B0094 code meaning
Center Frontal Restraints Sensor
What B0094 means
B0094 refers to a single crash sensor placed in the middle of the vehicle front, used where a car has one central frontal satellite rather than a left and right pair. Mitsubishi's airbag unit shows it as CRASH ZONE SENS and adds the J2012 name Center Frontal Restraints Sensor. Its index lists nine subtypes, logged once a fault has persisted for two seconds at ignition on: -11 and -12 for shorts to ground or supply, -88 for an open line, -81 for lost communication, -25 for a failed self-diagnosis, -28 for an offset error, -93 for a reset fault, -55 for a configuration mismatch and -86 when sensor and unit are not the specified parts. That index has no B0090 or B0095, so the centre unit is the only frontal satellite there. Bosch notes that crumple-zone acceleration sensors improve frontal crash detection. The airbag lamp lights.
B0094 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B0094
- Airbag warning lamp on
- Frontal crash detection falls back on the sensors inside the airbag unit
- Safety note: airbag system; disconnect the battery and keep the wait time before work at the front sensor, specialist workshop only
Common causes of B0094
- Most likelyOpen, short or corroded contact in the harness to the centre front sensor (subtypes -11/-12/-88)
- PossibleInternal fault of the crash zone sensor, e.g. offset or self-diagnosis error (subtypes -25/-28)
- PossibleSensor or airbag unit not the specified part, or unit configuration wrong (subtypes -86/-55)
- Less likelySensor or bracket bent by a front-end impact or refitted poorly after body work
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Center front crash sensorSRS wiringSRS control module
What each part of B0094 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). |
| 94 | The exact fault in that area. |
What to do next
- Note B0094 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 B0094
What does B0094 mean?
B0094 means "Center Frontal Restraints Sensor". B0094 refers to a single crash sensor placed in the middle of the vehicle front, used where a car has one central frontal satellite rather than a left and right pair. It is a generic code, so it means the same on every make.
Is it safe to drive with B0094?
B0094 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B0094 fail an emissions test?
B0094 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 B0094 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 2.5 hours of work. This is a job for a workshop.
Will B0094 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.