Driver Seatbelt Pretensioner Circuit Fault
There's a problem with the seatbelt pretensioner in the driver's seat.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The seatbelt pretensioner is supposed to tighten the belt during a crash to keep you secure. If there's a fault, it might not work when needed.
What the computer is actually seeing
The airbag control module detects an open or short in the circuit that controls the driver's seatbelt pretensioner.
What a healthy reading looks like
Resistance in the pretensioner circuit should be between 2 to 5 ohms.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Inspect the driver's seatbelt connector and wiring for damage or corrosion. Repair as needed. Decision: If repaired, clear the code and test drive. Did the code return?
- 2Measure the resistance of the pretensioner circuit. You should see 2-5 ohms. Decision: Is the resistance within range?
- 3If the resistance is out of range, compare with a known good seatbelt pretensioner circuit. Decision: Can you locate the fault in the pretensioner or harness?
- 4If all wiring and pretensioner pass inspection, test the airbag control module for proper function using a scan tool. Decision: Is the module functioning properly?
Common causes
- Damaged seatbelt harness or connectors
- Faulty pretensioner actuator
- Corrosion or shorts in wiring
- Failed airbag control module
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended to drive until this is fixed, as the seatbelt pretensioner may not deploy in a crash.
Will this code come back if I clear it?
Yes, it will return if the underlying fault isn't fixed.
Why does this code pop up with other airbag codes?
Issues with airbag or pretensioner systems often mean multiple components are affected, leading to related fault codes.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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