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Pinpoint Test G : Stability Control Sensor Signal Faults: Notes

Refer to Wiring Diagrams Cell 42 for schematic and connector information.

Normal Operation and Fault Conditions 

The ABS module receives vehicle yaw rate, lateral acceleration and longitudinal acceleration information from the RCM over a private HS-CAN. This private HS-CAN is used only for communication between the RCM and the ABS module. The yaw rate sensor, lateral and longitudinal accelerometers are contained in the RCM. A failure of the private HS-CAN, RCM or the internal sensors will cause the ABS to set one or more Diagnostic Trouble Codes (DTCs).

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
C0061:28, C0062:28, C0063:28, C0064:28 Lateral Acceleration, Longitudinal Acceleration, Yaw Rate, Roll Rate Sensor: Signal Bias Level Out of Range / Zero Adjustment Failure This DTC sets in continuous memory and on-demand if the sensor signal is greater than the programmed sensor maximum plausible signal.
C0061:2F, C0063:2F Lateral Acceleration, Yaw Rate Sensor: Signal Erratic This DTC sets in continuous memory and on-demand if the sensor signal is out of range when the vehicle is standing still.
C0061:64, C0062:64, C0063:64, C0064:64 Lateral Acceleration, Longitudinal Acceleration, Yaw Rate, Roll Rate Sensor: Signal Plausibility Failure This DTC sets in continuous memory and on-demand if the lateral acceleration sensor signal does not match the other stability sensor signals (steering angle, yaw rate, longitudinal acceleration, etc.).
U0028:88 Vehicle Communication Bus "A": Bus Off This DTC sets in continuous memory and on-demand due to a circuit failure in the private HS-CAN between the ABS module and the RCM.
U0151:00 Lost Communication With Restraints Control Module: No Sub Type Information This DTC sets in continuous memory and on-demand if the expected RCM messages such as yaw rate sensor, lateral and longitudinal accelerometers are missing for more than 5 seconds.
U0452:86 Invalid Data Received from Restraints Control Module: Signal Invalid This DTC sets in continuous memory and on-demand if one or more of the stability sensors inside the RCM fails and the sensor signal provided does not match other vehicle dynamic sensor input.

Possible Sources 

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