Question 122 of 140

What should a driver do during the pre-trip inspection to confirm the tractor's ABS warning lamp is functioning?

Pick an answer

Turn on the ignition and confirm the ABS lamp illuminates briefly, then goes out if there is no fault
There is no way to check the ABS lamp before driving
Confirm the lamp stays on continuously during normal operation
Check only the trailer's lamp during the pre-trip, since the tractor has no separate ABS indicator of its own

Correct!

Not quite. The correct answer is highlighted.

Show answer

Correct answer to question 122 (Combination Vehicles): Turn on the ignition and confirm the ABS lamp illuminates briefly, then goes out if there is no fault

Why

Like many warning lamps, the ABS light should briefly illuminate at startup as a bulb check, then turn off if the system detects no fault, confirming both the bulb and system are working correctly.

Updated: November 2026

Get ready for the knowledge testFree for iPhone and Android

Practice it in test 230 questions · pass with 24 (80%)

What should a driver do during the pre-trip inspection to confirm the tractor's ABS warning lamp is functioning?

Why

More questions from this subtest