B1790
Center Airbag Sensor Assembly Communication Circuit Malfunction
B1790 is an OBD-II diagnostic trouble code meaning: Center Airbag Sensor Assembly Communication Circuit Malfunction. Common causes: open or short circuit in wiring harness, oxidation of contacts in connectors.
Symptoms
- Airbag light (SRS) is on
- Incorrect operation of the passive safety system
- Lack of response from airbags in an accident
Causes
- Open or short circuit in wiring harness
- Oxidation of contacts in connectors
- Malfunction of the central airbag sensor
- Problems with power supply or sensor ground
- SRS module software failure
How to Fix
- Check wiring harness for damage
- Inspect and clean connector contacts
- Check the power and ground of the central sensor
- Scan the system for additional errors
- If necessary, replace the central sensor or wiring harness
- Reset errors and check system operation
Related codes
FAQ
What does the B1790 code mean?
B1790 is an OBD-II diagnostic trouble code that indicates: Center Airbag Sensor Assembly Communication Circuit Malfunction
What causes a B1790 error code?
The most common causes of B1790 include: Open or short circuit in wiring harness; Oxidation of contacts in connectors; Malfunction of the central airbag sensor; Problems with power supply or sensor ground.
How do I fix a B1790 diagnostic trouble code?
To fix B1790: Check wiring harness for damage. Inspect and clean connector contacts. Check the power and ground of the central sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1790?
Do not drive — repair immediately
See also: Russian version · NationStat