Safety Inspections Flashcards

An ABS warning lamp remains on after startup but the red brake warning lamp is off. What is typically true?

Answer: Base brakes function but ABS is disabled

An amber ABS lamp alone indicates ABS is disabled while normal hydraulic braking remains available.

A technician measures rotor lateral runout of 0.006 inch on a vehicle with a 0.002 inch maximum specification. What symptom will the customer likely report?

Answer: Pedal pulsation during braking

Excessive lateral runout causes thickness variation over time, producing a pulsating pedal.

Which component should be checked when a vehicle's horn fails during a safety inspection, after confirming the fuse is good?

Answer: Horn relay and clockspring

The horn circuit typically runs through a relay and the steering wheel clockspring, both common failure points.

During inspection, a tire sidewall shows a bulge. What is the correct action?

Answer: Replace the tire

A sidewall bulge indicates internal cord damage and the tire must be replaced, as sidewalls cannot be repaired.

Technician A says brake fluid should be tested for copper content to judge corrosion inhibitor depletion. Technician B says DOT 5 silicone fluid can be mixed with DOT 3. Who is correct?

Answer: Technician A only

Copper content testing indicates inhibitor depletion, while DOT 5 silicone fluid must never be mixed with glycol-based DOT 3.

What is the main safety concern when a vehicle's steering wheel has excessive free play?

Answer: Delayed steering response and poor directional control

Excess free play delays the vehicle's response to driver inputs, reducing control.

When checking a vehicle's mirrors during a safety inspection, which condition commonly results in failure?

Answer: Missing or cracked mirror glass that obstructs rear view

Broken or missing mirror glass prevents adequate rearward vision and typically fails inspection.