Deck 11: Advanced Braking Systems

Question 1

Which of the following best describes the operation of the APP sensor?

A)Sensor 1 starts out at 0 volts and increases with increasing throttle angle.
B)Sensor 2 starts out at 0 volts and increases with increasing throttle angle.
C)Both A and B are correct
D)Neither A nor B are correct

Answer 1

A

Question 2

Technician A says The yaw sensor can measure the difference between the actual direction that the vehicle is traveling and the direction the driver is trying to steer the vehicle by way of the steering angle sensor . Technician B says This difference is called the slip angle . Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Answer 2

C

Question 3

Technician A says The KIA Optima uses active hydraulic brakes . Technician B says this s ystem uses a brake pedal position sensor to determine the amount of braking force needed . Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Answer 3

C

Question 4

TPMS systems are being discussed. Technician A says the tire pressure needs to be checked if the "service tire monitor" message is displayed.   Technician B says some TPMS systems have to be "relearned" when the tires are rotated. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 5

Technician A says the Distronic system is a cruise control system. Technician B says the Distronic system can see vehicles approximately 6,000 feet in front of the vehicle. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 6

Which of the following statements is correct about  beam-type Hall-effect yaw sensors?

A)They are the oldest type of yaw sensor.
B)They are the newest type of yaw sensor.
C)They receive a  10-volt signal from the EBCM and return some portion of that voltage as signal.
D)They do not return any portion of the voltage received as a signal.

Question 7

Which of the following modules communicate with the IPC?

A)BCM
B)ECM
C)EBCM
D)All of the above

Question 8

The KIA Optima Hybrid uses a ____________driven starter-generator to help slow the vehicle during deceleration.

A)belt
B)gear
C)vacuum
D)hydraulically

Question 9

The Toyota Prius uses two electric motor generators: MG1 and MG2. Technician A says that MG1 is used as a generator when braking and on deceleration. Technician B says that the MG2 is used as an electric motor drive. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 10

Yaw sensors are being discussed. Technician A says most yaw sensors produce a DC voltage signal. Technician B says most yaw sensors contain mercury. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 11

Technician A says the yaw sensor/lateral accelerometer sensors can be combined into one sensor. Technician B says that some lateral acceleration sensors can perform their own independent self-test. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 12

Technician A says s tability control is the controlled application and release of brakes at the correct time, independently of each other, to prevent an out of control vehicle during hard maneuvering . Technician B says there are two common terms for loss of steering control through a corner: understeer and oversteer . Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 13

________ means that the vehicle did not make it through a turn and went off the road on the outside of the turn.

A)Understeer
B)Oversteer
C)Instability
D)Distronic

Question 14

Active cruise control is being discussed. Technician A says a ctive cruise control systems allow the driver to set the following distance of the vehicle ahead.   Technician B says brakes can be applied and the throttle reduced anytime a slower vehicle is detected ahead by the system's radar. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 15

The _____________- is a cruise control system that can see drivers approximately 600 feet in front of the vehicle and apply the brakes if necessary to maintain a safe distance.

A)Pre-brake
B)Eyesight
C)Distronic
D)Prius.

Question 16

Steering angle sensors are being discussed. Technician A says that the steering angle sensor measures steering rotation in degrees of turn of steering wheel. Technician B says that the steering angle sensor measures the turning torque of steering wheel applied by the driver. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 17

Technician A says the red brake-warning lamp is an indication of an antilock- or stability-control-related system failure. Technician B says the red-brake warning lamp is usually an indication of a base brake system failure, such as low brake fluid. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 18

Technician A says a problem with the vehicle network can cause a problem with the electronic power steering system. Technician B says always check for any "S" codes. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 19

ESC is being discussed. Technician A says part or all of the start-up initialization may occur at key-on, and/or at a certain speed while driving. Technician B says some systems perform initialization test during a stability control event. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 20

Depending on the manufacturer, the stability control network of modules may include all the following modules EXCEPT:

A)Engine control module (ECM)
B)Power train control module (PCM)
C)Electronic brake control module (EBCM)
D)Electronic pedal actuator (EPA)

Question 21

Explain the purpose of the APP sensor.

Question 22

ABS, TCS, ARC, and stability control systems are designed to help prevent accidents. Explain why these systems have become available only recently on vehicles.

Question 23

List the three modes of operation that Chryslers tire pressure sensors have.

