LEMON Manuals: Even more car manuals for everyone
Home >> Fiat >> 2015 >> 500L Trekking, Automatic Trans >> Repair and Diagnosis >> Restraints >> Seat Belts >> Occupant Restraint Controller (Orc) - DTCS B0115-1A To U1703-87 - 500L >> DTC Troubleshooting >> B012B-96-Driver Early Crash Sensor - Component Internal Failure >> Theory Of Operation

Theory Of Operation

The front left impact sensor (early crash sensor) is mounted in the engine compartment behind the front lamp unit. Refer to DESCRIPTION . The front impact sensor is directly hard wired to the Occupant Restraint Controller (ORC) Module. The impact sensors perform their own self test using power supplied by the Occupant Restraint Controller (ORC) then communicate this status back to the ORC with periodic updates. The repair of this fault condition involves verifying the integrity of the wiring between the ORC and the sensor.