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Mazda
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2021
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3 Select, 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 - Auto Leveling Control Module
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DTC U212A-87: Communication Error With Light Control Module (LH) [Auto Leveling Control Module]
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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)
.)