B00E3 code meaning
Second Row Left Seat Belt Pretensioner C Deployment Control
What B00E3 means
B00E3 is the C-stage tensioner of the left outer rear seat, and two makers document it codegenau. Stellantis case S2408000089 (Jeep Wrangler 2023) has the occupant restraint controller store B00E3-13, named there for the retractor tensioner at the left of row two, after a service visit; the fix was to secure connector D3244A with a push-pull-push check, no parts. Mercedes-Benz topic LI54.21-P-070658 (A-Class, CLA, later GLB) reads B00E313 as an open squib in the tensioning retractor behind the left rear passenger, usually caused by high contact resistance at the airbag unit plug; reconnecting comes first, a new control unit only if the fault returns. So C here means the retractor, as Joyson's pyrotechnic retractor describes. Airbag lamp on.
B00E3 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor0.3 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B00E3
- Airbag warning lamp or SRS message in the cluster
- Left rear shoulder belt is not retracted in a crash
- Safety note: the retractor pretensioner is pyrotechnic; work only with the system de-energised (battery off, wait time) and preferably at a specialist workshop
Common causes of B00E3
- Most likelyRetractor pretensioner plug not latched after trim or seat work (Jeep Wrangler 2023, connector D3244A)
- PossibleHigh contact resistance at the airbag control unit connector (Mercedes LI54.21-P-070658)
- PossibleLead to the left rear retractor chafed at the C-pillar or seat frame
- Less likelyFaulty squib in the retractor pretensioner
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Second row left pretensioner cSquib circuitSRS control module
What each part of B00E3 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). |
| E3 | The exact fault in that area. |
What to do next
- Note B00E3 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 B00E3
What does B00E3 mean?
B00E3 means "Second Row Left Seat Belt Pretensioner C Deployment Control". B00E3 is the C-stage tensioner of the left outer rear seat, and two makers document it codegenau. It is a generic code, so it means the same on every make.
Is it safe to drive with B00E3?
B00E3 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B00E3 fail an emissions test?
B00E3 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 B00E3 to fix?
Difficulty: workshop only. A typical repair takes 0.3 to 2.5 hours of work. This is a job for a workshop.
Will B00E3 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.