Resetting the engine light on your Honda Accord after an airbag replacement is essential to ensure your vehicle’s safety systems are functioning correctly. This guide walks you through the process using professional tools or manual methods, helping you avoid costly dealer visits and keep your car running safely.
Key Takeaways
- Understand the connection: The engine light may illuminate after an airbag change due to unresolved SRS (Supplemental Restraint System) codes, not engine issues.
- Use the right tools: An OBD2 scanner with SRS capability is required to properly reset the airbag and engine lights.
- Disconnect the battery safely: Always disconnect the negative terminal and wait 10–15 minutes before working on airbag systems to prevent accidental deployment.
- Clear codes correctly: Simply clearing engine codes won’t fix SRS warnings—target the airbag module specifically.
- Test drive after reset: Drive the car for 10–15 minutes to allow the system to relearn and confirm the light stays off.
- Seek professional help if needed: If the light returns, there may be a wiring issue or faulty sensor requiring expert diagnosis.
- Keep records: Document the repair and reset for future maintenance and resale value.
How to Reset Honda Accord Engine Light After Change Airbag
So, you’ve just replaced an airbag in your Honda Accord—great job! But now, the dreaded “Check Engine” light is on. Don’t panic. While it might seem like an engine problem, this light often comes on after airbag work because the car’s computer detects a change in the Supplemental Restraint System (SRS). The good news? You can reset it yourself with the right tools and steps.
In this guide, we’ll walk you through exactly how to reset the Honda Accord engine light after changing an airbag. Whether you’re a DIY enthusiast or just trying to save a trip to the dealership, this step-by-step tutorial will help you get your car back to normal safely and efficiently. We’ll cover everything from understanding why the light came on, to choosing the right tools, performing the reset, and troubleshooting if things don’t go as planned.
By the end of this guide, you’ll know how to confidently reset your Accord’s warning lights and ensure your vehicle’s safety systems are working properly.
Why Does the Engine Light Come On After an Airbag Change?
Before jumping into the reset process, it’s important to understand why the engine light appears after replacing an airbag. Many drivers assume it’s an engine issue, but in most cases, it’s related to the SRS—the network of sensors and modules that control airbags, seatbelt pretensioners, and crash detection.
When you remove or replace an airbag, the SRS module logs a fault code. Even if the new airbag is installed correctly, the system doesn’t automatically recognize it until the code is cleared. This triggers the engine light (and sometimes the SRS light) as a warning that something in the safety system needs attention.
Additionally, disconnecting the battery during the airbag replacement can cause the system to lose its learned settings. The car’s computer may interpret this as a malfunction, especially if the airbag clock spring or connectors weren’t reconnected properly.
It’s also possible that during the repair, a sensor was disturbed or a wire was damaged. The SRS is highly sensitive, and even a loose connection can trigger a warning.
So, while the engine light is on, your engine is likely fine. The real issue lies in the airbag system’s communication with the car’s computer. Resetting the system properly will clear these false alarms and restore normal operation.
Tools and Equipment You’ll Need
To reset the engine light after an airbag change, you’ll need more than just a basic OBD2 scanner. Most standard scanners can read and clear engine codes, but they often can’t access the SRS module. Here’s what you’ll need:
OBD2 Scanner with SRS Capability
This is the most important tool. Look for a scanner that specifically mentions “SRS,” “Airbag,” or “Supplemental Restraint System” functionality. Popular options include the Autel MaxiCOM MK808, Foxwell NT510, or BlueDriver Bluetooth Scanner. These devices can communicate with both the engine control module (ECM) and the SRS module.
Visual guide about How to Reset Honda Accord Engine Light After Change Airbag
Image source: enginepartsdiagram.com
Basic Hand Tools
You may need a socket wrench, screwdrivers, and trim removal tools if you’re rechecking connections. Even if the airbag is already installed, it’s wise to double-check that all connectors are secure.
Safety Gear
Always wear safety glasses and gloves when working near airbag components. Although the system should be deactivated, it’s better to be safe.
