Question 1

If a wheel locks during braking, wheel speed sensor data will show a ........in the number of rotations for the wheel.

Accepted Answer

decrease

Question 2

A vacuum ........is used to keep a reservoir of vacuum in the power brake booster in the event the engine stops running.

Accepted Answer

check valve

Question 3

Which of the following is not a common ABS configuration?

Accepted Answer

C

Question 4

A vehicle has illuminated red BRAKE and yellow ABS lights: Technician A says a thorough inspection of the brake system should be performed.Technician B says to check for store DTCs.Who is correct?

Accepted Answer

Both technicians are correct. The illuminated red BRAKE light indicates a problem with the brake system, so a thorough inspection should be performed. The illuminated yellow ABS light indicates a problem with the ABS system, which can be diagnosed by checking for stored DTCs. Therefore, both a brake system inspection and checking for stored DTCs should be performed.

Question 5

Which of the following tools can be used to check AC voltage-generating wheel speed sensors?

Accepted Answer

All the mentioned tools can be used to check AC voltage-generating wheel speed sensors. An oscilloscope can visualize the waveform, a scan tool can read sensor data, and a digital multimeter can measure the AC voltage output.

Question 6

Traction control systems are designed to reduce ........to slipping drive wheels.

Accepted Answer

The answer of Traction control systems are designed to reduce...

Question 7

Vehicles with stability control use a multiple ........to determine vehicle movement.

Accepted Answer

The answer of Vehicles with stability control use a multiple...

Question 8

Two technicians are discussing bleeding the hydraulic brake system on an ABS-equipped vehicle: Technician A says special bleeding procedures may be required purge all of the air from the system.Technician B says some antilock systems require using a scan tool to bleed the system.Who is correct?

Accepted Answer

Both Technician A and Technician B are correct. Some ABS systems require special bleeding procedures to ensure all air is removed from the system, and some systems also require the use of a scan tool to properly bleed the brake system. Therefore, both technicians are correct.

Question 9

All of the following are modes of ABS operation except:

Accepted Answer

All of the other modes listed (pressure increase, release, and hold) are actual modes of ABS operation, while calibration mode is not. Calibration may be necessary for proper ABS function, but it is not an operational mode of the system.

Question 10

ABS units that combine functions of the master cylinder, ABS control, and power assist are called ........systems.

Accepted Answer

The answer of ABS units that combine functions of the...

Quiz 16: Antilock Brakes, Vehicle Stability Control, and Power Assist