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B0083 — Second Row Left Seat Belt Load Limiter Deployment Control

Generic OBD-II · all makesBody

B0083 indicates a fault in the deployment control circuit for the load limiter on the second-row left seat belt. This safety feature manages belt tension during a collision to reduce occupant injury. The Supplemental Restraint System (SRS) warning light will illuminate to alert the driver.

Symptoms

What causes it — most likely first

1. Damaged wiring under the seat

Seat adjustment mechanisms often chafe or break wires running beneath the cushion.

2. Corroded or loose connector

Electrical connections at the seat belt assembly may oxidize or become disconnected.

3. Failed load limiter squib

The pyrotechnic component within the retractor assembly may have an open circuit.

4. Previous collision damage

Prior accident repairs may have left restraint system components damaged or unplugged.

5. Faulty SRS control module

Internal processing failure within the safety restraint controller is rare.

How it's diagnosed

  1. Disconnect negative battery cable and wait for system capacitor discharge
  2. Visually inspect wiring under the second-row left seat for pinch points or breaks
  3. Check electrical connectors for corrosion, bent pins, or secure engagement
  4. Measure circuit resistance using a multimeter per service manual specifications
  5. Replace faulty components and clear codes with a scan tool

Code facts & related codes

SystemBody
StandardizationSAE generic — identical on every make

Frequently asked

Is it safe to drive with this code?

The vehicle is drivable, but the seat belt safety system may not function correctly in a crash.

Does this code require PCM replacement?

No, this is an SRS system code; the engine computer (PCM) is not involved, and the SRS module rarely needs replacement.

Can I reset this code without repairs?

The code will likely return immediately if the underlying electrical fault is not corrected.

Why is wiring the most common cause?

Seat tracks move frequently, causing stress and fatigue on the harnesses routed underneath.