Airbag control unit with part number 98515-5RL8A

What is the function of the airbag control unit 98515-5RL8A?

The airbag control unit with part number 98515-5RL8A is the central control module for the entire occupant safety system (SRS) in the Nissan Kicks P15. It analyzes data from crash sensors and, within milliseconds, determines whether to deploy airbags and seatbelt pretensioners, providing optimal protection for occupants in the event of a collision.

Serving as the brain of the passive safety system, this control unit continuously monitors all connected components, including various airbags (driver, knee, etc.), seatbelt pretensioners, and acceleration and pressure sensors distributed throughout the vehicle. Upon impact, it processes these signals and activates the appropriate restraint systems at precisely the right moment.

This is an original Nissan replacement part, specifically engineered for the electronic architecture of the Nissan Kicks P15 (2016–2024), essential for the proper functioning of the entire safety system.

Why does the control unit 98515-5RL8A fail?

The most common cause of failure for the control unit 98515-5RL8A is stored crash data following an accident, which locks the device. Other reasons include internal hardware defects leading to complete communication failure, as well as external factors such as water damage, short circuits, or issues with the CAN bus.

After deploying airbags or seatbelt pretensioners, the control unit stores so‑called crash data—a manufacturer‑imposed safety measure designed to prevent operation of a potentially compromised system. This data cannot be erased using standard workshop diagnostic tools and results in internal error codes such as B1000, B1427‑55, or other B1XXX/U1XXX codes.

A further frequent defect is an internal hardware failure on the circuit board, rendering the control unit unresponsive and unable to communicate with diagnostic equipment. Workshops then receive messages like “No communication with airbag control unit” or “Control unit defective.”

In addition, external influences can also cause failure, including water damage leading to corrosion, short circuits in the vehicle’s electrical system, reverse polarity during jump-starts, or mechanical defects at the CAN bus connector pins.

This control unit is technically related to or interchangeable with part numbers 98515-5RW8A, 98515-5RW1A, and 98820-5RX0B. Similar fault patterns occur in these variants as well.

How do you recognize a defect in the airbag control unit 98515-5RL8A?

A defect in the control unit 98515-5RL8A is primarily indicated by a permanently illuminated or flashing airbag warning light (SRS lamp) on the dashboard. Another clear sign is when the workshop’s diagnostic tool cannot establish communication with the control unit, or error codes such as B1000 or “internal error” are read out.

The most obvious symptom for the driver is the active airbag warning light, which fails to extinguish after starting the vehicle as usual, signaling a malfunction in the safety system. This suggests that airbags may not deploy in the event of a crash.

In professional workshops, the defect often manifests as a loss of communication: the control unit becomes unreachable via the OBD interface. Diagnostic tools from Bosch, Gutmann, or manufacturer‑specific testers cannot establish a connection, hindering further troubleshooting within the system.

If partial communication remains possible, specific error codes are frequently logged in the fault memory—typically entries directly pointing to an internal defect in the control unit that cannot be cleared.

In which vehicles is the control unit 98515-5RL8A installed?

The airbag control unit 98515-5RL8A, along with its compatible variants, is specifically designed for the Nissan Kicks P15 model series. Airbag24’s repair services cover both the first generation (2016–2020) and the facelifted model (from 2020 onward) of this vehicle.

At Airbag24, we repair the control unit with part number 98515-5RL8A for the following models:

Nissan Kicks (P15 series) (model years 2016–2020)

Nissan Kicks (P15 series facelift) (model years 2020–2024)

Our service also includes repairs of identical control units bearing part numbers 98515-5RW8A, 98515-5RW1A, and 98820-5RX0B, which may be used in the same vehicle models.

How is the control unit 98515-5RL8A professionally repaired?

In a professional repair process, the control unit 98515-5RL8A is first analyzed using advanced testing equipment to pinpoint the exact cause of the fault. Defective components, such as chips or capacitors, are then replaced, stored crash data is erased, and the unit undergoes a comprehensive functional test. A 12‑month warranty is provided on the repair.

After being sent to Airbag24, each control unit undergoes a standardized repair process. First, an incoming inspection is performed to verify the fault described by the customer. It is helpful if you include a diagnostic report from your workshop with the shipment.

The next step involves component-level repair. Rather than replacing the entire unit, our technicians identify and replace only the defective components on the circuit board. Stored crash data is completely and irreversibly erased from the memory chip, restoring the control unit to its original factory condition.

Finally, each repaired control unit is tested on a test bench to ensure flawless operation across all functions. Upon return shipping, the device is immediately ready for installation (plug-and-play), fully restoring the airbag system’s functionality. We provide a 12-month warranty on every repair.

What shipping options does Airbag24 offer?

You can either ship your control unit to Airbag24 yourself or arrange a convenient UPS pickup. Return shipping is standardly free via UPS Standard. For an additional fee, faster UPS Express deliveries are available, and cash-on-delivery is also possible for both shipping methods. Self-collection is another option.

For outbound shipping, you have two choices: securely pack the removed control unit and send it to us at your own expense, or use the paid UPS pickup service, which collects the package from a location of your choosing.

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

Free UPS Standard shipping (1–3 business days delivery)

UPS Express shipping (1–2 business days delivery)

UPS Standard shipping with cash-on-delivery (1–3 business days delivery)

UPS Express shipping with cash-on-delivery (1–2 business days delivery)

In addition, personal collection at our workshop is also available.

Is repairing the 98515-5RL8A control unit worthwhile?

Yes, repair is highly cost-effective. Compared to a new part, which often costs over €500, refurbishment delivers substantial savings. The repaired control unit is fully functional, cleared of crash data, and backed by a 12-month warranty.

The biggest advantage is the cost savings. A new manufacturer‑supplied control unit can range from €500 to €1,000 depending on the model. Repair offers a significantly more affordable alternative without compromising safety or functionality.

A repaired control unit is functionally equivalent to a new one. All safety‑critical data and functions are fully restored. In particular, erasing crash data ensures the system is once again fully operational.

Repair is also a sustainable solution. Instead of disposing of a complex electronic assembly, targeted replacement of individual parts conserves resources and reduces electronic waste. The 12-month warranty on the work performed provides you with added peace of mind.