What Should Be Checked Before Attempting a Reset?

Resetting a crash-locked airbag control module is a precise and technical operation. It's not something that should be approached casually or without preparation. At MyAirbags, we consistently receive modules from shops and individuals who’ve tried resetting before conducting basic diagnostics. The results are often the same: failed resets, recurring warning lights, and compromised safety systems. Resetting should never be the first step. It's the final step—only after ensuring every surrounding component is functional and safe.

Understanding what to inspect before a reset is key to restoring your vehicle's Supplemental Restraint System (SRS). In this article, we outline the critical items that must be checked prior to initiating a reset. We also explain how MyAirbags follows a meticulous process to ensure your module works the first time, every time. If you're unsure whether your vehicle is ready for a reset, we’re here to help—reach out to MyAirbags for expert diagnostics, airbag repair, or seatbelt tensioner services.

Why Pre-Reset Checks Are Critical?

Pre-reset inspections are not optional—they’re essential for avoiding failures. Every crash event is different, but they all affect interconnected systems within your car. Resetting a module without resolving those external issues is like changing a fuse while ignoring the short that blew it.

Technicians who skip these diagnostics often end up redoing the reset or, worse, replacing the module unnecessarily. Many of the modules we receive at MyAirbags contain previously attempted resets that didn’t address root problems. That’s why we educate customers and reinforce the need for system-wide verification.

The Risk of Skipping Diagnostics

Diagnostic checks identify external faults that may interfere with a successful reset. A module could appear to reset normally but may not communicate properly with a compromised wiring system. In some cases, electrical faults damage the EEPROM or microcontroller, making the module irreparable.

We’ve seen cases where skipping diagnostics has caused short circuits that not only relock the module but affect other control systems. Fault codes often persist or reappear, confusing the repair process. A thorough diagnostic eliminates guesswork and protects your vehicle’s electronics. That’s why our technicians review system integrity before doing anything else.

What Happens If You Reset Too Early?

Attempting a reset before resolving related hardware issues will result in immediate failure. For example, a damaged seatbelt pretensioner will send a new fault code to the cleared module, causing it to relock. Without replacing deployed components, the system won’t allow a reset to remain functional.

Crash codes are not the only issue in many airbag modules. Secondary DTCs, such as sensor errors or open circuits, can trigger system errors even after memory is cleared. We frequently receive reset modules from other shops that relocked due to unresolved faults. At MyAirbags, we follow the full airbag module replacement guide and require all surrounding faults to be addressed first.

Ensuring Long-Term Module Function

A one-time reset won’t last if the module is surrounded by faulty components. Every piece of the SRS—airbags, sensors, wiring, power supply—must be operational for the reset to hold. A successful reset isn’t about just clearing codes; it’s about ensuring the module’s long-term functionality in a crash.

We use our own internal checklist to verify that the reset will be effective once reinstalled. If even one item is missed, the result is often a return shipment and a frustrated customer. Our goal is not only to perform the reset but to guarantee that your module remains clear and functional once it’s back in your vehicle.

MyAirbags’ Step-by-Step Pre-Reset Checklist

Before performing any reset, we follow a strict diagnostic sequence to ensure the module is truly ready. Each item on this list plays a direct role in determining whether the crash data is the only active fault. Ignoring any part can lead to misdiagnosis or wasted effort.

Here are the key items we examine during our intake and testing process:

Battery Voltage Stability

Battery voltage is one of the most overlooked components in pre-reset diagnostics. A vehicle’s battery must hold a consistent charge during SRS communication. If it doesn’t, diagnostic tools may fail to establish proper contact with the module.

Fluctuations in voltage can interrupt communication during memory clearing or data logging. This may corrupt data or lead to an incomplete reset. We always recommend verifying the battery condition before initiating a reset. At MyAirbags, we check for both resting voltage and load response to determine battery health.

Airbag Sensors and Wiring Harness Integrity

Sensors and harnesses form the communication backbone of your airbag system. If wires are cut, pinched, corroded, or unplugged, the module will not function correctly—even if reset.

Visual inspection is only the first step. We go further by using resistance testing to confirm proper circuit continuity between sensors and the control unit. High resistance or an open line indicates damage. We also verify connectors and pins for secure fit and no signs of oxidation.

Absence of Short or Open Circuits

Electrical shorts and open circuits are common culprits in failed resets. A reset may clear crash memory, but if the signal paths are broken or bridged, the module will immediately flag an error.

To detect these issues, we follow diagnostic flowcharts and electrical diagrams provided by OEMs. These help us isolate and validate every signal loop. Shorts may cause modules to power on inconsistently, while open circuits typically block sensor communication. Both must be resolved before attempting a reset.

Replacement of Deployed Components

Any component that was deployed in a crash—airbags, seatbelt pretensioners, inflators—must be replaced before we reset the module. A cleared module cannot communicate properly with deployed or missing components.

We’ve encountered many vehicles where resets failed solely because a blown seatbelt retractor was left in place. These components send fault signals to the SRS, overriding the reset. Our intake checklist ensures these issues are addressed before proceeding.

