What it means
The restraint control module detected a fault associated with right side restraints sensor 3. It sets the code when the sensor signal or its circuit fails the module's monitoring checks.
How it works
Right side restraints sensor 3 supplies crash-related input to the restraint control module for side-impact protection. B0098 sets when the module detects that sensor 3's signal or electrical circuit does not meet its monitoring checks, which may compromise the restraints linked to that sensor.
Common causes
Most likely first.
- Faulty side impact sensor
- Damaged or loose wiring
- Corroded connector
- Damage to the sensor mounting area
Symptoms
- Airbag warning light
- SRS warning message
- Side airbags may not work as intended
How to diagnose it
- Scan the SRS module to verify B0098 and review freeze-frame or event data for clues about when the fault occurred.
- Identify right side sensor 3 from the vehicle service information and inspect its mounting area for impact damage or looseness.
- Disable the SRS as specified by the manufacturer, then inspect the sensor 3 connector and nearby harness for corrosion, pin damage, or chafing.
- Test the right side sensor 3 circuit for opens, shorts, and poor connections using the correct wiring diagram and procedure.
- If the circuit is intact, test sensor 3 and the restraint control module input as directed by the manufacturer's diagnostics.
Common fixes
- Reconnect and secure the right side sensor 3 connector.
- Repair damaged wiring or corroded terminals in the sensor 3 circuit.
- Restore a damaged or loose sensor mounting area.
- Replace right side restraints sensor 3 if it fails the specified test.
- Repair the restraint control module only if the sensor and wiring pass their checks.
Can I keep driving?
Side airbags or related restraints tied to right side sensor 3 may not work as intended in a crash. Arrange prompt SRS diagnosis and do not work on its wiring without following the manufacturer's safety procedure.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.