Vehicle Manual
Your Honda Accord owner’s manual or service manual can provide model-specific details, especially for older models (pre-2010).
Charged Smartphone or Tablet (Optional)
If you’re using a Bluetooth scanner like BlueDriver, make sure your device is charged and the app is installed.
Clean Cloth and Electrical Contact Cleaner
Use these to clean airbag connectors before reinserting them. Dirt or corrosion can cause communication errors.
Having the right tools ensures a smooth reset process and reduces the risk of further complications.
Step-by-Step Guide to Reset the Engine Light
Now that you understand the cause and have the tools ready, let’s go through the reset process step by step. Follow these instructions carefully to avoid damaging your vehicle’s electronics.
Step 1: Ensure the Airbag Is Properly Installed
Before resetting anything, double-check that the new airbag is correctly installed. Make sure:
- The airbag module is securely bolted in place.
- All electrical connectors are fully seated and locked.
- The clock spring (if applicable) is aligned correctly—this is crucial for steering wheel airbags.
- No wires are pinched or damaged.
If anything looks loose or misaligned, fix it now. A faulty installation will cause the light to return even after a reset.
Step 2: Disconnect the Battery (Safety First)
Even though the airbag is already replaced, it’s wise to disconnect the battery before working with the SRS system. This prevents accidental deployment or electrical shorts.
- Turn off the ignition and remove the key.
- Locate the negative terminal on the battery (marked with a “-”).
- Use a wrench to loosen the clamp and remove the negative cable.
- Tuck the cable away so it doesn’t touch the terminal.
- Wait at least 10–15 minutes. This allows the SRS system’s backup power to drain completely.
Never skip this step—airbags can deploy unexpectedly if power is still present.
Step 3: Reconnect the Battery
After waiting, reconnect the negative battery cable and tighten it securely. Make sure the connection is clean and tight to ensure proper electrical flow.
Step 4: Turn On the Ignition (Do Not Start the Engine)
Turn the key to the “ON” position (second click). This powers up the vehicle’s electronics without starting the engine. You should see the dashboard lights illuminate, including the engine and SRS lights.
Leave the ignition on for about 30 seconds. This allows the SRS module to initialize and communicate with the scanner.
Step 5: Connect the OBD2 Scanner
Locate the OBD2 port—usually under the dashboard on the driver’s side, near the steering column. Plug in your scanner.
If using a Bluetooth scanner, open the app on your phone and pair it with the device.
Step 6: Access the SRS Module
Turn on the scanner and follow the menu prompts. Look for options like:
- “SRS” or “Airbag”
- “Supplemental Restraint System”
- “Clear Codes” or “Erase Faults”
Select the SRS module. The scanner will communicate with the airbag computer and display any stored fault codes.
Step 7: Read and Clear the Codes
The scanner will show one or more codes related to the airbag system. Common ones include:
- B0100 – Driver Airbag Circuit
- B0101 – Passenger Airbag Circuit
- B1000 – Internal SRS Module Fault
Note the codes for reference, then select “Clear Codes” or “Erase Faults.” Confirm the action when prompted.
The scanner will send a signal to reset the SRS module. Wait for a confirmation message like “Codes Cleared” or “Reset Successful.”
Step 8: Check the Dashboard
After clearing the codes, turn the ignition off and then back on. Observe the dashboard:
- The engine light should turn off.
- The SRS light may blink a few times, then turn off.
If both lights stay off, the reset was successful.
Step 9: Start the Engine and Test Drive
Start the engine and let it idle for a minute. Then, take the car for a short test drive—about 10–15 minutes. This allows the system to relearn sensor data and confirm everything is working.
During the drive, pay attention to:
- Any warning lights that reappear.
- Unusual noises from the airbag area.
- Steering wheel alignment (if you worked on the driver’s airbag).
If the lights stay off and the car drives normally, you’re all set!
