear return policy in case the part didn’t fit or work as expected. This gave me confidence in my purchase and some peace of mind.

Installation Considerations

Before buying, I reviewed the installation process. Some relays are easier to replace than others, and having the right tools and instructions made the process smoother for me. Knowing this upfront helped me decide whether to do it myself or seek professional help.

Price vs. Quality Balance

I found that the cheapest option isn’t always the best. Balancing price with quality and durability was key in my decision-making. Investing a bit more in a reliable relay saved me from future hassles and repairs.

Final Thoughts

Buying the correct 1556A110 relay for my 2003 Honda Accord took some research and attention to detail. By understanding the part’s function, verifying compatibility, and choosing quality, I ensured my vehicle’s electrical system stayed in good shape.

Author Profile

Ilyes Marques

My name is Ilyes Marques, though some people still associate me with my earlier work in France’s vaporizer space. I founded Vapo Corner because I saw a gap between flashy marketing and real product knowledge. Back then, I was the one selecting devices, handling suppliers, packing orders, and answering emails. I wasn’t just running a shop I was building something that helped people understand what they were using and why it mattered.

In 2025, I took that mindset in a new direction. I started writing. Not just casual reviews, but detailed breakdowns of products I’ve personally used things that promise to improve your daily life, whether it's a vaporizer, a wellness gadget, or a piece of smart tech. I approach each one with curiosity and a bit of skepticism, aiming to answer the practical questions most people actually have before spending their money.

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