B0062 code meaning
Knee Airbag Deployment Loop Short to Ground
What B0062 means
None of the publicly available J2012 code lists contain B0062; they jump from B0061 to B0070, and no carmaker describes it with the knee airbag meaning shown in the title. J2012 files knee airbag loops under B0004 for the driver and B0013 for the passenger, with the fault type in the added byte; Mercedes-Benz logs kneebag squib faults as B000413 and B001313, and in that scheme a grounded loop would carry byte 11 instead. The only public use of B0062 is at Saab: 9-3 airbag modules (manuals of 2003 and 2007) store it for the driver-side curtain or rollover bar loop, with byte 04 for open and 0E for resistance too high. Knee airbags sit in the lower dash; an IIHS study of 414 crash tests found little overall benefit for belted drivers.
B0062 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor1 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B0062
- Airbag warning lamp on
- Knee airbag may stay inactive in a frontal crash
- Safety note: knee airbag plugs sit under the dashboard; do not probe the circuit and only unplug them with the battery disconnected and the wait time observed
Common causes of B0062
- Most likelyKnee airbag lead chafed against a dash bracket or steering column part
- PossibleDamaged knee airbag connector after work under the dashboard
- Less likelySaab 9-3: fault in the driver-side curtain or rollover bar loop instead
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Knee airbagSRS wiringSRS control module
What each part of B0062 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). |
| 62 | The exact fault in that area. |
What to do next
- Note B0062 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 B0062
What does B0062 mean?
B0062 means "Knee Airbag Deployment Loop Short to Ground". None of the publicly available J2012 code lists contain B0062; they jump from B0061 to B0070, and no carmaker describes it with the knee airbag meaning shown in the title. It is a generic code, so it means the same on every make.
Is it safe to drive with B0062?
B0062 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B0062 fail an emissions test?
B0062 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 B0062 to fix?
Difficulty: workshop only. A typical repair takes 1 to 3 hours of work. This is a job for a workshop.
Will B0062 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.