Symptom Table
If ABS warning lamp and SLIP indicator lamp turn ON, perform self diagnostic.
|
Symptom |
Check item |
Reference |
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Excessive ABS function operation frequency |
Brake force distribution |
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Looseness of front and rear axle |
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Wheel sensor and rotor system |
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Unexpected pedal reaction |
Brake pedal stroke |
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Make sure the braking force is sufficient when the ABS is not operating. |
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The braking distance is long |
Check stopping distance when the ABS is not operating. |
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ABS function does not operate (Note 1) |
ABS actuator and electric unit (control unit) |
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Pedal vibration or ABS operation sound occurs (Note 2) |
Brake pedal |
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ABS actuator and electric unit (control unit) |
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Vehicle jerks during VDC/TCS/ABS control |
ABS actuator and electric unit (control unit) |
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TCM |
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ECM |
NOTE:
- 1: The ABS does not operate when the speed is 10 km/h (6 MPH) or less.
- 2: Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly depressed (just place a foot on it). However, this is normal:
- When shifting gears
- When driving on slippery road
- During cornering at high speed
- When passing over bumps or grooves [approximately 50 mm (1.97 in) or more]
- When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]