Crash Data is the Only Fault Confirmed by Scan Tool

Before clearing crash data, we connect the module to advanced scan tools to determine if any other DTCs are present. Our tools simulate vehicle communication to verify that the module is clear of hardware or software faults.

We only proceed with a reset if crash data is the only stored fault. If other issues are found, we notify the customer and advise corrections. This diagnostic discipline ensures that we never return a reset module that’s doomed to relock.

Case Study: Failed Reset Due to Missed Checklist Item

Real-world examples highlight why following the full diagnostic process matters. In this case, a customer sent us a reset airbag control module from a 2019 Ford F-150. The module had already been cleared by another shop.

Despite this, the vehicle still displayed a crash warning at startup. The owner assumed the module was faulty and prepared to purchase a new one. Before approving a replacement, we performed our own diagnostic review. Our findings changed the direction completely.

The Problem: Premature Reset on a 2019 Ford F-150

The airbag control module was sent to us after a prior reset attempt failed. The customer noted that the vehicle continued to display warning lights, and all airbags and pretensioners had already been replaced. No other repair work had been attempted.

At first glance, the module appeared to be functioning. However, because we never skip intake diagnostics, we ran a full system review. This step exposed something the previous shop missed entirely.

The Root Cause: Undetected Open Circuit in Side Airbag Sensor

Our technicians discovered an open circuit affecting the side airbag sensor wiring harness. This caused the SRS to perceive a missing or malfunctioning sensor. The fault was never related to the module itself.

We documented the open circuit and contacted the customer to explain our findings. After repairing the harness, we performed a secondary reset to verify everything was in working order. The SRS warning light cleared immediately after reinstallation.

The Outcome: Client Avoided Unnecessary Replacement

This case proves that reset failures often stem from peripheral problems. By identifying the actual root cause—a harness issue—the customer avoided buying a new module. Our systematic diagnostic approach saved both time and money.

The module remains fully operational today, and the customer now uses our services exclusively. Stories like this reinforce our commitment to proper process and thorough inspection every time.

Why MyAirbags Is the Trusted Name in Module Resets?

When it comes to safety systems, experience and precision matter. MyAirbags has spent over two decades mastering OEM-level airbag module resets and repairs. Our methods, tools, and diagnostic rigor exceed industry standards, which is why professionals and fleet managers turn to us.

We combine high-level technical expertise with an education-first approach. We don’t just repair modules—we empower our customers with knowledge and guidance to ensure their vehicles are restored safely.

Decades of Technical Experience

Our team consists of engineers, technicians, and diagnostic specialists with deep knowledge of automotive electronics. We’ve worked on tens of thousands of airbag modules from nearly every make and model.

Our procedures follow strict OEM specifications, and our facility is equipped with advanced scan tools, microcontroller programmers, and oscilloscopes. We don’t cut corners, and we never skip verification.

EEAT Alignment Through Transparency and Expertise

We align with Google’s EEAT principles—Experience, Expertise, Authority, and Trust—by being completely transparent. We publish our protocols, step-by-step guides, and case studies so that customers and technicians alike can understand our methods.

We want our clients to make informed decisions. That’s why we offer open forum discussions, online knowledge bases, and direct technician support. Education is central to everything we do.

Repair Backed by Diagnostic Rigor

Every airbag module we reset undergoes comprehensive before-and-after diagnostics. We validate every function using internal and external scan tools, simulate crash signals, and confirm data integrity with EEPROM comparisons. Our results are not based on assumptions—they’re proven by data. This commitment to verification allows us to confidently stand behind every service we provide.

Customer Feedback – Success Stories Backed by Process

We’re proud of our reputation, and even more proud that it’s built on consistent customer satisfaction. Hundreds of clients have reported better-than-expected outcomes, thanks to our thorough process.

They trust MyAirbags because we offer more than just a reset. We provide a complete diagnostic solution that prevents future problems and saves money.

7/24/2025

absolutely excellent service

 

-Sam W.

7/8/2025

Extremely helpful and very fast service. I have never installed airbags or replaced seatbelts before and they made it very easy with their great video for my Crosstrek.

 

-Chris

7/8/2025

Excellent and fast service, I don't have any problems and don't have any light on my dashboard, great service very professional.

 

-Guillermo

Consistently Rated as an Industry Leader

With an average rating of 4.9 or higher across review platforms, our reputation is built on performance. We’re known for clear communication, reliable delivery timelines, and unparalleled quality control.

When you send your module to us, you're not just getting a reset—you’re getting peace of mind. That’s why thousands of technicians and rebuilders rely on us.

What Happens at MyAirbags After You Send Your Module?

Understanding our internal process helps you see the value behind every reset. We don’t just plug in a scanner and clear codes. Instead, we follow a rigorous procedure based on the recommended "Steps to Install a New or Reset (ACM) Airbag Control Module." This ensures that your module is fully functional, safe, and ready for reintegration into your vehicle. We conduct a multi-phase service that verifies performance, clears only crash data, and ensures no residual errors remain. From the moment your module arrives, every action is tracked, tested, and validated. This structured approach reflects our deep commitment to safety, accuracy, and your satisfaction. 

