What is a Chevrolet Suburban 4th Gen airbag control module?
The Chevrolet Suburban 4th Gen airbag control unit is the central safety unit that activates all occupant restraint systems in the event of a crash. It precisely monitors sensors, stores relevant crash data, and ensures the proper functioning of all airbag modules and seatbelt pretensioners in the vehicle to ensure maximum occupant safety.
This highly complex electronic component, also known as the SRS SDM or Sensing Diagnostic Module, coordinates the airbag system's response in milliseconds. It is crucial for passive safety and must always function perfectly.
Why is the Chevrolet Suburban 4th Gen airbag control module defective?
The Chevrolet Suburban 4th Gen airbag control module becomes defective because it stores crash data after an accident, requiring reprogramming or replacement. Internal malfunctions, communication problems in the vehicle bus, or electrical problems can also cause failure, resulting in the activation of the airbag warning light.
Because the control unit is critical to safety, it stores irreversible crash data after an impact. This data prevents further use without professional repair or recoding, even if there is no visible damage.
Malfunctions can also be caused by aging components, overvoltage in the vehicle electrical system, or corrosion at the connectors. A defective module is often indicated by a permanently illuminated airbag warning light in the dashboard.
The errors can range from communication problems with other systems, such as the Class 2 data bus, to internal hardware failures. In such cases, a precise diagnosis is essential to identify the specific cause of the failure and repair the airbag control unit.
Common Error Codes for Chevrolet Suburban 4th Gen Airbag Control Unit Repair
Common trouble codes that indicate a fault with the Chevrolet Suburban 4th Gen airbag control module include communication problems, internal module malfunctions, and problems with the airbag deployment circuits. An accurate diagnosis is crucial to correcting these errors.
- B1000 → Control unit (ECU) communication error / ECU malfunction → Internal error in the airbag control unit
- U1000 → Class 2 data bus communication error → Fault in the control unit communication
- B0013 → Airbag control unit malfunction / Module Malfunction → Internal defect or circuit problem
- B0014 → Airbag control unit malfunction / Module Malfunction → Module error in the airbag control unit
- B0017 → Airbag control unit error (Diagnosed as module or circuit failure) → Module or circuit failure in the control unit
- B0018 → Airbag control unit error (Circuit Malfunction) → Circuit malfunction on the airbag control unit
- B0024 → Airbag control unit error (Driver Frontal Deployment Loop Stage 1 Open) → Open circuit of the driver airbag ignition circuit
- B0026 → Airbag control unit error (Driver Frontal Deployment Loop Stage 1 Open) → Interruption in the first ignition circuit of the driver airbag
- B0043 → Airbag control unit error (Driver Frontal Deployment Loop Stage 2 Voltage Out of Range) → Voltage problem in the second ignition circuit of the driver airbag
- B0044 → Airbag control unit error (Driver Frontal Deployment Loop Stage 2 Open) → Open circuit in the second firing circuit of the driver airbag
What part numbers are available for the Chevrolet Suburban 4th Gen airbag control unit repair?
For Chevrolet Suburban 4th Gen airbag control unit repairs, specific OEM part numbers are crucial for compatibility. Only the exact GM part numbers ensure the correct function of the safety system, as these modules are coded specifically for each vehicle.
The 100% verified and compatible original OEM part numbers for the Chevrolet Suburban 4th Gen Airbag Control Module (SRS SDM) are:
OEM part number: 13594402
Manufacturer: General Motors (Chevrolet). This type is the original airbag control unit, validated for Chevrolet Suburban models from 2015 to 2016.
OEM part number: 13538611
Manufacturer: General Motors (Chevrolet). This is also a genuine airbag control unit that has been verified multiple times for the 2021 Chevrolet Suburban 1500.
It's important to note that only these exact OEM numbers are compatible. Spare parts from suppliers like Bosch or Continental are not listed separately and are generally not readily available.
Used or refurbished modules must always have the exact same part number and ideally be reprogrammed from the original module. Incorrect programming or the use of an incorrect number will lead to serious malfunctions and illuminated airbag warning lights, compromising safety. A qualified workshop can help with this.