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Mazda
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2021
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3 Base
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Repair and Diagnosis (Single Page)
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Electrical
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Body Electrical
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On-Board Diagnostic - MAZDA Connect (5 Of 5)
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DTC U0140-00: Communication Error With Body Control Module (BCM) [Connectivity Master Unit]
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Diagnostic Procedure
Diagnostic Procedure
Perform an inspection in accordance with the multiplex communication system diagnostic procedure. (refer to the
CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW (US)
in the service information)