Driver Side
The driver side seat belt pretensioner or occupant detection system isn't responding properly, similar to a seatbelt that won't tighten before a crash. This is a safety system fault that prevents proper restraint deployment.
The ECU monitors the driver side pretensioner circuit voltage and resistance to ensure the system is ready for deployment. It checks for proper continuity and circuit integrity through the occupant detection module. A fault occurs when the circuit voltage drops below threshold or shows abnormal resistance patterns.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Pretensioner Circuit Voltage | 12-14V steady state | Below 10V or open circuit |
| Occupant Detection Resistance | 50-200 ohms | Above 300 ohms or below 10 ohms |
Code B1995 is a low-severity fault. Your vehicle is generally safe to drive to a workshop for diagnosis. However, do not ignore it indefinitely — low-severity codes often indicate developing problems that become expensive if neglected. Book a diagnostic appointment within 2–4 weeks. If you notice any additional symptoms (rough running, power loss, unusual smells), treat it as higher priority.
Once the fault is repaired, B1995 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.
The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.