B1927

Code

Other B — Body

Passenger Side Airbag Fault

Brand: Other

Type: B — Body

Views: UK: 22 EN: 39 RU: 24

AI status

Completed

ready

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Page language: EN

Read SRS codes and freeze‑frame with a capable scan tool; record all SRS codes
Confirm SRS warning lamp behavior (steady vs. flashing) and any passenger airbag status indicator
Visually inspect passenger airbag connector(s), wiring harness under dash and in passenger seat area for damage, corrosion, or loose pins
Inspect passenger presence / occupancy sensor (seat) connections if vehicle equipped
Check for recent collision repairs or water/moisture exposure in passenger area

Airbag squib circuit resistance (with battery disconnected and connector unplugged): expected low resistance (typically a few ohms) — an open/infinite or very high value indicates an open circuit
Short to battery or ground: measured near 0 ohms indicates a short condition
SRS module supply/reference voltage: battery voltage present at module power/ground pins when key on
SRS diagnostic status and readiness flags as reported by scan tool
Freeze‑frame: vehicle conditions when code set (voltage, seat occupancy, crash detection flags)

Safety first: follow OEM SRS safety procedures. Disable vehicle battery per manufacturer instructions and wait the required time before touching SRS components.
Connect a capable scan tool and retrieve all SRS DTCs and freeze‑frame data. Note related B‑ or U‑codes and any passenger presence codes.
Clear codes, perform an ignition cycle, and see if B1927 returns to confirm persistent fault.
Visually inspect passenger airbag module connector(s) (dash/seat), harness routing, and connectors for damage, corrosion, bent pins, or loose terminals.
Inspect passenger seat occupancy sensor connectors and wiring (if equipped) as related faults can affect passenger airbag circuits.
With battery disconnected and following OEM procedures, measure squib circuit resistance at the airbag connector and at the SRS module connector (compare values and watch for opens/shorts). Only measure with module disconnected and follow safety guidance.
If open/short present, trace and repair wiring or replace damaged connector(s).
If wiring and connectors are good but squib shows abnormal resistance, replace the passenger airbag (module/inflator) only per OEM replacement rules.
If circuits and airbag unit are within spec but fault persists, consider SRS control module fault — verify module power/ground and communications, then replace or reprogram module per OEM instructions.
After repairs, clear codes, perform SRS system checks with scan tool, and verify warning lamp extinguished and no return of B1927.