Pinpoint Test Bx: PSCM (Power Steering Control Module) DTC (Diagnostic Trouble Code) U0452:00 Invalid Data Received From Restraints Control Module

NOTE: DTC U0452:00 indicates a power mode message concern.

The module reporting this DTC is not the problem module.

Refer to POWER STEERING CONTROLS for schematic and connector information.

Normal Operation and Fault Conditions

Description
The PSCM monitors the HS-CAN when the ignition is ON for more than 5 seconds, the voltage to the PSCM is greater than 10 volts and there are no Diagnostic Trouble Codes (DTCs) present inhibiting PSCM operation.

Diagnostic Aids
For additional information on the messages sent to the PSCM from the RCM module, refer to the Network Message Chart .
DTC U0452:00 indicates a yaw rate signal message concern. The module reporting this DTC is not the problem module. Do not install a new EPAS assembly if this DTC is set.
The presence of DTC U0452:00 prevents the Lane Centering Assist (LCA) feature from activating (if equipped). If set during a lane centering assist event, the event is terminated and the lane centering assist system is deactivated.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PSCM U0452:00	Invalid Data Received From Restraints Control Module: No Sub Type Information	This DTC is set if the PSCM receives an "fault" or "unknown" message from the RCM instead of valid information.

Possible Sources