B0078
Third Row Right Seat Belt Pretensioner Deployment Control
B0078 is an OBD-II diagnostic trouble code meaning: Third Row Right Seat Belt Pretensioner Deployment Control. Common causes: open or short circuit in wiring harness, pretensioner malfunction. Estimated repair cost: $56–167.
Symptoms
- Airbag light is on
- Passive safety system memory error
- The pretensioner may not work in an accident.
Causes
- Open or short circuit in wiring harness
- Pretensioner malfunction
- Problems with the restraint control module
- Contact corrosion
How to Fix
- Check the wiring harness for opens and shorts
- Check pretensioner chain resistance
- Inspect contacts for corrosion
- If necessary, replace the pretensioner or control module
Related codes
Error B0078 by Vehicle Brand
FAQ
What does the B0078 code mean?
B0078 is an OBD-II diagnostic trouble code that indicates: Third Row Right Seat Belt Pretensioner Deployment Control
What causes a B0078 error code?
The most common causes of B0078 include: Open or short circuit in wiring harness; Pretensioner malfunction; Problems with the restraint control module; Contact corrosion.
How do I fix a B0078 diagnostic trouble code?
To fix B0078: Check the wiring harness for opens and shorts. Check pretensioner chain resistance. Inspect contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B0078?
Limited driving only, diagnose soon
How much does it cost to fix B0078?
The estimated repair cost for B0078 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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