Mechanic Wiki: How to Reset Airbag SRS on Hyundai Eon: Step-by-Step Guide (2026)

Learn how to reset the SRS airbag light on your Hyundai Eon. Step-by-step guide with OBD2 scanner, battery disconnect, and troubleshooting tips. Diagnose before resetting for safety.

Last Updated: June 26, 2026

Quick Answer

If the SRS light stays on in your Hyundai Eon, the most reliable way to reset it is to use an OBD2 scanner that supports airbag (SRS) systems to read and clear the fault codes. Disconnecting the battery for 15–30 minutes may temporarily turn off the light for intermittent faults, but it won’t permanently resolve stored codes. Always diagnose the root cause — such as a faulty clock spring, loose seat connectors, or low battery voltage — before attempting a reset.

Why the Airbag SRS Light Comes On

The SRS (Supplemental Restraint System) light is your car’s way of telling you something is wrong with the airbag system. On a Hyundai Eon, the light can illuminate for several reasons:

Low battery voltage – A weak battery can cause false readings in the SRS module.
Accidental trigger – Even a minor bump can set off a crash sensor.
Clock spring failure – The spiral cable behind the steering wheel often wears out.
Seat belt buckle sensor fault – The Eon’s seat belt pretensioner circuit can develop an intermittent break.
Passenger seat occupancy sensor – Wiring under the seat gets pinched or disconnected.
After an accident – The SRS module may lock down and require replacement.

It helps to understand the difference between a hard fault (needs repair – the light will not go away until the part is fixed) and an intermittent fault (can sometimes be cleared after the condition resolves). If your light came on after a jump start or battery change, a simple reset might work. If it came on during a turn and stays on, suspect the clock spring.

Important Safety Warnings

Before you touch anything related to the airbag system, read this carefully:

Never reset the SRS light without diagnosing the cause. You may think the problem is gone, but the airbags might not deploy in a crash.
Always disconnect the negative battery terminal and wait at least 15 minutes before working near airbag components, connectors, or the steering wheel. This allows the backup capacitor in the SRS module to discharge.
Do not use a test light or multimeter to probe airbag connector pins unless you are absolutely sure of what you are doing. Accidentally shorting a pin can deploy the airbag.
Keep the airbag module facing away from you when handling it.

The Hyundai Eon uses a single-stage driver airbag and a passenger airbag, both of which contain pyrotechnic charges. Treat them with respect.

Tools You’ll Need

Tool	Purpose
OBD2 scanner with SRS/airbag capability	Read and clear fault codes (generic code readers won’t work)
Automotive multimeter (optional)	Check voltage at connectors and test for continuity
Basic hand tools (socket set, trim removal tool)	Access connectors under seats or behind steering wheel

If you don’t own an SRS-capable scanner, you can borrow one from an auto parts store or visit a shop. A Hyundai‑specific scan tool like a Launch X431 or Autel MaxiSys is ideal, but many affordable aftermarket scanners now support SRS functions.

Step-by-Step Guide: How to Reset Airbag SRS on Hyundai Eon

Follow these steps in order. Do not skip the diagnostic step – it saves time and prevents repeated failures.

1. Diagnose the Fault Code First

Connect your OBD2 scanner to the diagnostic port, located under the driver’s side dashboard near the fuse box (16‑pin connector). Turn the ignition to the ON position (engine off). Navigate to the “Airbag” or “SRS” system on the scanner. Read the stored codes.

Common codes on the Hyundai Eon include:

B1328 – Driver airbag circuit resistance low (clock spring issue)
B1346 – Driver side airbag (frontal) circuit malfunction
B1347 – Passenger side airbag circuit malfunction
B1620 – Passenger seat belt buckle sensor
B1650 – Passenger occupancy sensor

Write down each code. Some scanners also show a description. This tells you exactly where to look.

2. Clear the Codes with a Scanner

After noting the codes, select “Clear Codes” or “Reset SRS” from the menu. The scanner will send a command to the SRS module to erase the fault memory. Turn the ignition off, wait 10 seconds, then turn it back on. If the light stays off, congratulations – you’ve successfully reset the airbag SRS on your Hyundai Eon.

If the light comes back immediately, you have a hard fault that needs repair.

3. Manual Reset via Battery Disconnect (Temporary)

If you don’t have a scanner, you can try disconnecting the battery. This method often fails to clear stored fault codes permanently, but it may reset the module for intermittent voltage-related faults.

Disconnect the negative battery terminal using a 10mm socket.
Wait 30 minutes to allow the SRS module’s capacitor to fully drain.
Reconnect the terminal, ensuring a clean and tight connection.
Start the car and check the SRS light.

Note: Some Hyundai Eon models require the ignition to be turned to ON and then OFF three times in succession for a manual reset to take effect. You can try this after reconnecting the battery: turn the key to ON (engine off), wait 5 seconds, turn OFF, repeat three times, then start the engine.

4. Inspect and Secure All SRS-Related Connectors

If the light returned or you want to be thorough, inspect every connector in the airbag circuit. Common trouble spots on the Eon:

Under the driver’s seat – The yellow SRS connector for the seat belt buckle and seat track sensor. Move the seat fully forward and back and check the wiring for pinching.
Under the passenger seat – The occupancy sensor connector. If you frequently fold down the rear seat or slide the passenger seat, this wiring can loosen.
Behind the steering wheel – The clock spring connector. You’ll need to remove the upper steering column shroud (two screws) to access it.

