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Mazda
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2021
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3 Premium, 4D Hatchback, FWD, Standard Trans
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Repair and Diagnosis (Single Page)
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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 U212B-87: Communication Error With Body Control Module (BCM) [Auto Leveling Control Module]
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Diagnostic Procedure
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Diagnostic Procedure
Perform an inspection in accordance with the multiplex communication system diagnostic procedure. (See
CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW (US)
.)