Driver Seat Belt Pretensioner Circuit Malfunction
The B0212 code means the vehicle's onboard diagnostic system has detected: Driver Seat Belt Pretensioner Circuit Malfunction. This is a critical severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $250 - $800 (parts and labor)
Basic scanners skip body codes entirely. BlueDriver reads airbag, HVAC, lighting, and BCM codes through your phone.
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Common Symptoms
- Airbag warning light illuminated
- Seat belt pretensioner inactive
- SRS system fault displayed
- Supplemental restraint warning
Probable Causes (Ranked by Likelihood)
- Faulty seat belt pretensioner unit Very High
- Damaged pretensioner connector High
- SRS wiring harness fault Moderate
- Airbag control module failure Low
Step-by-Step Diagnostic Procedure
-
Scan SRS module for fault data
-
Inspect pretensioner connector under seat
-
Check SRS wiring for damage
-
Test pretensioner circuit resistance
Frequently Asked Questions
Is it safe to drive with a pretensioner fault?
The pretensioner will not activate in a crash, reducing protection. Repair promptly.
What does the pretensioner do?
It tightens the seat belt instantly during a collision to remove slack and secure the occupant.
Can I reset this code myself?
SRS codes require a professional scan tool to clear after the fault is repaired.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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