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Pinpoint Test C : DTC (Diagnostic Trouble Code) U0121:00: Notes

DTC U0121:00 

Normal Operation and Fault Conditions 

The BCM communicates with the ABS module over the HS-CAN. REFER to: Communications Network - System Operation and Component Description

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information A continuous memory DTC that sets in the BCM if ABS messages received from the ABS module over the HS-CAN are missing.

Possible Sources 

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