Pinpoint Test G : Stability Control Sensor Signal Faults: Notes
Refer to Vehicle Dynamic Systems for schematic and connector information.
Normal Operation and Fault Conditions
The RCM measures vehicle yaw rate, lateral acceleration and longitudinal acceleration and 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 and longitudinal accelerometers 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 Diagnostic Trouble Codes (DTCs).
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| C0061:28 C0062:28 C0063:28 |
Lateral Acceleration Sensor: Signal Bias Level Out of Range / Zero Adjustment Failure Longitudinal Acceleration Sensor: Signal Bias Level Out of Range / Zero Adjustment Failure Yaw Rate Sensor: Signal Bias Level Out of Range / Zero Adjustment Failure |
These Diagnostic Trouble Codes (DTCs) set 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 Sensor: Signal Erratic Yaw Rate Sensor: Signal Erratic |
These Diagnostic Trouble Codes (DTCs) set 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 |
Lateral Acceleration Sensor: Signal Plausibility Failure Longitudinal Acceleration Sensor: Signal Plausibility Failure Yaw Rate Sensor: Signal Plausibility Failure |
These Diagnostic Trouble Codes (DTCs) set in continuous memory and on-demand if the sensor signal does not match the other stability sensor signals (steering angle, yaw rate, longitudinal acceleration or lateral acceleration). |
| U0028:55 | Vehicle Communication Bus "A": Not Configured | This DTC sets in continuous memory and on-demand if the ABS module does not receive a valid RCM serial number in the first 7 seconds after module initialization. |
Possible Causes
- Wiring, terminals or connectors
- RCM
- ABS module