00595 - - Crash data stored airbag control unit fault

What does error code 00595 mean?

Error code 00595, “Crash data stored,” indicates that the airbag control unit has permanently saved relevant crash data after an accident. This is a safety feature that locks the system to prevent malfunction following a crash. The control unit is blocked and cannot be reset using conventional diagnostic tools.

Technically, this error means that the control unit’s internal memory has activated a “crash lock.” The stored data documents the exact sequence of events that triggered the safety systems, such as the airbags and seatbelt pretensioners.

As long as this data remains in memory, the airbag warning light stays illuminated, and the entire airbag system remains inoperative. Simply clearing the fault memory is not intended by the manufacturer and is therefore ineffective.

How can you recognize error code 00595?

The primary symptom of error code 00595 is a continuously illuminated airbag warning light on the instrument panel, which does not turn off even after a restart. When reading the fault memory, code 00595 appears as a non‑erasable, permanent error.

Even after an accident—when visible damage has been repaired and the airbags replaced—the warning light remains on due to the stored crash data.

This signals that the passive safety system is not operational until the affected control unit is professionally reset or replaced.

Why does error code 00595 occur?

The sole cause of error code 00595 is the recording of an accident by the airbag control unit. Sensors detected a collision that triggered the airbags or seatbelt pretensioners, or exceeded a predefined activation threshold. As a result, the crash data is irreversibly stored in memory.

This process is a manufacturer‑implemented safety measure. The control unit is deliberately locked to ensure it undergoes thorough inspection and professional reactivation after a potentially damaging event.

Therefore, the error does not arise from a component defect but rather represents an intentional, irreversible system function following a crash—an action that can only be reversed through specialized procedures.

In which models does error code 00595 frequently occur?

Error code 00595 is particularly common in vehicles from the Volkswagen Group. Models such as the VW Transporter T4, Multivan T4, and T5 are often affected. Airbag24 provides repair services for these and other models equipped with the corresponding control units.

At Airbag24, error code 00595 is repaired for a wide range of Volkswagen models, including:

Volkswagen Multivan T4 (model years 1990–2003)

Volkswagen Transporter T4 (model years 1990–2003)

Volkswagen Caravelle T4 (model years 1990–2003)

Volkswagen Multivan T5 and Transporter T5 (model years 2003–2015), including the T5 facelift (2009–2015).

Control units with part numbers such as 6N0 909 603 E or 1J0 909 605 are frequently affected, for which specialized repair represents the most cost‑effective solution.

How is error code 00595 professionally repaired?

A professional repair of error code 00595 requires removing the airbag control unit. At Airbag24, technicians use specialized software to directly access the memory chip, permanently erase the stored crash data, and restore the device to its factory settings.

Upon submission to Airbag24, the control unit is first thoroughly analyzed. This is followed by the core repair step: precisely erasing the crash data records from the internal memory. This process fully restores the device’s functionality.

In addition, the control unit’s hardware is inspected for any secondary damage caused by the accident, such as short circuits or moisture. After successful resetting and a final test, the control unit is once again fully operational.

Following reinstallation in the vehicle, the vehicle’s fault memory typically needs to be cleared once using a standard diagnostic tool to reinitialize the system. We provide 2 years' statutory liability for defects on the repair.

Is repairing error code 00595 worthwhile?

Yes, repairing an airbag control unit with error code 00595 is both economically and technically sensible compared to the costly purchase of a new unit. Not only do you save significantly, but you also act more sustainably by reusing an otherwise intact component.

The cost of a new control unit from the manufacturer often ranges between 400 and 500 euros. Repairing by erasing the crash data is usually considerably cheaper and offers substantial savings.

A repaired control unit is technically equivalent to a new one, as its original functionality is fully restored. After installation, it is immediately ready for use, ensures the airbag warning light goes off, and resumes system monitoring.