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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Inflatable Restraint System >> Diagnosis And Testing >> Pinpoint Tests - Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Tests >> Pinpoint Test BK: DTC U0073 - Control Module Communication Bus Off >> Normal Operation

Normal Operation

This vehicle utilizes a communication system called a high-speed controller area network (HS-CAN). The HS-CAN consists of a twisted pair of wires connected to various modules on the vehicle.

The restraints control module (RCM) checks the HS-CAN circuits for faults. If the RCM detects a fault on the HS-CAN circuits, it will store diagnostic trouble code (DTC) U0073 in memory.

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