Lost Communication with Restraints System Sensor (Side Sensor)
The airbag control module has stopped receiving data from a side impact sensor. Airbag warning lamp lights up; restraint deployment for side and curtain bags may be inhibited.
Affected components
- Side impact sensor
- Airbag module
- Sensor wiring
Common causes
- Medium likelihood: Side impact sensor failed
- Medium likelihood: Wiring damage in door or B-pillar
- Low likelihood: Gateway module routing CAN messages incorrectly
Possible symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.