U0021 Chevrolet Low Speed Controller Area Network (CAN) Communication Bus (+) Open

U0021 Chevrolet Low Speed Controller Area Network (CAN) Communication Bus (+) Open

OBD Code:
System:
Subsystem:

U0021 Chevrolet – (ASE)
Network Communication
Fuel & Air metering, Auxiliary emission controls

Trouble Code Description: Low Speed Controller Area Network (CAN) Communication Bus (+) Open

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Analysis:

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Tech description: