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Pinpoint Test L : U0121:00: Notes

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Normal Operation and Fault Conditions 

The SCCM communicates with the ABS module over the CAN. If the SCCM does not receive specific messages from the ABS module, the SCCM sets a DTC.

SCCM 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 This DTC sets when the SCCM does not receive expected messages from the ABS module.

Possible Causes 

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