Whether you’re a technician or a car owner, understanding these steps empowers you to take control of the reset process. Here’s how we do it.

Intake and Inspection

Every module is logged, labeled, and visually inspected upon arrival. We check for burned pins, missing components, water damage, and verify part numbers to match your vehicle.

Improper handling, bent pins, or previous tampering are flagged and communicated. We use this inspection to determine module eligibility for service.

Testing and Pre-Reset Diagnostics

Next, we connect the module to advanced scan tools to identify all current DTCs. If crash data is the only fault, we move forward. If other faults exist, we halt the reset and inform you immediately.

Our pre-reset diagnostics prevent wasted time and allow you to make repairs before continuing. This protects your investment and your safety.

Reset, Final Test, and Return

When the module is ready, we clear crash data at the EEPROM or microcontroller level. Then, we perform a final diagnostic scan to ensure all systems are operational.

Only after these checks do we package and ship your module back. We don’t just erase codes—we verify performance. For full SRS restoration, contact MyAirbags for seatbelt repair and airbag reset solutions.

Common Questions About Module Reset Preparation

Preparing for an airbag module reset can feel overwhelming, especially if you're not familiar with the intricate steps involved. Vehicle owners often wonder whether certain components must be replaced or if external issues might interfere with a successful reset. At MyAirbags, we regularly receive questions about what should be resolved before moving forward. We’ve gathered the most frequently asked questions and expanded on the answers to help you understand the process more thoroughly. The insights below are designed to ensure your reset goes smoothly and that you avoid preventable setbacks.

Do I need to replace deployed airbags before a reset? Yes, it is absolutely necessary to replace all deployed airbags and pretensioners before attempting a reset. When these components deploy in a crash, they send signals to the airbag control module, indicating a major safety event. If you attempt a reset while any deployed component remains in the vehicle, the module will detect a conflict and likely produce new fault codes or relock itself. This is a safeguard built into the system to ensure driver and passenger safety. Resetting alone does not override the presence of deployed or damaged hardware. That’s why we always recommend replacing seatbelt pretensioners, inflators, and all airbag units—driver, passenger, and side curtain—before shipping your module to MyAirbags. We also advise using a scan tool to confirm no deployment codes remain active. These steps ensure your module reset will be successful and the SRS system will be safe and functional after reinstallation.

What happens if the battery is unstable during the reset? An unstable or weak battery can cause serious issues during the reset process of your airbag control module. If the voltage drops or fluctuates while the module is being cleared, communication can fail between the scan tool and the module. Worse, this may lead to incomplete resets or data corruption within the module’s internal memory. We have seen cases where unstable voltage during EEPROM flashing resulted in modules becoming unusable. To prevent this, MyAirbags always checks for proper battery condition before initiating diagnostics or a reset. We test battery voltage under load and ensure it holds steady throughout the procedure. Using a battery stabilizer or power supply is often necessary for consistent results. A strong and steady power source is essential for the reset to complete successfully without introducing new issues.

Can MyAirbags help if I’m not sure what’s wrong? Yes, absolutely. MyAirbags offers expert diagnostic support for customers who are unsure whether their airbag module needs a reset or replacement. If your vehicle’s SRS light is on, but you’re not confident about the root cause, we can help. Our technicians will evaluate the module for crash data, hardware faults, and electrical anomalies using specialized tools and procedures. We don’t rely solely on code readers—we dig deeper with micro-level analysis of the module’s condition. Our process includes checking the circuit board, EEPROM data, and wiring integrity. Once we identify the problem, we’ll contact you with a detailed explanation and next steps. Whether it’s a reset, a repair, or additional part replacement, we’ll guide you toward the most cost-effective and safe solution. Trust our diagnostic team to eliminate the guesswork and get your vehicle back to OEM standards.

Trust the Final Step to the Experts

Resetting a crash-locked airbag module is the last, not the first, step in restoring your safety system. Skipping key pre-checks may result in failed resets, wasted money, and unresolved DTCs. At MyAirbags, we take the process seriously. We’ve built our business on getting it right the first time, every time. Our detailed diagnostics, thorough checklist, and transparent process ensure that your module is reset properly and ready for safe operation.

We encourage every vehicle owner, technician, and rebuilder to consult our experts before attempting a reset. Don’t risk your vehicle’s safety or spend on avoidable replacements. Contact MyAirbags today and let us walk you through our proven reset solutions.

Ready to Reset? Start with the Experts

If you're planning to reset your airbag module, do it the right way. Visit www.myairbags.com to begin your service request. Not sure if your module qualifies? Our team is available to walk you through the pre-check process. For airbag module resets, seatbelt repairs, and full SRS support, trust MyAirbags. Join our open forum for deeper technical discussions and expert answers to your most pressing airbag questions.