Airbags

B0088 — Third Row Right Seatbelt Load Limiter Deployment Control Circuit Fault

Severity: medium Safe to drive

What B0088 means

The SRS control module detected a fault in the control circuit of the load limiter on the right-hand third row seatbelt. In a crash, the load limiter lets the belt pay out slightly to reduce the force on the occupant's chest. When the circuit fails its self-test, the module can't be sure the device will work and turns on the SRS warning light.

Symptoms

  • SRS / airbag warning light is on
  • B0088 returns after being cleared
  • The third row right belt load limiter may not work as designed
  • No driveability change, but occupant protection is reduced

Possible causes

  1. Open, short or poor connection in the load limiter wiring or connector
  2. Faulty load limiter in the third row right seatbelt assembly
  3. Corroded or loose connector under the cargo or side trim
  4. Harness damaged by trim removal or folding seats
  5. Internal SRS module fault (rare)

How to diagnose

  1. Scan all SRS codes with a scan tool that supports airbags and note the freeze frame data
  2. Check for other seatbelt or SRS power codes and verify battery voltage
  3. Inspect the harness and connector at the third row right belt for pinching, chafing, corrosion or poor routing
  4. Confirm the connector is fully seated and its terminals are clean
  5. Check circuit resistance and values per the manufacturer's service data with proper SRS-safe equipment, never a standard test light or meter on the circuit
  6. Swap in a known-good belt assembly if the wiring tests fine
  7. Clear the code and confirm it stays gone and the SRS light goes out

Common fixes

  • Repair or replace the damaged wiring or connector in the load limiter circuit
  • Replace the third row right seatbelt assembly with its load limiter
  • Reflash or replace the SRS module if it is confirmed faulty
  • Clean the connector terminals and secure the harness

Questions and answers

Can I drive with code B0088?

Yes, it doesn't affect the engine or brakes. But the third row right belt may not limit loads correctly in a crash, so get it checked soon.

What should I do if the SRS light is on with B0088?

Inspect the connector and wiring at the third row right belt, then test the circuit per service data. Leave SRS work to a qualified technician to avoid accidental deployment.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.