Normal Operation and Fault Conditions
The RCM measures vehicle yaw rate, lateral acceleration, longitudinal acceleration and roll rate, then sends the information to the ABS module 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, longitudinal accelerometers and roll rate sensor are contained in the RCM.
A failure of the private HS-CAN, RCM or the internal sensors causes the ABS module to set one or more DTCs. An incorrectly installed RCM sends invalid information to the ABS module, which also causes a DTC to set.
PPT G ABS MODULE DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| C0063:29 | Yaw Rate Sensor: Signal Invalid | Sets when the ABS module detects the sensor message information does not match other ABS module sensor input. |
| C006A:29 | Multi-Axis Acceleration Sensor: Signal Invalid | Sets when the ABS module detects the sensor message information does not match other ABS module sensor input. |
| C006A:46 | Multi-axis Acceleration Sensor: Calibration/Parameter Memory Failure | Sets when the ABS module detects the stored signal offset does not match the previously stored information. |
| C006A:54 | Multi-axis Acceleration Sensor: Missing Calibration | Sets if the IMU Calibration procedure has not been carried out. |
| C0061:64 | Lateral Acceleration Sensor: Signal Plausibility Failure | Sets when the ABS module detects the sensor signal information is greater than the programmed or calculated maximum plausible sensor signal. |
| C0062:64 | Longitudinal Acceleration Sensor: Signal Plausibility Failure | Sets when the ABS module detects the sensor signal information is greater than the programmed or calculated maximum plausible sensor signal. |
| C0063:64 | Yaw Rate Sensor: Signal Plausibility Failure | Sets when the ABS module detects the sensor signal information is greater than the programmed or calculated maximum plausible sensor signal. |
| C0064:64 | Roll Rate Sensor: Signal Plausibility Failure | Sets when the ABS module detects the sensor signal information is greater than the programmed or calculated maximum plausible sensor signal. |
| U0125:87 | Lost Communication With Multi-axis Acceleration Sensor Module: Missing Message | Sets when the ABS module does not receive any messages from the RCM. |
| U0151:00 | Lost Communication With Restraints Control Module: No Sub Type Information | Sets when the time allotted for stability sensor messages expires before the ABS module receives any stability sensor messages. |
| U0452:68 | Invalid Data Received From Restraints Control Module: Event Information | Sets when the stability sensor messages received from the RCM indicate invalid information or indicate a fault with the sensor. |
| U0513:82 | Invalid Data Received From Yaw Rate Sensor Module: Alive/Sequence Counter Incorrect/Not Updated | Sets if RCM alive counter message indicates an error. |
| U1A14:00 | CAN Initialization Failure: No Sub Type Information | Sets when the private CAN between the ABS module and the RCM fails to initialize. |