Problem Symptoms Table
WARNING: This page is about a different car, the 2006 Scion tC. However, it is still accessible from the selected car via links, so may be relevant.
If the ABS has a problem even when DTCs are not output, use the table below to identify the potential causes of the symptoms.
NOTE:
When replacing the brake actuator assembly or sensor, turn the ignition switch OFF.
Anti-lock brake system
PROBLEM SYMPTOMS CHART
| Symptom | Suspected area | See Procedure |
|---|---|---|
| ABS does not operate | 1. Check brake fluid leakage | BRAKE FLUID |
| 2. Check power source circuit | WIRING DIAGRAM | |
| 3. Check brake actuator assembly | ON-VEHICLE INSPECTION | |
| 4. When above areas (1 to 3) are normal but problem still occurs, replace brake actuator assembly | - | |
| ABS does not operate efficiently | 1. Check brake fluid leakage | BRAKE FLUID |
| 2. Check brake actuator assembly | ON-VEHICLE INSPECTION | |
| 3. When above areas (1 and 2) are all normal but problem still occurs, replace brake actuator assembly | - | |
| ABS warning light remains ON | 1. Check ABS warning light circuit | WIRING DIAGRAM |
| ABS warning light does not come ON | 1. Check ABS warning light circuit | WIRING DIAGRAM |
| ABS warning light remains ON | 1. Check brake warning light circuit | ABS WARNING LIGHT DOES NOT COME ON |
| ABS warning light does not come ON | 1. Check brake warning light circuit | ABS WARNING LIGHT DOES NOT COME ON |
| DTC check cannot be done | 1. Check TC and CG terminal circuit | TC AND CG TERMINAL CIRCUIT |
| Test mode cannot be done | 1. Check TS and CG terminal circuit | TS AND CG TERMINAL CIRCUIT |