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

Accepted Answer

The Accelerator Pedal Position (APP) sensor is responsible for measuring the position of the accelerator pedal and sending a signal to the engine control module (ECM) to adjust the throttle accordingly. Sensor 1 is the primary sensor and starts out at 0 volts and increases with increasing throttle angle. Sensor 2 is the backup sensor and provides a redundant signal to the ECM, but does not follow the same voltage pattern as Sensor 1. Therefore, option C is incorrect as Sensor 2 does not start out at 0 volts. Option D is also incorrect as option A is correct.

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

Accepted Answer

Technician A is correct in stating that the yaw sensor can measure the difference between the actual direction of the vehicle and the direction the driver is trying to steer the vehicle, which is obtained from the steering angle sensor. Technician B is also correct in stating that this difference is called the slip angle. Therefore, both technicians are correct.

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

Accepted Answer

The KIA Optima uses an active hydraulic brake system, which indeed utilizes a brake pedal position sensor to determine the required braking force, making both Technician A and Technician B correct.

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

Accepted Answer

The answer of TPMS systems are being discussed. Technician A...

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

Accepted Answer

The Distronic system is indeed a type of adaptive cruise control system developed by Mercedes-Benz, which automatically adjusts the vehicle's speed to maintain a safe distance from vehicles ahead. However, it does not see vehicles 6,000 feet in front; its range is much shorter.

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.

Accepted Answer

The answer of Which of the following statements is correct...

Question 7

Which of the following modules communicate with the IPC?
A)BCM
B)ECM
C)EBCM
D)All of the above

Accepted Answer

All three modules (BCM, ECM, EBCM) communicate with the IPC, as they all play a role in controlling various systems and functions within the vehicle.

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

Accepted Answer

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

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

Accepted Answer

Technician A is correct because MG1 is used as a generator during regenerative braking and deceleration to convert kinetic energy into electrical energy and charge the battery. Technician B is also correct because MG2 is used as an electric motor to drive the wheels and provide propulsion, as well as working as a generator during regenerative braking to convert some of the kinetic energy back into electrical energy.

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

Accepted Answer

Most yaw sensors produce an AC voltage signal and do not contain mercury.

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

Accepted Answer

Both technicians are correct. The yaw sensor and lateral accelerometer sensors can be combined into one unit in some vehicles, while some lateral acceleration sensors are also capable of performing their own self-test.

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

Accepted Answer

Stability control is indeed the controlled application and release of brakes independently on each wheel to prevent vehicle instability during hard maneuvering. Additionally, understeer and oversteer are the two common terms used to describe loss of steering control through a corner. Therefore, both technicians are correct.

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

Accepted Answer

Understeer is when the vehicle is not turning as much as the driver wants it to, causing it to go off the road on the outside of the turn. Oversteer, on the other hand, is when the vehicle turns more than the driver intends and the rear end of the vehicle swings out. Instability refers to a lack of stability or control in the vehicle, and Distronic is a brand name for a type of cruise control system.

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

Accepted Answer

Both technicians A and B are correct. Active cruise control systems do allow the driver to set the following distance of the vehicle ahead, and they can apply brakes and reduce throttle when a slower vehicle is detected by the radar.

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.

Accepted Answer

Distronic is a cruise control system developed by Mercedes-Benz that uses radar to maintain a safe distance from vehicles ahead, including the capability to apply brakes if necessary.

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

Accepted Answer

Steering angle sensors measure the rotation of the steering wheel in degrees of turn, as stated by Technician A. Technician B is incorrect, as this sensor does not measure turning torque applied by the driver.

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

Accepted Answer

The red brake-warning lamp is usually an indication of a base brake system failure, such as low brake fluid. While the antilock- or stability-control-related system failure can cause the red brake-warning lamp to come on, it is not always the case. Therefore, Technician B is correct.

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

Accepted Answer

A problem with the vehicle network can indeed affect the electronic power steering system, as these systems often rely on network communication for proper operation. "S" codes are not a standard diagnostic code type, so Technician B's advice is not applicable.

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

Accepted Answer

The answer of ESC is being discussed. Technician A says...

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)

Accepted Answer

The stability control network of modules typically includes the engine control module (ECM), powertrain control module (PCM), and electronic brake control module (EBCM). The electronic pedal actuator (EPA) is not typically part of this network.

Quiz 11: Advanced Braking Systems

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

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?

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?

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?

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?

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

Which of the following modules communicate with the IPC?

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

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?

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?

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?

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

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.

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?

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?

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?

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?

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