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Mazda
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2020
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3 Base, 4D Hatchback, AWD
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Repair and Diagnosis
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Accessories & Equipment
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Headlights
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On-Board Diagnostic - Adaptive Front Lighting System Control Module
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DTC U0122-87: Communication Error With DSC HU/Cm (Adaptive Front Lighting System (AFS) Control Module (Us))
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Diagnostic Procedure
Diagnostic Procedure
Perform an inspection in accordance with the multiplex communication system diagnostic procedure. (See
CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW ((US))
.)