OBD-II fault code

B0088: Third Row Right Seatbelt Load Limiter Deployment Control (Subfault)

What it means

This code identifies a fault associated with the third-row right seatbelt load limiter deployment control. The failure type byte specifies the detected fault.

How it works

The restraint control module monitors the deployment circuit for the third-row right seat belt load limiter. It stores B0088 when that circuit fails a self-check; the failure type is specified by the accompanying fault byte.

Common causes

Most likely first.

  1. Load limiter circuit wiring or connector fault
  2. Open or short in the deployment circuit
  3. Faulty load limiter
  4. Restraints control module fault

Symptoms

  • Airbag or SRS warning light
  • Load limiter may not operate as intended in a crash

How to diagnose it

  1. Read the restraint module's freeze-frame data and failure-type details to identify when the third-row right circuit failed and what condition was recorded.
  2. With the SRS system made safe according to the vehicle manufacturer's procedure, inspect the third-row right load limiter connector and wiring for damage, looseness, corrosion, or pinching.
  3. Check for recent work around the third-row right seat or trim that may have disturbed its wiring.
  4. Use the manufacturer's diagnostic procedure to test the deployment circuit for an open or short; do not probe or apply power to an SRS circuit with ordinary test equipment.
  5. If the wiring passes its specified checks, test the third-row right load limiter and restraint control module according to the vehicle-specific procedure.

Common fixes

  • Secure or repair a loose or damaged third-row right load limiter connector.
  • Repair damaged wiring in the third-row right deployment circuit.
  • Replace the third-row right load limiter if it fails the manufacturer's test.
  • Repair or replace the restraint control module only if its checks confirm an internal fault.

Can I keep driving?

The vehicle may be drivable, but the third-row right load limiter may not work properly in a crash, and the SRS warning light indicates a restraint-system fault. Have the fault diagnosed promptly and avoid carrying a passenger in that seat until it is repaired.

A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together

This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.

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