Airbag control unit with part number 95700-2B110

What is the function of the airbag control unit 95700-2B110?

The airbag control unit with part number 95700-2B110 is the central control module for the occupant restraint system (SRS) in Hyundai Santa Fe models of the CM and DM series. It processes sensor signals to deploy airbags and pretensioners in the event of a crash and monitors system safety.

As the brain of the passive safety system, this control unit is responsible for evaluating data from acceleration and angular velocity sensors in real time. If it detects a collision strong enough, it sends ignition commands to the relevant airbags and seatbelt pretensioners within milliseconds.

A failure of this component is critical, as it can lead to complete deactivation of the entire airbag system. This poses a significant safety risk, making immediate inspection at a specialized workshop essential if any signs of malfunction appear.

Why does the airbag control unit 95700-2B110 fail?

The most common cause of failure for control unit 95700-2B110 is the storage of crash data after an accident, which triggers an electronic lock. Other defects arise from internal hardware issues, such as components damaged by moisture, heat, or aging.

After a collision in which the airbags have deployed, the unit permanently stores the crash data. This is a manufacturer‑imposed safety measure that locks the control unit, preventing further use without professional repair. The system then reports a permanent fault.

In addition to stored crash data, physical factors can also cause failure. Penetrating moisture may lead to corrosion on the circuit board, while excessive heat inside the vehicle can damage sensitive electronic components like processors or memory chips. Such hardware faults often manifest as the error code “internal fault.”

How do you recognize a defect in control unit 95700-2B110?

A defect in control unit 95700-2B110 primarily shows up as a continuously illuminated or flashing SRS warning light on the dashboard. Often, the control unit can no longer be accessed by a diagnostic tool, or unerasable error codes such as “internal fault” or “crash data stored” are displayed.

The most noticeable and definitive symptom is the airbag warning light (SRS light), which fails to turn off after the engine starts. This alerts the driver that the restraint system is inoperative and will not deploy in the event of a crash.

In the workshop, a defect is often evident when communication between the diagnostic tool and the airbag control unit cannot be established. The unit is reported as “unreachable” during vehicle diagnostics, indicating a serious internal fault.

If error codes can be read, they are typically permanent entries that cannot be cleared. Common messages include indications of an internal control unit fault or explicit references to stored crash data, which result in system deactivation.

In rarer cases, other electronic malfunctions—such as the failure of clock or display functions under heat—may also point to a defect in the control unit, as the device’s electronics are compromised.

In which vehicles is control unit 95700-2B110 installed?

The airbag control unit with part number 95700-2B110 was specifically developed for various model generations of the Hyundai Santa Fe. Its compatibility covers the CM and DM series produced between 2006 and 2018, including all facelifted variants.

At Airbag24, we repair part number 95700-2B110 for the following Hyundai models and series:

Hyundai Santa Fe (CM series, model years 2006–2009)

Hyundai Santa Fe (CM series facelift, model years 2009–2012)

Hyundai Santa Fe (DM series, model years 2012–2015)

Hyundai Santa Fe (DM series facelift, model years 2015–2018)

How is the repair of control unit 95700-2B110 carried out?

Professional repair of control unit 95700-2B110 involves detailed electronic analysis, targeted replacement of defective components, and safe resetting of stored crash data. Following successful restoration and a functional test, the unit is fully operational again.

It is recommended to have a fault diagnosis performed at a specialized workshop before removing the control unit, to confirm that the issue truly lies within the unit itself. The control unit is typically located beneath the dashboard, near the center console.

After sending the unit to Airbag24, a systematic examination is conducted using state-of-the-art diagnostic equipment. Our technicians identify the exact cause of the fault, whether it is a defective component on the circuit board or a lock caused by crash data.

Subsequently, the repair is carried out by qualified technicians. Only defective components are replaced, and any stored crash data is professionally erased. Unlike a costly new purchase, the original vehicle coding is preserved, eliminating the need for time-consuming reprogramming.

Finally, each repaired control unit undergoes a comprehensive functional test to ensure proper operation. We provide a 12-month warranty on all repairs.

What shipping options does Airbag24 offer?

Airbag24 provides flexible and secure shipping solutions for your control unit. You can either send the package yourself or arrange a convenient UPS pickup. For returns, we offer free standard shipping as well as faster express options, including cash-on-delivery.

For sending the unit to us, you have two choices: you can pack the removed control unit securely and ship it to us, or use our paid UPS pickup service, which collects the package from a location of your choice.

For returning the repaired control unit, we offer the following options:

UPS Standard Shipping (free)

UPS Express Shipping

UPS Standard Shipping with Cash-on-Delivery

UPS Express Shipping with Cash-on-Delivery

In addition, you may choose to pick up the unit in person after the repair is completed.