Question 1

How does brush placement control the speed of a permanent magnet windshield wiper motor?

Accepted Answer

The placement of the brushes determines how many armature windings are connected  in the circuit. High speed uses fewer armature windings resulting in less counter electromotive force (CEMF) and greater armature current.

Question 2

The rear window defogger is removing only partial areas of fog from the window Technician A says the grid is damaged. Technician B says this indicates a faulty timer circuit. Who is correct?

Accepted Answer

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

Question 3

Climate-controlled seats are being discussed. Technician A says a Peltier element can be used to either heat or cool the airflow as it passes through the controller. Technician B says the system may rely on several modules to perform their functions. Who is correct?

Accepted Answer

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

Question 4

Describe some possible causes of intermittent operation of power door locks.

Accepted Answer

Faulty circuit breaker, faulty

Question 5

Blower motor resistor blocks are being discussed, Technician A says if the thermal limiter opens the fan will only operate at high speed. Technician B says if any of the resistors burn out, the blower motor fan will operate at low speed only. Who is correct?

Accepted Answer

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

Question 6

The operational speed of electromagnetic field winding depends on the strength of the motor's total what?

Accepted Answer

The answer of The operational speed of electromagnetic field winding...

Question 7

What component converts the rotary motion of the motor into the vertical movement of the window?

Accepted Answer

The answer of What component converts the rotary motion of...

Question 8

The drive side power seat does move fore or aft. The technician notices that the motor attempts to move the seat then stops. The least likely cause of this is:

Accepted Answer

A)  A binding track 
B)  A short in the motor armature 
C)  A faulty PTC 
D)  An obstruction under the seat 
A)  A binding track 
B)  A short in the motor armature 
C)  A faulty PTC 
D)  An obstruction under the seat

Question 9

The driver side power window will not go up or down. Technician A says a worn motor may be the problem. Technician B says the problem could be caused by a faulty master switch. Who is correct?

Accepted Answer

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

Question 10

The cruise control system is inoperative. Technician A says a faulty brake light switch can be the cause. Technician B says the cause may be the dump valve is stuck open. Who is correct?

Accepted Answer

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

Question 11

Horn relays are sometimes included in the horn circuit for which of the following reasons?

Accepted Answer

A)  To allow the use of two horns in the circuit 
B)  To decrease the amount of current needed to activate the horn 
C)  To decrease the amount of current that flows through the horn switch 
D)  To allow the horn button to be placed on the end of a stalk on the steering column 
A)  To allow the use of two horns in the circuit 
B)  To decrease the amount of current needed to activate the horn 
C)  To decrease the amount of current that flows through the horn switch 
D)  To allow the horn button to be placed on the end of a stalk on the steering column

Question 12

Technician A says the electronic cruise control system may use a normally open vent valve. Technician B says the electronic cruise control system may utilize the electronic throttle control system. Who is correct?

Accepted Answer

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

Question 13

When diagnosing a memory seat system, you find that the driver's seat does not move at all. The first procedure you should perform is

Accepted Answer

A)  to check the system for codes. 
B)  a visual inspection. 
C)  to check for voltage to the motor. 
D)  to replace the defective seat motor. 
A)  to check the system for codes. 
B)  a visual inspection. 
C)  to check for voltage to the motor. 
D)  to replace the defective seat motor.

Question 14

When testing the rear window defogger, the test light remains bright as it is moved the length of each grid. The most likely cause is a poor ground circuit connection.

Accepted Answer

A) True 
 B)False

Question 15

An inoperative electrochromic mirror is being discussed. Technician A says the mirror's light sensor may be faulty. Technician B says the external mirror switch may be defective. Who is correct?

Accepted Answer

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

Question 16

The memory seat function will operate only when the transmission is in the park position.

Accepted Answer

A) True 
 B)False

Question 17

A vent valve that is stuck open may cause the cruise control system to be inoperative.

Accepted Answer

A) True 
 B)False

Question 18

Electric defoggers operate on what principle?

Accepted Answer

That when electrons

Question 19

An inoperative electronic cruise control system is being discussed. Technician A says a stuck closed brake switch could be causing the problem. Technician B says the problem could be caused by an open cruise engagement switch. Who is correct?

Accepted Answer

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

Question 20

What type of sensor is used by the adaptive cruise control system to maintain set vehicle-to-vehicle distance?

Accepted Answer

The answer of What type of sensor is used by...

How does brush placement control the speed of a permanent magnet windshield wiper motor?

The rear window defogger is removing only partial areas of fog from the window Technician A says the grid is damaged. Technician B says this indicates a faulty timer circuit. Who is correct?

Climate-controlled seats are being discussed. Technician A says a Peltier element can be used to either heat or cool the airflow as it passes through the controller. Technician B says the system may rely on several modules to perform their functions. Who is correct?

Describe some possible causes of intermittent operation of power door locks.

Blower motor resistor blocks are being discussed, Technician A says if the thermal limiter opens the fan will only operate at high speed. Technician B says if any of the resistors burn out, the blower motor fan will operate at low speed only. Who is correct?

The operational speed of electromagnetic field winding depends on the strength of the motor's total what?

What component converts the rotary motion of the motor into the vertical movement of the window?

The drive side power seat does move fore or aft. The technician notices that the motor attempts to move the seat then stops. The least likely cause of this is:

The driver side power window will not go up or down. Technician A says a worn motor may be the problem. Technician B says the problem could be caused by a faulty master switch. Who is correct?

