ABS/Brake/Stability-Traction Control System Indication
WARNING: This page is about a different car, the 2019 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The brake/stability-traction control system indication is controlled almost entirely by 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.
NOTE:
All states listed below assume the parking brake is unapplied unless specifically stated in the event/fault condition column or specified in the status column.
| Event/Fault Condition | ABS Warning Indicator Status | Red Brake Warning Indicator Status | Amber Electric Park Brake Indicator Status | Stability-Traction Control Indicator Status | Stability-Traction Control Disabled Indicator Status |
|---|---|---|---|---|---|
| Stable driving (no control events occurring) | Off | Off or on if conditions such as low brake fluid level exist. | Off | Off | Off |
| Parking brake applied | Off | Flashing while parking brake is applying. On with parking brake applied. |
Off | Off | Off |
| ACC and ABS control event active | Off | Off | Off | Flashing | Off |
| Stability-traction control disabled by driver | Off | Off | Off | Off | On |
| Low brake fluid level or brake fluid level input concern | Off | On | Off | Off | Off |
| Stability-traction control event without brake pedal applied | Off | Off | Off | Flashing | Off |
| Stability-traction control event | Off | Off | Off | Flashing | Off |
| Single wheel speed sensor faults | On | Off or on if conditions such as low brake fluid level exist. | Off | On | On |
| 2 or 3 wheel speed sensor faults | On | Flashing | On | On | On |
| HCU valve fault | On | On | Off | On | On |
| ABS module fault | On | Flashing | On | On | On |
| ABS battery voltage faults | On | Flashing or on | On | On | On |
| ABS pump motor fault | On | On | Off | On | On |
| HCU pressure sensor fault (master cylinder pressure input) | Off | Off or on if conditions such as low brake fluid level exist. | Off | On | On |
| ABS low brake booster vacuum or vacuum sensor fault | Off | On | Off | Off | Off |
| Steering wheel angle sensor center not found fault | Off | Off | Off | On | On |
| Parking brake switch fault | On | Flashing | On | Off | Off |
| Configuration mismatch | Off | Off or on if conditions such as low brake fluid level exist. | Off | Off | Off |
| Vehicle Identification Number (VIN) mismatch | On | Off or on if conditions such as low brake fluid level exist. | Off | On | On |