B00F6

Code

Generic B — Body

Third Row Center Inflatable Seat Belt Deployment Control

Brand: Generic

Type: B — Body

Views: UK: 28 EN: 33 RU: 22

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Corroded, loose or damaged connector at the third-row center inflatable seat belt assembly
Open or shorted wiring between the seat-belt inflator/squib and the airbag control unit (ACU/SDM)
Failed inflator or squib inside the inflatable seat-belt assembly
Faulty airbag control module (ACU/SDM) or internal driver electronics
Previous deployment or incomplete post-deployment service (undeleted crash data)
Poor ground or low vehicle battery voltage during self-test

Symptoms

SRS/airbag warning lamp illuminated on instrument cluster
Possible supplemental restraint or inflatable seat-belt warning message
Third-row center inflatable seat-belt deployment disabled (stored fault)
Vehicle may log additional related SRS/airbag DTCs
Possible reduced occupant protection for that seating position

What to check

Use a compatible scan tool to read B00F6 and any related SRS DTCs; capture freeze-frame and history data
Confirm vehicle configuration (third-row center inflatable seat belt installed) and check for recent crash/repair history
Visually inspect the third-row center seat-belt connector and harness for corrosion, loose pins, burns, or physical damage
With battery disconnected and SRS power removed per manufacturer procedure, check continuity/resistance of the inflator/squib circuit at the seat-belt connector and at the ACU connector
Check for short to ground or short to battery on the inflator circuit (only with appropriate precautions and battery disconnected where required)
Inspect ground connections and battery voltage; ensure proper system supply voltage during tests

Signal parameters

Typical static squib/inflator resistance (intact) commonly in the low ohm range — often ~0.5–3.0 Ω depending on design (manufacturer-specific)
Open-circuit condition: very high resistance / infinite (indicates open wiring or destroyed squib)
Short/low-resistance condition:
Supply voltage to SRS control circuits: nominal battery voltage (~11–14.5 V) when ignition is on; ACU firing output is a high-current deployment pulse (do not attempt to measure firing pulse with standard tools)
Continuity threshold for a healthy circuit: measurable low-ohm continuity between ACU squib pins and inflator; large deviations from expected range indicate fault (refer to vehicle manufacturer specifications)

Diagnostic algorithm

Safety first: follow manufacturer procedure for disabling SRS (battery disconnect and wait time) before performing any work on airbag or inflator circuits
Scan for DTCs with a compatible SRS-capable scan tool; record B00F6 freeze-frame and any related faults
Verify vehicle has third-row center inflatable seat belt fitted and note any prior crash/airbag service
Visually inspect the center seat-belt connector, harness routing, and nearby connectors for damage, corrosion, or signs of overheating
With SRS power disabled per procedure, disconnect the seat-belt inflator connector and measure resistance across the squib terminals; compare to acceptable range (see signal_params and vehicle spec)
Check continuity between the inflator connector and the corresponding ACU pins to identify opens or high resistance
Check for shorts to battery or ground on the inflator feed using insulated test methods and with the battery disconnected where required
If wiring and connectors are good but resistance is out of spec or open, replace the inflatable seat-belt assembly (inflator/squib) following manufacturer replacement and disposal instructions
If inflator/assembly checks good but fault remains, inspect and test ACU/SDM inputs and grounds; update or replace ACU only after confirming wiring and component faults have been addressed
After repair or replacement, clear DTCs with the scan tool, perform required SRS system initialization or module programming, and verify the SRS lamp extinguishes and no DTCs return
If crash data is present in ACU, follow manufacturer procedure for crash-data clearing or ACU replacement as required

Likely causes

Connector corrosion/damage at seat-belt inflator
Open/short in wiring harness to third-row center inflator
Failed inflator/squib in the inflatable seat-belt module
Stored crash data or incomplete reset after deployment

Fault status

⚠️ Status

Inflatable third-row center seat-belt deployment control circuit fault — SRS warning active. The third-row center inflatable belt deployment may be disabled.

🔴 Repair difficulty: Hard

⏱️ Diagnostic time: 1.0-2.5 hours