The cruise control system is inoperative. Technician A says a faulty brake light switch can be the cause. Technician B says the cause may be the dump valve is stuck open. Who is correct?

Horn relays are sometimes included in the horn circuit for which of the following reasons?

Technician A says the electronic cruise control system may use a normally open vent valve. Technician B says the electronic cruise control system may utilize the electronic throttle control system. Who is correct?

When diagnosing a memory seat system, you find that the driver's seat does not move at all. The first procedure you should perform is

When testing the rear window defogger, the test light remains bright as it is moved the length of each grid. The most likely cause is a poor ground circuit connection.

An inoperative electrochromic mirror is being discussed. Technician A says the mirror's light sensor may be faulty. Technician B says the external mirror switch may be defective. Who is correct?

The memory seat function will operate only when the transmission is in the park position.

A vent valve that is stuck open may cause the cruise control system to be inoperative.

Electric defoggers operate on what principle?

An inoperative electronic cruise control system is being discussed. Technician A says a stuck closed brake switch could be causing the problem. Technician B says the problem could be caused by an open cruise engagement switch. Who is correct?

What type of sensor is used by the adaptive cruise control system to maintain set vehicle-to-vehicle distance?

Introduction to Automotive Electrical and Electronic Systems Safety

Basic Theoriesspecial Tools and Procedures

Electrical and Electronic Componentsbasic Electrical Troubleshooting and Service

Wiring and Circuit Diagramswiring Repair and Reading Circuit Diagrams

Automotive Batteriesbattery Diagnosis and Service

Starting Systems and Motor Designsstarting System Diagnosis and Service

Charging Systemscharging System Testing and Service

Introduction to the Body Computerbody Computer System Diagnosis

Computer Inputssensor Diagnostic Routines

Vehicle Communication Networksvehicle Multiplexing Diagnostics

Lighting Circuitslighting Circuits Repair and Diagnosis

Instrumentation and Warning Lampsinstrumentation and Warning Lamp System Diagnosis and Repair

Radio Frequency and Infotainment Systemsservicing Radio Frequency and Infotainment Systems

Passive Restraint and Vehicle Safety Systemsservicing Passive Restraint and Vehicle Safety Systems

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Exam 13: Accessorieselectrical Accessories Diagnosis and Repair

How does brush placement control the speed of a permanent magnet windshield wiper motor?

The rear window defogger is removing only partial areas of fog from the window Technician A says the grid is damaged. Technician B says this indicates a faulty timer circuit. Who is correct?

Climate-controlled seats are being discussed. Technician A says a Peltier element can be used to either heat or cool the airflow as it passes through the controller. Technician B says the system may rely on several modules to perform their functions. Who is correct?

Describe some possible causes of intermittent operation of power door locks.

Blower motor resistor blocks are being discussed, Technician A says if the thermal limiter opens the fan will only operate at high speed. Technician B says if any of the resistors burn out, the blower motor fan will operate at low speed only. Who is correct?

The operational speed of electromagnetic field winding depends on the strength of the motor's total what?

What component converts the rotary motion of the motor into the vertical movement of the window?

The drive side power seat does move fore or aft. The technician notices that the motor attempts to move the seat then stops. The least likely cause of this is:

The driver side power window will not go up or down. Technician A says a worn motor may be the problem. Technician B says the problem could be caused by a faulty master switch. Who is correct?

The cruise control system is inoperative. Technician A says a faulty brake light switch can be the cause. Technician B says the cause may be the dump valve is stuck open. Who is correct?

Horn relays are sometimes included in the horn circuit for which of the following reasons?

Technician A says the electronic cruise control system may use a normally open vent valve. Technician B says the electronic cruise control system may utilize the electronic throttle control system. Who is correct?

When diagnosing a memory seat system, you find that the driver's seat does not move at all. The first procedure you should perform is

When testing the rear window defogger, the test light remains bright as it is moved the length of each grid. The most likely cause is a poor ground circuit connection.

An inoperative electrochromic mirror is being discussed. Technician A says the mirror's light sensor may be faulty. Technician B says the external mirror switch may be defective. Who is correct?

The memory seat function will operate only when the transmission is in the park position.

A vent valve that is stuck open may cause the cruise control system to be inoperative.

Electric defoggers operate on what principle?

An inoperative electronic cruise control system is being discussed. Technician A says a stuck closed brake switch could be causing the problem. Technician B says the problem could be caused by an open cruise engagement switch. Who is correct?

What type of sensor is used by the adaptive cruise control system to maintain set vehicle-to-vehicle distance?

Introduction to Automotive Electrical and Electronic Systems Safety

Basic Theoriesspecial Tools and Procedures

Electrical and Electronic Componentsbasic Electrical Troubleshooting and Service

Wiring and Circuit Diagramswiring Repair and Reading Circuit Diagrams

Automotive Batteriesbattery Diagnosis and Service

Starting Systems and Motor Designsstarting System Diagnosis and Service

Charging Systemscharging System Testing and Service

Introduction to the Body Computerbody Computer System Diagnosis

Computer Inputssensor Diagnostic Routines

Vehicle Communication Networksvehicle Multiplexing Diagnostics

Lighting Circuitslighting Circuits Repair and Diagnosis

Instrumentation and Warning Lampsinstrumentation and Warning Lamp System Diagnosis and Repair

Radio Frequency and Infotainment Systemsservicing Radio Frequency and Infotainment Systems

Passive Restraint and Vehicle Safety Systemsservicing Passive Restraint and Vehicle Safety Systems

Vehicles With Alternative Power Sourceshybrid and High-Voltage System Service

Filters