B00F4 code meaning
Second Row Right Inflatable Seat Belt Deployment Control
What B00F4 means
B00F4 covers the inflatable belt on the outboard right seat of row two. The hardware exists in series cars, but the code is not documented by any maker. Ford's Explorer (2014–2016) logs belt faults as B141B and/or B141C; supplement 2 of programme 21B11 (June 2022) stresses checking those codes first and allows a separate labour time when both are present, then repositioning or replacing the seat harness pigtail. Mercedes-Benz offers the beltbag on rear belts of the E-Class; its manual warns against routing a child seat through a belt carrying the BELTBAG label. Daimler's 2010 patent places the gas generator at the lower belt anchor and folds the webbing with tear threads. With B00F4 set, the airbag lamp is on.
B00F4 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 B00F4
- Airbag lamp illuminated
- Right rear inflatable belt not ready to deploy
- Safety note: do not open or probe the belt or its inflator; battery off, wait time, and leave the job to a specialist workshop
Common causes of B00F4
- Most likelyWorn or broken wires in the right second-row seat pigtail (Ford Explorer 2014–2016)
- PossibleInflator plug at the lower belt anchor or under the seat not latched
- Less likelyInflator igniter faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Second row right inflatable beltSquib circuitSRS control module
What each part of B00F4 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). |
| F4 | The exact fault in that area. |
What to do next
- Note B00F4 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 B00F4
What does B00F4 mean?
B00F4 means "Second Row Right Inflatable Seat Belt Deployment Control". B00F4 covers the inflatable belt on the outboard right seat of row two. It is a generic code, so it means the same on every make.
Is it safe to drive with B00F4?
B00F4 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B00F4 fail an emissions test?
B00F4 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 B00F4 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will B00F4 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.