B00C7 code meaning
Passenger Seat Occupant Position Sensor A
What B00C7 means
B00C7 opens the row of five passenger seat position sensors, a code absent from all public carmaker documents. The passenger seat is where position sensing reached series cars: Honda's OPDS puts sensors in the passenger seat back that judge sitting height and whether a child leans toward the door, and then blocks the seat-mounted side airbag and lights a side airbag off indicator. Honda's 1998 patent describes the principle: band electrodes in the back cover are fed with a high-frequency signal, and a nearby body raises the current, so shoulders, head and a door-side lean can be told apart; the unit also diagnoses its own faults. Honda asks for the system to be initialised after seat-back parts are changed. Whether a maker maps such a sensor to A is not documented. B00C7 lights the airbag lamp.
B00C7 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 B00C7
- Airbag warning lamp on
- Side airbag off indicator lit although the passenger sits upright
- Safety note: side airbag may be wrongly enabled or blocked; work on the seat back only de-energised and initialise the system afterwards, specialist workshop only
Common causes of B00C7
- Most likelyPosition system not initialised after seat cover, seat back sensor or control unit replacement
- PossibleElectrode or lead in the seat back damaged, for instance by a non-original seat cover or repairs
- Less likelyDamp seat back or objects pressed against it
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Passenger occupant position sensor aSRS seat wiringOccupant position module
What each part of B00C7 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). |
| C7 | The exact fault in that area. |
What to do next
- Note B00C7 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 B00C7
What does B00C7 mean?
B00C7 means "Passenger Seat Occupant Position Sensor A". B00C7 opens the row of five passenger seat position sensors, a code absent from all public carmaker documents. It is a generic code, so it means the same on every make.
Is it safe to drive with B00C7?
B00C7 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B00C7 fail an emissions test?
B00C7 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 B00C7 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will B00C7 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.