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2020
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CX-30 Select, AWD
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Repair and Diagnosis
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Brakes
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Traction Control
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On-Board Diagnostics - Dynamic Stability Control System (DSC)
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DTC U2121-00: Communication Error With Vehicle Control Module (VCM) [DSC HU/Cm]
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Diagnostic Procedure
Diagnostic Procedure
Perform the malfunction diagnosis according to the troubleshooting procedure for the multiplex communication system. (See
CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW (US)
.)