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Home › Mazda › 2021 › 3 Base › Repair and Diagnosis › Accessories & Equipment › Headlights › On-Board Diagnostic - Auto Leveling Control Module › DTC U212A-87: Communication Error With Light Control Module (LH) [Auto Leveling Control Module] › 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) .)