Chevrolet Silverado EV 1st generation airbag control unit repair

What is a Chevrolet Silverado EV 1st generation airbag control unit?

In the Chevrolet Silverado EV 1st generation (since 2024), the airbag control unit is the central unit of the restraint system (SRS): it receives the signals from the crash sensors and, in an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered. Because it monitors the system constantly, it shows every fault it detects via the airbag warning light.

So that it can do this job when it matters, the unit runs a self-test as soon as the ignition is switched on and keeps checking while you drive, taking into account sensors, airbag modules and the associated wiring. If the warning light does not go out after starting or comes back on later, the monitoring has found a problem in the system.

After an accident the control unit also stores crash data and locks itself. This applies to your Chevrolet as well.

Why is the Chevrolet Silverado EV 1st generation airbag control unit defective?

The most common cause is crash data stored after an accident, even if no airbag has deployed. Ageing electronic components, cold solder joints, moisture and corrosion on connectors, and voltage spikes, for example from a weak battery or a jump start, are also possible triggers.

An ordinary diagnostic tool cannot remove this crash data, so the fault message remains even though the vehicle shows no outward sign of damage.

The other causes develop gradually: components on the circuit board age, and solder joints crack under changing temperatures and vibration. If moisture gets in or contacts corrode, signal transmission is disturbed, and voltage spikes damage sensitive components inside.

A permanently lit airbag warning light, a fault memory that cannot be reset or a diagnostic tool that cannot connect to the control unit point to a defect.

Common error codes for Chevrolet Silverado EV 1st generation airbag control unit repair

The codes assign a fault to an area of the restraint system, for this vehicle for example an internal fault of the control unit, a configuration mismatch, the firing circuits of the airbags or a stored crash data record.

Below you will find codes that can occur on this vehicle; the list makes no claim to completeness.

• B1000 → Internal fault in the airbag control unit
• B1001 → Configuration data does not match the body control unit
• B1019 → Configuration mismatch in the restraint components
• B0052 → Deployment commanded, crash data record stored
• B0012 → Driver airbag, first-stage firing circuit faulty
• B0013 → Driver airbag, second-stage firing circuit faulty
• B0019 → Passenger airbag, first-stage firing circuit faulty
• B0020 → Passenger airbag, second-stage firing circuit faulty

The codes are read out with a diagnostic tool. However, a code alone does not allow you to say with certainty that the control unit is defective, as a connector, a wire or an airbag module can equally be the cause. Only the inspection shows where the fault lies.

What part numbers are available for the Chevrolet Silverado EV 1st generation airbag control unit repair?

The label on the control unit carries the part number, and it determines the exact version, because the numbers within a model series differ depending on equipment and year of manufacture. Read the number from your unit and enter it in the repair order.

The number only tells you which version it is; whether the unit has a defect only becomes clear from reading out the fault memory or from the inspection.

The route to repair is short: first have the fault memory read out, disconnect the battery and remove the control unit. Then create a repair order online and send the unit in. At Airbag24, processing, made up of inspecting, repairing and testing, usually takes only 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.