Alternative Method: Manual Reset (Limited Effectiveness)
Some older Honda Accord models (pre-2008) may allow a basic reset using the ignition cycle method. However, this only works for minor glitches and won’t clear SRS codes. Use it only if you don’t have a scanner.
Steps for Manual Reset
- Turn the ignition to “ON” for 3 seconds.
- Turn it off for 3 seconds.
- Repeat this cycle 5 times.
- On the 6th time, leave the ignition on.
- The SRS light should blink, then turn off.
This method is unreliable and not recommended for post-airbag replacement resets. Always use a scanner for best results.
Troubleshooting Common Issues
Even with careful steps, you might run into problems. Here’s how to handle the most common issues:
The Engine Light Comes Back On
If the light returns after a reset, the issue isn’t resolved. Possible causes:
- A faulty airbag sensor or clock spring.
- Loose or corroded connectors.
- A damaged wiring harness behind the airbag.
- A defective SRS module.
Use your scanner to read the new codes. If the same code appears, inspect the related component. For example, a B0100 code points to the driver’s airbag circuit—check the wiring under the seat and steering column.
The SRS Light Stays On
The SRS light is separate from the engine light but often appears together. If it stays on, the airbag system still detects a fault. Recheck all connections and ensure the airbag is the correct part for your model and year.
Some aftermarket airbags aren’t compatible with Honda’s system. Always use OEM or certified replacement parts.
Scanner Can’t Access the SRS Module
If your scanner says “No Communication” or “Module Not Found,” try:
- Checking the OBD2 port for dirt or damage.
- Ensuring the ignition is on.
- Updating the scanner’s software.
- Using a different scanner with confirmed SRS capability.
Cheap scanners often lack full SRS access. Invest in a quality tool if you plan to work on your car regularly.
Airbag Light Blinks in a Pattern
Some Honda models use a blinking pattern to indicate specific faults. For example, two long blinks followed by three short blinks might mean a passenger airbag issue. Refer to your service manual or search online for “Honda SRS blink code [your model year]” to decode it.
Battery Drain or Electrical Issues
If the car won’t start or electronics behave oddly after the reset, the battery may have been drained during the repair. Recharge or replace the battery if needed. Also, check fuses related to the SRS system (usually labeled “SRS” or “Airbag” in the fuse box).
When to See a Professional
While many airbag-related resets can be done at home, some situations require a certified technician:
- The SRS light won’t turn off after multiple resets.
- You suspect a wiring harness is damaged.
- The airbag deployed accidentally during installation.
- You’re uncomfortable working with safety systems.
Dealerships and specialized auto shops have advanced diagnostic tools and access to Honda’s technical service bulletins. They can also perform a full system scan and recalibration if needed.
Remember: Airbags are life-saving devices. If you’re unsure, it’s always safer to get professional help.
Tips for a Successful Reset
To make the process smoother and avoid repeat issues, keep these tips in mind:
- Use OEM parts: Aftermarket airbags may not communicate properly with Honda’s system.
- Work in a clean, dry area: Moisture and dirt can cause electrical faults.
- Take photos before disconnecting: This helps you remember how wires and connectors were routed.
- Don’t rush: Airbag work requires precision. Double-check every step.
- Keep your scanner updated: Manufacturers release updates to improve compatibility.
- Document everything: Note the date, parts used, and codes cleared for future reference.
Conclusion
Resetting the Honda Accord engine light after changing an airbag is a common but often misunderstood task. While the light may seem alarming, it’s usually just the car’s way of saying the SRS system needs attention. With the right OBD2 scanner and careful steps, you can clear the codes and restore normal operation without visiting a dealership.
Remember, safety comes first. Always disconnect the battery, use proper tools, and double-check your work. If the light returns or you encounter persistent issues, don’t hesitate to consult a professional.
By following this guide, you’ve not only saved money but also gained valuable knowledge about your vehicle’s safety systems. Keep your scanner handy—you never know when it might come in handy for future repairs.
Drive safe, and enjoy your Honda Accord with peace of mind!