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Difficulty: MediumABS and Electronic Stability

If the dashboard warning light for the anti-lock braking system (ABS) remains continuously illuminated whilst driving, the vehicle's standard footbrake will continue to function normally, but anti-lock assistance will be unavailable.

Answer: Answer

Answer

True — the conventional hydraulic braking system remains functional, but anti-lock assistance is disabled when the ABS warning light stays on.
The statement is true because modern braking systems are engineered with a mechanical fail-safe. If the ABS electronic control unit detects a malfunction (such as a faulty wheel speed sensor), it illuminates the dashboard warning light and disables anti-lock pulse modulation, leaving standard hydraulic braking fully functional.

Step-by-Step Solution

1
Interpret the function and meaning of a constant ABS dashboard warning indicator.
The warning light indicates that the electronic control unit has detected a fault and switched off the anti-lock feature.
Active electronic systems disengage automatic modulation to prevent erratic braking when sensors or actuators fail.
2
Evaluate the state of the primary vehicle braking mechanism under an ABS fault condition.
The baseline hydraulic braking system continues to function normally under driver pedal input.
Automotive braking systems incorporate mechanical/hydraulic redundancy so that normal braking is preserved even if electronics fail.
3
Determine the accuracy of the overall statement regarding vehicle drivability and braking limits.
The statement is true; the driver still has regular brakes but must account for the absence of anti-skid modulation during emergency stops until the fault is repaired.
Understanding active safety fallback states is essential for safe vehicle handling and immediate maintenance action.

Key Concept

ABS Fault Indicator and Conventional Hydraulic Braking Redundancy
Estimated Time:45s
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Topics

ABS and Electronic Stability

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