Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Pinpoint Test BH: Abs (Anti-Lock Brake System) Module Communication Concern With The RCM (Restraints Control Module): Notes
Refer to VEHICLE DYNAMIC SYSTEMS for schematic and connector information.
Normal Operation and Fault Conditions
With the ignition ON, the RCM sends messages to the GWM over the HS-CAN2, the GWM relays these messages to the ABS module over the FD-CAN. If the ABS module does not receive these messages within a certain time frame, the ABS module sets a DTC. For information on the messages sent to the ABS module by the RCM, REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description . .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| ABS C0061:28 | Lateral Acceleration Sensor: Signal Bias Level Out Of Range/Zero Adjustment Failure | Sets if the absolute value of the longitudinal acceleration message from the RCM is outside of the maximum allowable range. |
| ABS C0061:64 | Lateral Acceleration Sensor: Signal Plausibility Failure | The ABS module creates a reference value based on all other available sensor signals and compares this value. If the 2 values differ by more than the predetermined value, this DTC is set. |
| ABS C0062:64 | Longitudinal Acceleration Sensor: Signal Plausibility Failure | Sets if the sensor signal does not match the other stability sensor signals (steering angle, yaw rate, longitudinal acceleration or lateral acceleration). |
| ABS C0063:28 | Yaw Rate Sensor: Signal Bias Level Out Of Range/Zero Adjustment Failure | Sets if the absolute value of the longitudinal acceleration message from the RCM is outside of the maximum allowable range. |
| ABS C0063:64 | Yaw Rate Sensor: Signal Plausibility Failure | Sets if the sensor signal does not match the other stability sensor signals (steering angle, yaw rate, longitudinal acceleration or lateral acceleration). |
| ABS C0064:28 | Roll Rate Sensor: Signal Bias Level Out Of Range/Zero Adjustment Failure | Sets if the sensor signal does not match the other stability sensor signals (steering angle, yaw rate, longitudinal acceleration or lateral acceleration). |
| ABS C0064:64 | Roll Rate Sensor: Signal Plausibility Failure | Sets if the sensor signal does not match the other stability sensor signals (steering angle, yaw rate, longitudinal acceleration or lateral acceleration). |
| ABS U0151:00 | Lost Communication With Restraints Control Module: No Sub Type Information | Sets in the ABS module if the time allotted for stability sensor messages expires before the ABS module receives any stability sensor messages. |
| ABS U0452:02 | Invalid Data Received From Restraints Control Module: General Signal Failure | Sets if the yaw rate, roll rate, longitudinal acceleration or lateral acceleration messages from the RCM are invalid. |
| ABS U0452:41 | Invalid Data Received From Restraints Control Module: General Checksum Failure | Sets if the yaw rate, roll rate, longitudinal acceleration or lateral acceleration messages from the RCM are not received. |
| ABS U0452:86 | Invalid Data Received From Restraints Control Module: Signal Invalid | Sets if the yaw rate, roll rate, longitudinal acceleration or lateral acceleration counter signal message from the RCM does not update. |
Possible Sources
- Network communication concern
- RCM
- ABS module
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.