B00D5

Code

Generic B — Body

Restraint System Passenger Disable Indicator

Brand: Generic

Type: B — Body

Views: UK: 31 EN: 210 RU: 51

AI status

Completed

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Page language: EN

Causes

Burned out or failed indicator lamp/LED in the instrument cluster or center console
Open, short or high-resistance wiring in indicator power, ground or signal circuits
Loose/corroded connector at the indicator, instrument cluster, or restraint control module (RCM)
Faulty passenger presence/occupancy sensor or seat weight/pressure mat
Faulty seat belt buckle sensor or wiring that affects passenger detection logic
Blown fuse supplying instrument cluster/indicator or RCM

Symptoms

Passenger airbag 'OFF' or 'DISABLE' indicator stuck on or not illuminating when expected
Dashboard SRS/airbag warning lamp may be illuminated
Passenger airbag may remain disabled unexpectedly, or status may be incorrect
Driver information message on dash indicating passenger airbag status fault
Intermittent operation of passenger disable indicator

What to check

Scan SRS and body modules: read all stored and pending codes, freeze frame and live data for passenger disable flag
Visual inspection: check wiring harness and connectors under the passenger seat and behind dash for damage, corrosion or loose pins
Inspect fuses related to instrument cluster/RCM and replace if blown
Check instrument cluster indicator: command ON/OFF via scan tool (if supported) to confirm lamp/LED operation
Measure battery voltage at the indicator circuit with key on (should be near 12 V when powered)
Check ground continuity for the indicator circuit (low ohms to chassis ground)

Signal parameters

Indicator supply voltage: approximately battery voltage (~11–14 V) when power is applied
Indicator ground: near 0 Ω continuity to chassis ground
Indicator logic/signal: 0–5 V logic (module dependent) or switched 12 V feed depending on design
Occupant detection mat output: varies by manufacturer — typically a variable resistance or 0–5 V signal; consult vehicle-specific values
Seat belt buckle switch: typically a switched ground or 12 V feed when latched
CAN message: 'Passenger Airbag Status' or 'Passenger Occupant Detection' flags on the data bus (verify with a capable scan tool)

Diagnostic algorithm

Safety first: follow SRS service procedures — disable battery negative and wait the manufacturer-specified time before accessing airbag components.
Connect a capable scan tool. Read and record all SRS and body control module (BCM) codes. Note freeze-frame and live data for passenger airbag disable status.
Clear codes and re-check to verify persistence. Reproduce the condition (sit in passenger seat, buckle/unbuckle) while monitoring live data.
Visually inspect fuses, indicator lamp/LED area, wiring and connectors under the passenger seat and behind the dash. Repair any physical damage.
Command the passenger disable indicator ON/OFF from the scan tool (if supported) to confirm the indicator itself functions. If the indicator will not respond, measure power and ground at the indicator connector.
If power or ground is missing or out of range, trace and repair wiring to the fuse, ground point, or RCM/instrument cluster connector. Check continuity and insulation.
If the indicator circuit is OK, check occupant detection system inputs: verify seat mat/pressure sensor and buckle switch signals and compare to expected values or behavior.
If occupant detection sensors report correctly but indicator still faults, inspect communication between the RCM and instrument cluster (check for U-codes). Swap or bench-test the instrument cluster only using manufacturer procedures if suspected.
Replace failed components (indicator cluster, sensor mat, connectors) only after verifying the root cause. Use OEM replacement parts and follow SRS torque/fastening and calibration steps if required.
After repair, reconnect battery, clear codes and perform SRS system self-test and functional checks: verify indicator responds correctly to passenger presence and that no SRS warning lamps remain lit.

Likely causes

Failed indicator lamp/LED or poor ground at the indicator
Open/short in indicator wiring harness between instrument cluster and RCM
Faulty passenger occupant detection sensor/seat mat
Corroded/loose connector under passenger seat or behind dash
Internal fault in the instrument cluster or restraint control module

Fault status

⚠️ Status

Passenger airbag disable indicator circuit fault detected. Indicator may not reflect correct passenger airbag status; SRS system should be inspected and repaired.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-2.0 hours