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Pinpoint Test Bi : U0131:00: Notes

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Normal Operation and Fault Conditions 

IPC DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U0131:00 Lost Communication With Power Steering Module: No Sub-Type Information Sets on-demand and in continuous memory in the IPC if data messages received from the PSCM are missing for 1 second or longer.
The PSCM transmits to the BCM on the HS-CAN and the BCM transmits to the IPC on the MS-CAN.

Possible Sources 

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