Question 24

How do radar cruise systems use active braking?

Question 25

Technician A says on the Chevrolet Volt, the EBCM, and the brake pressure modulator are connected together, so there are no external connections to check when a code for the regeneration pressure sensor is being checked out. Technician B says the scan tool communicates with the EBCM over the vehicle network. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 26

Explain the purpose of the brake pressure sensor.

Question 27

Technician A says that on some Chrysler tire pressure monitors send a signal to the remote control door lock receiver (RCDLR)regarding tire pressure.  Technician B says that some GM tire sensors can learn their own positions with a transponder built into the wheel well near the tire. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 28

Technician A says The idea behind regenerative braking is to recover some of the energy that is lost as heat when the brakes are applied and the vehicle is stopped . Technician B says Most hybrid and electric vehicles have a way to recover this lost energy as electrical power stored in the battery . Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 29

List stability control hardware.

Question 30

By some estimates as many as 80 percent of all accidents are caused by driver inattention.

Question 31

Stability control and the network are being discussed. Technician A says if any of the components or inputs to the stability control system h as problems, then the system may be deactivated . Technician B says a diagnostic trouble code (DTC)will be set for the appropriate system as needed . Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 32

Active cruise control systems allow the vehicle to set the following distance of the vehicle ahead.

Question 33

Which of the following choices is the proper order of preliminary checks when diagnosing a computer controlled system?

A)Verify the  complaint, check for any bulletins that may be pertinent to the problem, check for any trouble codes.
B)Check for trouble codes, verify the complaint, check any bulletins that may be pertinent to the problem.
C)Verify the complaint, check any bulletins that may be pertinent to the problem, check for trouble codes.
D)Check for trouble codes, check any bulletins that may be pertinent to the problem, verify the complaint.

Question 34

Explain how computer-controlled hydraulic steering works.

Question 35

Explain the difference between a yaw sensor and a G sensor.

Question 36

Stability control systems use a torque sensor located in the steering column.

Question 37

Describe the operation of a yaw sensor.

Question 38

Explain the situations when the steering angle sensor has to be recentered or relearned.

Question 39

While discussing the ESC module, Technician A says the ESC module works in cooperation with the other computers in the vehicle network to provide stability control. Technician B says that the ESC module stands alone and does not need to communicate with the vehicle network. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 40

Oversteer is the loss of traction at the rear wheels leading to a vehicle spin.

Question 41

ARC is an electronically controlled traction control system.

Question 42

Distronic is  the name that Mercedes gave their cruise control that has the ability to maintain a safe distance from other vehicles on the road ahead with no input from the driver .

Question 43

A voltmeter is used to recalibrate the steering position sensor.

Question 44

Active cruise control uses sonar to detect the speed of the vehicle ahead.

Question 45

The ________________sensor is a dual sensor that is mounted on a torsion bar inside the steering column.

Question 46

____________ cruise control systems have the ability to maintain distance behind the vehicle in front of them by applying the brakes as necessary to slow the vehicle .

Question 47

The ________ ____________ uses two motor generators: MG1 and MG2.

Question 48

An analog signal is infinitely variable.

Question 49

The stability control uses the ECM to control the ____________________ first to prevent wheel spin.

Question 50

A yaw sensor is used to measure forward acceleration.

Question 51

____________________ vehicles utilize regenerative braking to help recharge the batteries .

Question 52

The newest yaw sensors are beam-type ____________________ sensors that receive a 5-volt signal from the EBCM and return some portion of that voltage as a signal .

Question 53

The yaw sensor can measure the difference between the actual direction that the vehicle is traveling and the direction the driver is trying to steer the vehicle by way of the steering angle sensor. This difference is called the ____________________.

Question 54

On some vehicles the hydraulic modulator and the EBCM are mounted together but can be serviced separately.

Question 55

The ____________________, also called a brake pressure modulator valve , is generally composed of a valve body that contains the control valves used to is olate, decrease, and increase pressure at the individual wheels that can control the application of brake pressure according to the demands placed on the vehicle by the driver, and the optimum corrections as calculated by the VSC computer .

Question 56

Most hybrid vehicles use _______________________  to slow the vehicle down and convert kinetic energy into electrical energy.

Question 57

____________________ works with the vehicles struts/shock absorbers to prevent body roll in hard turns.