Disconnect each yellow connector, inspect for corrosion or bent pins, then push it back together firmly until you hear the locking tab click.

5. Recheck and Repeat if Needed

After clearing codes and securing connectors, take the Eon for a short test drive (2–3 miles) with several turns and stops. If the SRS light stays off, the reset was successful. If it comes back on, you have a persistent fault that requires component replacement.

Troubleshooting: Why the Reset Doesn’t Work

No Scanner Available?

You might have heard about “bridging pins 4 and 12 on the OBD2 port” to manually reset SRS on some Hyundai models. Do not try this on the Hyundai Eon. Bridging those pins can short the airbag circuit and cause accidental deployment. It is not a recommended or safe method.

Instead, visit a mechanic who has a professional scanner. Many shops charge a minimal fee for a quick code clear.

Light Comes Back Immediately

Check these common offenders in order:

Clock spring – If the light returns when you turn the steering wheel, the clock spring is likely broken. Replacement costs around $40–$80 for the part plus labor.
Passenger seat occupancy sensor – If the light appears only when someone sits in the passenger seat, the sensor mat or its wiring is damaged.
Crash sensor – Even a small fender bender can trip the front crash sensor. You’ll need to replace it and then clear the codes.

Inspect wiring near seat rails for visible damage. A chafed wire that shorts to ground will cause a continuous fault.

After an Accident

Even minor collisions can trigger the SRS module’s “crash lockout” mode. On some Hyundai Eon models, the module must be replaced or sent out for resetting. After replacement, dealer-level calibration may be required to synchronize the module with the vehicle’s VIN and sensors. A simple code clear won’t work if the module is locked.

Preventive Maintenance to Avoid Future SRS Alerts

Keep your battery healthy – Low voltage is one of the most common triggers. Have your battery tested if you notice slow cranking.
Avoid moving seats aggressively – Slide seats slowly to prevent snagging wiring under the rails.
Inspect the clock spring during steering wheel work – If you replace the horn switch or audio controls, ask your mechanic to check the clock spring for continuity.
Clean battery terminals – Corrosion can cause voltage fluctuations that upset the SRS module.

Following these simple habits can prevent many intermittent airbag faults from appearing in the first place.

Frequently Asked Questions (FAQ)

Can I reset the SRS light on my Hyundai Eon without a scanner?

You can try disconnecting the battery for 30 minutes, but this often fails to clear stored codes. A scanner that supports SRS is the only reliable method.

Is it safe to drive with the SRS light on?

No. The airbags may not deploy in a crash. You risk serious injury. Have the system diagnosed and repaired as soon as possible.

How much does it cost to reset the airbag light at a shop?

Expect $50–$100 for diagnosis and code clearing. Replacing faulty parts like the clock spring or seat sensor adds another $100–$300 depending on labor.

Will disconnecting the battery reset the SRS system permanently?

Only if the fault was temporary, such as a low battery voltage spike. Most faults require repair before they can be cleared permanently.

What does the flashing SRS light mean on Hyundai Eon?

A flashing SRS light indicates a malfunction that needs immediate attention. Do not rely on a simple reset – have the system diagnosed properly.

Can I use the same OBD2 scanner for engine and airbag codes?

Only if your scanner explicitly supports SRS/airbag systems. Generic code readers (like basic ELM327 copies) usually cannot read airbag codes.

How do I find the diagnostic port on Hyundai Eon?

It is located under the driver’s side dashboard, near the fuse box. It is a 16‑pin OBD2 connector, often covered by a small plastic flap.

After replacing the clock spring, do I need to reset the SRS?

Yes. The code will remain stored even with a new clock spring. You must clear the fault codes with a scanner to turn off the light.

Is there a fuse for the SRS system?

Yes, but pulling the fuse does not reset the light – it only disables the system. The SRS light will still illuminate. Always check your owner’s manual for the exact fuse location.

What if the SRS light stays on after reset?

You have an underlying issue – possible a faulty module, damaged wiring, or a crash sensor. Professional diagnosis is required. Do not ignore it.

About the Author: Erwin Salarda is an Automotive Service Equipment Technician based in the Philippines, specializing in computerized automotive diagnostic equipment such as OBD scanners and wheel alignment systems. Since 2012, he has been actively providing technical support, equipment installation, troubleshooting, after-sales service, and hands-on training for automotive service equipment used by workshops and automotive professionals.

He has received specialized training from international suppliers and manufacturers, including Launch X431 in Shenzhen, China, Lawrence Engineering Company in Guangzhou, China, and 3Excel Wheel Alignment Company in Shenzhen, China. Through these trainings, he developed advanced expertise in automotive diagnostics, calibration, wheel alignment systems, and computerized automotive service technologies.

Erwin Salarda provides professional after-sales support and technical training for automotive diagnostic and wheel alignment equipment, helping clients maximize the performance and proper use of their tools and systems. His experience covers equipment setup, software updates, calibration procedures, troubleshooting, and operational guidance for automotive workshops and service centers.

With more than a decade of experience in the automotive equipment industry, Erwin Salarda continues to support automotive businesses by delivering reliable technical expertise and practical training solutions.

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