B007C code meaning
Second Row Right Seat Belt Pretensioner B Deployment Control
What B007C means
B007C is the second-row right counterpart of B007B: an additional pretensioner stage at the right outer rear seat. No manufacturer publishes this code. On that seat Mitsubishi uses B0075 for its retractor pretensioner and Mercedes uses B00E4 for the right rear emergency tensioning retractor, so neither leaves a role for B007C. A B stage would typically be a buckle or anchor unit acting on the lap belt; NHTSA's 2013 evaluation explains how a buckle pretensioner pulls the buckle down by a cable and piston, while Joyson describes lap tensioners working with the retractor. Rear lap units are far less common than front ones, so this code is unusual. When it does appear, the airbag lamp stays on and that stage cannot be counted on.
B007C at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B007C
- Airbag warning lamp on
- Right rear lap belt not pretensioned in a crash
- Safety note: the tensioner contains a pyrotechnic charge; only work on it with the battery disconnected and at a specialist workshop
Common causes of B007C
- Most likelyPlug of the right rear buckle or anchor tensioner loosened during seat work
- PossibleAirbag module configuration lists a stage that is not installed
- Less likelyInternal fault of the right rear B-stage tensioner
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Second row right pretensioner bSquib circuitSRS control module
What each part of B007C means
| B | Body system: airbags, seat belts, power seats, lights and climate control. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 7C | The exact fault in that area. |
What to do next
- Note B007C and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about B007C
What does B007C mean?
B007C means "Second Row Right Seat Belt Pretensioner B Deployment Control". B007C is the second-row right counterpart of B007B: an additional pretensioner stage at the right outer rear seat. It is a generic code, so it means the same on every make.
Is it safe to drive with B007C?
B007C does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B007C fail an emissions test?
B007C is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is B007C to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will B007C clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.