OBD-II code B0098 indicates a fault with the Right Side Restraints Sensor 3, which is part of the vehicle's supplemental restraint system (SRS). This sensor monitors the status of side-impact airbags or seatbelt pretensioners and reports malfunctions to the restraints control module.
The sensor itself may have failed due to internal electrical issues, corrosion, or physical damage. This is the most common cause of B0098.
Damaged, corroded, or loose wiring/connectors between the sensor and the restraints control module can trigger this code. Common in areas exposed to moisture or movement.
Oxidation, bent pins, or improper seating of connectors can disrupt communication between the sensor and the control module.
While rare, the control module may misinterpret signals from the sensor due to internal faults or software issues. This is typically a last-resort diagnosis.
Impact, vibration, or improper installation can damage the sensor or its mounting, leading to incorrect readings or failure.
While the vehicle may remain drivable, the SRS system (including side airbags) may not function properly in a collision. Address the issue promptly to ensure safety.
No. The control module is rarely the cause of this code. Most issues stem from the sensor itself, wiring, or connectors. Replace the module only after thorough testing of other components.
An OBD-II scanner with SRS capability is required to read and clear the code. A multimeter and vehicle-specific wiring diagrams are also necessary for testing.
If the code reappears, it indicates an unresolved issue, such as a faulty sensor, damaged wiring, or poor connection. Recheck all components and connections before assuming a module failure.