013B - Multiple crash events stored airbag control unit fault

What does error code 013B mean in the airbag control unit?

Error code 013B indicates that several crash events are stored in the crash memory of the airbag control unit. The restraint system (SRS) control unit records the fault in the fault memory, keeps the airbag warning light permanently on and thereby signals a fault in the restraint system, which you should have checked promptly.

The crash memory is the area of the control unit in which crash events are recorded. Code 013B indicates that several such entries are stored there.

How do you recognise error code 013B?

Error code 013B first shows itself through the airbag warning light, which stays permanently lit for as long as the code is in the fault memory of the control unit. The entry cannot be permanently removed even by a clearing procedure, and it is read out with a diagnostic tool connected to the control unit.

Only the read-out shows whether the code is actually stored. If several crash events are recorded there, this matches the message of this code exactly. Without a read-out, the light is the visible indication of the entry.

What causes error code 013B?

Code 013B arises in the control unit itself, for example through crash data after an accident, as well as through aged electronic components, solder joints, moisture or corrosion, and voltage spikes caused by a weak battery or jump-starting. Which of these causes applies in each case is only established by a check at a specialist workshop.

• crash data from an accident that ends up in the control unit's memory
• ageing of individual electronic components in the unit
• solder joints on the unit's circuit boards
• corrosion of the contacts caused by penetrating moisture
• voltage spikes, for example when jump-starting or with a weak battery

All the causes listed lie in the control unit itself and not in the vehicle's wiring. The list names the causes that are possible for this code.

In which vehicles does error code 013B occur?

Error code 013B is known on Aston Martin vehicles, including the DB9, DB11, DBX, Rapide, Vanquish and Vantage models, as well as other models. Its meaning may differ on other vehicles, and the list here does not claim to be complete.

The affected models also include the Cygnet, DB7, DBS and Virage. If your model is missing from this list, a specialist workshop will establish the meaning for your vehicle.

How is error code 013B resolved?

Error code 013B is resolved by first reading out the fault memory with a diagnostic tool. If the cause lies in the control unit itself, for example in crash data after an accident, the unit is removed and sent to us for repair once the battery has been disconnected.

The read-out reveals the findings before anything on the vehicle is changed. Work on the airbag system belongs in qualified hands. Only after that is it decided which repair route to take.

First disconnect the battery, then remove the control unit. Create a repair order online and send the unit to our workshop. Checking, repairing and testing usually take 3–4 working days.

The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.