DTC U2121:00 [ELECTRONICALLY CONTROLLED BRAKE UNIT]
id0402c6012400
Outline
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System malfunction location |
Communication error with vehicle control module (VCM) |
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Detection condition
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• The electronically controlled brake unit cannot receive CAN signal from the vehicle control module (VCM).
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Fail-safe
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Refer to “DTC Table” and “Fail-safe Function Malfunction Contents Table”. (See DTC TABLE [ELECTRONICALLY CONTROLLED BRAKE UNIT].)
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Possible cause
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• Malfunction in CAN communication line between vehicle control module (VCM) and electronically controlled brake unit
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System wiring diagram
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Not applicable
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Connector diagram
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Not applicable
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Diagnostic Procedure