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Pinpoint Test BV: Abs (Anti-Lock Brake System) Module Communication Concern With SCCM (Steering Column Control Module): Notes

Refer to MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Normal Operation and Fault Conditions 

With the ignition ON, the SCCM sends messages to the GWM over the HS-CAN2, the GWM relays these messages to the ABS module over the FD-CAN. If the ABS module does not receive these messages within the specified time frame, the ABS module sets Diagnostic Trouble Codes (DTCs). This can be due to a SCCM failure, a circuit failure on the CAN or an excessive load on the network. For information on the messages sent to the ABS module by the SCCM, REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Condition
ABS U0212:00 Lost Communication With Steering Column Control Module: No Sub Type Information Sets if the SCCM messages are missing.

Possible Sources