b1790 center airbag sensor assembly communication circuit malfunction
B1790 Center Airbag Sensor Assembly Communication Circuit Malfunction
OBD2 Code: B1790
Description: Center airbag sensor assembly communication circuit malfunction.
Definition: This code indicates a problem with the communication circuit of the center airbag sensor assembly. It means that there is an issue in the electrical circuit responsible for transmitting data between the center airbag sensor and other components, potentially affecting the deployment of airbags during a collision.
B1790 – Center Airbag Sensor Assembly Communication Circuit Malfunction
Typical severity: Critical
Common Causes
B1790 – Center Airbag Sensor Assembly Communication Circuit Malfunction
Common Causes:
- Faulty center airbag sensor assembly
- Open or short circuit in the communication circuit
- Poor electrical connection in the communication circuit
- Defective wiring harness
- Interference from other electronic devices
Common Misdiagnosis
OBD2 Code: B1790
Description: Center Airbag Sensor Assembly Communication Circuit Malfunction
Common Misdiagnosis: Faulty airbag module or sensor when the issue is often related to wiring or connector problems.
Common Diagnostic Steps
OBD2 Code: B1790
Description: Center Airbag Sensor Assembly Communication Circuit Malfunction
Common Diagnostic Steps:
- Verify the code using an OBD2 scanner and clear it to see if it returns.
- Inspect the wiring and connectors related to the center airbag sensor for damage or corrosion.
- Check the power supply and ground connections to the center airbag sensor assembly.
- Test the communication lines between the airbag control module and other modules for continuity.
- Use a multimeter to measure voltage levels at key points in the circuit.
- If available, use a scan tool with live data capability to monitor sensor readings while performing diagnostics.
- Consult vehicle-specific repair manuals for additional troubleshooting steps or technical service bulletins (TSBs) related to this code.
- If all else fails, consider replacing the center airbag sensor assembly after confirming no other issues are present.