B0078
Third Row Right Seat Belt Pretensioner Deployment Control
What it means
B0078 means Third Row Right Seat Belt Pretensioner Deployment Control.
Check these first
- An open in the third row right pretensioner squib circuit
- A short to ground on the third row right pretensioner wiring
- Corrosion at the third row right pretensioner connector
- A deployed or failed third row right pretensioner
- A blown fuse feeding the third row right pretensioner circuit
What to do next
- Inspect the third row right pretensioner squib wiring for opens and shorts
- Check the third row right pretensioner connector for corrosion
- Check the fuse feeding the third row right pretensioner circuit
- Check whether the third row right pretensioner has deployed
- Replace the third row right 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.