Look closely inside the terminal block for bent pins, backing-out wires, or green copper oxidization.
If you are dealing with this code on a specific car, let me know: The exact and year of production The engine type (e.g., 1.5 dCi, 1.3 TCe, 2.0 M9R)
It is to follow safety procedures when working on any system related to airbags or pretensioners:
Airbag warning light, Service light, or "Check Airbag" message.
: Internal resistance tolerances change as wiring harnesses age, causing the Airbag module to trigger a permanent or intermittent open-circuit code. Step-by-Step Resolution Upgrades
This happens if a technician updates the module software or resets settings without explicitly defining default speed-dependent tire pressures (standard vs. highway speeds).
Read the exact resistance loop ohms for the passenger pretensioner.