B0073
Second Row Left Seat Belt Pretensioner Deployment Control
What it means
B0073 means Second Row Left Seat Belt Pretensioner Deployment Control.
Check these first
- An open in the second row left pretensioner squib circuit
- A short to ground on the second row left pretensioner wiring
- Corrosion at the second row left pretensioner connector
- A deployed or failed second row left pretensioner
- A seat connector disturbed during seat removal
What to do next
- Inspect the second row left pretensioner squib wiring for opens and shorts
- Check the second row left pretensioner connector for corrosion
- Check whether the second row left pretensioner has deployed
- Check the seat harness connector under the second row left seat
- Replace the second row left pretensioner if the circuit is open
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.