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Home >> Fiat >> 2017 >> 500 Lounge, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 65 (Communication - Non-DTC Based Diagnostics - 500 - Electric) >> Diagnosis And Testing >> No Response From Orc (Occupant Restraint Controller) >> Theory Of Operation

Theory Of Operation

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The vehicle communications network includes a fault tolerant CAN-B bus of which the Occupant Restraint Controller (ORC) module is part of, and a non-fault tolerant CAN-C bus. The CAN-B bus is used for communication between body and interior modules at 50 kbps. The CAN-B bus uses a star topology, with all the control modules connected to the BCM as the central hub.

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