What is a Chevrolet Silverado GMT400 airbag control module?
The Chevrolet Silverado GMT400 airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It monitors sensors, stores crash data, and ensures the proper functioning of all airbag modules in the vehicle. This module is critical to your vehicle's passive safety.
This Sensing Diagnostic Module (SDM) is responsible for the continuous monitoring of the SRS system in your vehicle.
It is usually located protected under the driver's seat and communicates digitally with the vehicle electronics.
The precise function of the module ensures that the airbags and belt tensioners are deployed in a timely manner in an emergency.
Why is the Chevrolet Silverado GMT400 airbag control unit defective?
The Chevrolet Silverado GMT400 airbag control module often fails because it stores crash data after an accident, requiring a reset, or it fails due to internal malfunctions such as corrosion or aging. A faulty module can activate the airbag warning light and compromise safety.
Common causes of defects include water damage, short circuits or internal software errors that impair the functionality of the control unit.
A triggered accident will also cause the module to become disabled and require repair or replacement for the Chevrolet Silverado GMT400 airbag control unit repair.
The airbag warning light on the dashboard indicates a failure and requires immediate diagnosis at the workshop.
Common error codes for Chevrolet Silverado GMT400 airbag control unit repair
For Chevrolet Silverado GMT400 airbag control module repair, the most specific and relevant error code is B1071, which indicates an internal defect in the airbag control module itself and requires direct action on the module. This code indicates a failure.
- B1071 → Internal control unit problem (SDM defective) → The airbag control unit has an internal fault.
What part numbers are available for the Chevrolet Silverado GMT400 airbag control unit repair?
For Chevrolet Silverado GMT400 airbag control unit repair, the most commonly verified OEM part number is 13527774 from General Motors, which is listed as an original module or certified replacement part, ensuring reliable spare parts procurement.
Part number 13527774 is a known OEM number for airbag control modules (SDM) in Chevrolet Silverado models of the GMT400 series (1988-1998).
Specific OEM numbers from suppliers such as Bosch or Continental are not listed separately for this specific GMT400 module in most public sources.
Professional diagnosis and the use of the correct part number are crucial to ensure the safety and functionality of the airbag system.