Airbag control unit with part number 95861820102

What is the function of the airbag control unit 95861820102?

The airbag control unit 95861820102 is the central control module for the passive safety system in the Porsche Cayenne of the 958 series. It is responsible for analyzing sensor data and precisely triggering airbags and seatbelt pretensioners. After a crash, it locks itself by storing crash data.

As an original Porsche part, this control unit is the critical component that processes data from acceleration and yaw rate sensors in real time. In the event of a collision, it determines within milliseconds which restraint systems need to be activated to provide optimal occupant protection.

An additional core function is the continuous storage of accident-relevant data, known as crash data. Following a crash, this feature intentionally locks the unit to prevent reuse without professional inspection and repair.

Why does the control unit 95861820102 fail?

The most common cause of failure is deliberate locking due to stored crash data after an accident. This lock disables the entire airbag system. Other defects may arise from internal electronic malfunctions that prevent communication with the vehicle or diagnostic tools.

Storing crash data is not a defect in the traditional sense but rather a manufacturer‑specified safety measure. Once airbags or seatbelt pretensioners have been deployed, an entry is written into the control unit’s memory that cannot be erased using standard workshop scanners. The unit is then considered “locked” and must be professionally reset.

In addition, internal hardware faults on the circuit board can occur. These often result in total failure, rendering the control unit unresponsive and permanently logging error codes such as “internal error” (e.g., error code 1739). A thorough diagnosis at a specialized workshop is therefore essential to confirm whether the issue truly lies within the control unit itself.

How do you recognize a fault in the 95861820102?

A fault typically manifests as a continuously illuminated or flashing airbag warning light on the dashboard. Another clear indication is when the control unit becomes unreachable via the OBD interface, preventing diagnostic tools from establishing a connection. Specific error codes also point to a problem.

The most obvious symptom is the active airbag warning light. It fails to extinguish after starting the vehicle, signaling a malfunction in the restraint system that requires immediate attention.

Another frequent sign is the lack of communication: the workshop cannot read the control unit to check its fault memory, complicating diagnosis. The unit does not respond to requests from diagnostic equipment.

In rarer cases, accompanying symptoms may appear, such as a flashing engine check light or a specific fault in the driver’s airbag circuit, even though all other system components remain intact.

In which vehicles is the control unit 95861820102 installed?

This specific airbag control unit with part number 95861820102 is exclusively used in the Porsche Cayenne 958 series. Its compatibility covers the entire production period from 2010 to 2017, including the facelift model and various engine options.

At Airbag24, we repair part number 95861820102 for the following Porsche Cayenne models:

Porsche Cayenne 958 (model years 2010–2014)

Porsche Cayenne 958 Facelift (model years 2014–2017)

Porsche Cayenne S 958

Porsche Cayenne Diesel 958

Porsche Cayenne S Diesel 958

Is repairing the 95861820102 worthwhile?

Yes, repair is the most economical and technically sensible solution. Compared to purchasing a new part from Porsche, you can save up to €800. The repaired control unit is immediately fully functional and, unlike used parts, does not require time-consuming re‑coding.

The biggest advantage is cost savings. A new control unit is an expensive original part, whereas repair costs only a fraction of that while restoring full safety.

Another key benefit is the plug-and-play nature of the repair. The unit is returned with the vehicle’s original configuration and simply needs to be reinstalled. By contrast, used replacement parts often require costly and time‑consuming adjustments to fit the vehicle.

Repair is also a sustainable solution, preserving valuable electronic components. With 2 years' statutory liability for defects on the work performed, you take no risks either.

How does the repair of 95861820102 work at Airbag24?

The repair process at Airbag24 is designed for maximum efficiency and safety. After you send us your removed unit, our technicians perform an initial inspection, erase crash data, fix internal faults, and return the tested, fully functional control unit to you—plug-and-play ready.

First, a qualified workshop should clearly identify the fault as originating from the airbag control unit. Following proper removal, please pack the unit securely for shipping and send it to us.

Upon arrival at Airbag24, the control unit undergoes a thorough analysis. The core task of the repair is to reset the stored crash data at the hardware level and resolve any electronic defects on the circuit board.

After successful restoration, a comprehensive functionality test is conducted. We ensure that the control unit communicates flawlessly again and that all functions operate correctly. It is then prepared for return shipment, with 2 years' statutory liability for defects provided on every repair.