What is a Chevrolet Epica 1st Gen airbag control unit?
The Chevrolet Epica 1st Gen airbag control unit, also known as the SRS module, is your vehicle's central safety unit, coordinating all passive restraint systems. It continuously monitors sensors in the vehicle, stores important crash data, and ensures the reliable deployment of airbags and seatbelt pretensioners to protect occupants in the event of an accident.
This electronic module is crucial for vehicle safety because it processes sensory data at lightning speed and initiates the necessary safety measures when needed.
It also acts as a diagnostic center, monitoring system status and signaling errors via the dashboard warning light.
Why is the Chevrolet Epica 1st Gen airbag control unit defective?
The Chevrolet Epica 1st Gen airbag control unit may be defective because it stores irretrievable crash data after an accident, internal electronic components fail, or communication with other vehicle systems is disrupted. In these cases, it must be repaired or replaced to ensure full passive safety functionality, which requires a professional Chevrolet Epica 1st Gen airbag control unit repair.
A common cause of failure is the storage of crash event data after an impact, which locks the module and triggers an error message.
Internal defects, such as faulty circuits or communication problems via the CAN bus, can also paralyze the system and cause a failure.
A failure would result in the airbag warning light remaining permanently illuminated and the safety systems would no longer function reliably in an emergency.
Common error codes for Chevrolet Epica 1st Gen airbag control unit repair
During Chevrolet Epica 1st Gen airbag control module repairs, specific error codes occur that indicate problems directly within the module and enable a precise diagnosis. These codes help identify the exact cause of the failure, such as communication errors, breaks in the airbag circuits, or problems with the control module's deployment command processing.
- B1000 → Control unit communication error → Signals problems in the data bus or the internal data processing of the module.
- B0017 → Passenger Frontal Deployment Loop Open → Indicates an open circuit in the front passenger airbag deployment loop, often internal to the module.
- B0018 → Passenger Airbag Module Deployment Circuit → Indicates a fault in the passenger airbag deployment circuit monitored by the control unit.
- B0053 → Deployment Commanded with Loop Error → Indicates a commanded airbag deployment with a simultaneous circuit malfunction within the system.
- B0055 00 → Side airbag deployment commanded → The control unit has commanded deployment of the side airbag, which indicates a detected impact.
- B0056 00 → Passenger frontal airbag suppressed → Signals that the control unit has actively deactivated the passenger airbag, often due to seat occupancy detection.
- B0073 → Supplemental Deployment Circuit No.1 resistance too low → Describes a short circuit in the supplemental deployment circuit measured by the control unit.
- B0074 → Supplemental Deployment Circuit No.1 open → Signals an open circuit in the supplemental deployment circuit, which may require repair of the module.
What part numbers are available for the Chevrolet Epica 1st Gen airbag control unit repair?
For the Chevrolet Epica 1st Gen airbag control unit repair, several verified original manufacturer (OEM) part numbers are relevant, ensuring exact compatibility with your vehicle model. These numbers identify the specific airbag control unit that is required to safely and effectively restore safety features in your Chevrolet Epica.
The most common OEM part numbers for the Chevrolet Epica 1st Gen Airbag Control Module are:
- **GM/Chevrolet Original:** 96385396, 13598483, 96435788, 96945708.
- **Bosch (OEM supplier):** 96 641 838 / 5WY67023-95160.
These numbers are critical to identifying the correct module for repair or replacement and restoring full system functionality.
The compatibility of these modules has been extensively tested and verified specifically for the first generation Chevrolet Epica.