ABS/Brake/Stability-Traction Control System Indication
The ABS, brake and stability-traction control system indication is controlled by both the IPC and the ABS module. The ABS module can illuminate multiple indicators for various fault conditions. The following table provides a summary of the basic fault conditions and the indicators that are illuminated for each condition.
NOTE:
Refer to the Normal Operation and Fault Condition description before each brake/stability-traction control system indicator Pinpoint Test (PPT) for the IPC default action for network/missing message conditions.
| Event/Fault Condition | ABS Warning Indicator Status | Brake Warning Indicator Status | Stability-Traction Control Indicator Status | Stability-Traction Control Disabled Indicator Status |
|---|---|---|---|---|
| Parking brake applied | Off | On | Off | Off |
| Low brake fluid level | Off | On | Off | Off |
| Stability-traction control event | Off | Off | Flashing (fast) | Off |
| Stability-traction control disabled by driver | Off | Off | Off | On |
| Single wheel speed sensor faults | On | Off | On | Off |
| 2 or 3 wheel speed sensor faults | On | On | On | Off |
| HCU valve fault | On | On | On | Off |
| ABS module fault | On | On | On | Off |
| HCU pressure sensor fault (master cylinder pressure input) | On | Off | On | Off |
| ABS battery voltage faults | On | On | On | Off |
| ABS pump motor fault | On | Off | On | Off |
| Steering wheel angle sensor center not found fault | Off | Off | On | Off |
| Parking brake position switch fault (open switch condition) | Off | Off | Off | Off |
| Vehicle Identification Number (VIN) mismatch | On | Off | On | Off |
| Incorrect vehicle configuration | On | On | On | Off |
| Stability control calibration file not flashed | On | Off | Flashing (slow) | Off |
| Longitudinal acceleration sensor not calibrated | Flashing (slow) | Off | Flashing (fast) | Off |
| Hill start assist disabled by the ABS module (hill start assist fault) | Off | Off | Off | Off |