Question 1

Which of the following is NOT considered an input for the suspension ECM?

Accepted Answer

A)  Sensor
B)  Photocell
C)  Electric motor
D)  SwitchE) B) and C)
F) C) and D)

Question 2

Technician A says that an electronic control module used in the suspension system is the same as that used for engine control. Technician B says that most electronically controlled suspension systems use a separate electronic control module. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) B) and C)
F) C) and D)

Question 3

What term describes an electrical device controlled by an electronic module that performs some kind of mechanical action?

Accepted Answer

A)  Actuator
B)  Driver
C)  Activator
D)  None of theseE) A) and B)
F) A) and C) A

Question 4

Refer to the diagram. Technician A says that the ELC fuse supplies power to the RIM. Technician B says that an open circuit at the splice pack will prevent the relay from working. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Neither technician A nor B
C)  Technician B only
D)  Both technicians A and BE) A) and C)
F) All of the above

Question 5

Technician A says that some GM vehicles have only one height sensor. Technician B says that GM vehicles may have up to four height sensors. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) A) and B)
F) B) and C)

Question 6

Which sensor provides input regarding cornering forces?

Accepted Answer

A)  Lateral accelerometer
B)  Potentiometer
C)  Yaw sensor
D)  None of theseE) A) and D)
F) A) and C)

Question 7

What type of actuator is used on electronically controlled suspensions?

Accepted Answer

A)  Electric motor
B)  Solenoid
C)  Either A or B
D)  Neither A nor BE) A) and D)
F) A) and C) C

Question 8

A steering wheel position sensor is being discussed. Technician A says that the sensor is used to determine the direction of the steering wheel. Technician B says that the sensor detects how fast the steering wheel is turned. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) A) and B)
F) B) and D)

Question 9

Why is the typical rear load-leveling system connected to the ignition circuit?

Accepted Answer

A)  To prevent the system from working unless the ignition key is on
B)  To keep the system active for a given time after the ignition is switched off
C)  To keep the compressor from running for an extended period of time
D)  All of the aboveE) A) and D)
F) None of the above

Question 10

How many wires are used with a potentiometer-type sensor?

Accepted Answer

A)  Three
B)  Four
C)  One
D)  TwoE) B) and C)
F) A) and C)

Question 11

Which of the following is the LEAST likely sensor to cause an electronic suspension fault?

Accepted Answer

A)  Steering wheel position sensor
B)  Yaw sensor
C)  Throttle position sensor
D)  Vehicle speed sensorE) C) and D)
F) A) and C)

Question 12

A lateral acceleration sensor is used to provide the suspension control module with feedback regarding ________ force.

Accepted Answer

A)  Acceleration
B)  Braking
C)  Cornering
D)  All of the aboveE) C) and D)
F) A) and B)

Question 13

Technician A says that comparing height sensors from side to side allows the ECM to calculate acceleration force. Technician B says that only Hall-effect sensors are used as height sensors. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) C) and D)
F) B) and D)

Question 14

Which sensor can be tested by unbolting the sensor and, with the ignition on, engine off (KOEO) , looking at the scan tool data?

Accepted Answer

A)  Vehicle speed sensor
B)  Wheel speed sensor
C)  Suspension sensor
D)  "G" sensorE) A) and D)
F) None of the above

Question 15

Technician A says that a potentiometer returns a digital signal to the ECM. Technician B says that a potentiometer generally has a two terminal harness connected to it. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) B) and C)
F) C) and D)

Question 16

Where is the steering wheel sensor typically located?

Accepted Answer

A)  At the base of the steering column
B)  Near the steering gear
C)  At the center of the steering wheel, under the airbag
D)  None of theseE) B) and C)
F) None of the above

Question 17

Two technicians are discussing electronic leveling systems. Technician A says battery power may be applied directly to the compressor. Technician B says most leveling systems use adjustable sensors. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) All of the above
F) A) and D)

Question 18

Two technicians are discussing the length of an actuators' duty cycle. What type signal are they most likely discussing?

Accepted Answer

A)  Analog
B)  AC current
C)  Pulse width modulation
D)  None of theseE) A) and B)
F) A) and C)

Question 19

Typically, a vehicle height sensor mounts to the body of the vehicle and is connected to the ________ by a lever.

Accepted Answer

A)  Lower control arm
B)  Upper control arm
C)  Frame
D)  None of theseE) B) and D)
F) A) and C) A

Question 20

Technician A says that comparing the front vehicle height sensors to the rear sensors allows the ECM to determine body roll created by cornering force. Technician B says that vehicle height sensors are only located on the rear. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) None of the above
F) B) and C)

Exam 115: Electronic Suspension Systems

Which of the following is NOT considered an input for the suspension ECM?

Correct AnswerverifiedShow Answer

Technician A says that an electronic control module used in the suspension system is the same as that used for engine control. Technician B says that most electronically controlled suspension systems use a separate electronic control module. Which technician is correct?

Correct AnswerverifiedShow Answer

What term describes an electrical device controlled by an electronic module that performs some kind of mechanical action?

Correct AnswerverifiedA

Refer to the diagram. Technician A says that the ELC fuse supplies power to the RIM. Technician B says that an open circuit at the splice pack will prevent the relay from working. Which technician is correct?

Correct AnswerverifiedShow Answer

Technician A says that some GM vehicles have only one height sensor. Technician B says that GM vehicles may have up to four height sensors. Which technician is correct?

Correct AnswerverifiedShow Answer

Which sensor provides input regarding cornering forces?

Correct AnswerverifiedShow Answer

What type of actuator is used on electronically controlled suspensions?

Correct AnswerverifiedC

A steering wheel position sensor is being discussed. Technician A says that the sensor is used to determine the direction of the steering wheel. Technician B says that the sensor detects how fast the steering wheel is turned. Which technician is correct?

Correct AnswerverifiedShow Answer

Why is the typical rear load-leveling system connected to the ignition circuit?

Correct AnswerverifiedShow Answer

How many wires are used with a potentiometer-type sensor?

Correct AnswerverifiedShow Answer

Which of the following is the LEAST likely sensor to cause an electronic suspension fault?

Correct AnswerverifiedShow Answer

A lateral acceleration sensor is used to provide the suspension control module with feedback regarding ________ force.

Correct AnswerverifiedShow Answer

Technician A says that comparing height sensors from side to side allows the ECM to calculate acceleration force. Technician B says that only Hall-effect sensors are used as height sensors. Which technician is correct?

Correct AnswerverifiedShow Answer

Which sensor can be tested by unbolting the sensor and, with the ignition on, engine off (KOEO) , looking at the scan tool data?

Correct AnswerverifiedShow Answer

Technician A says that a potentiometer returns a digital signal to the ECM. Technician B says that a potentiometer generally has a two terminal harness connected to it. Which technician is correct?

Correct AnswerverifiedShow Answer

Where is the steering wheel sensor typically located?

Correct AnswerverifiedShow Answer

Two technicians are discussing electronic leveling systems. Technician A says battery power may be applied directly to the compressor. Technician B says most leveling systems use adjustable sensors. Which technician is correct?

Correct AnswerverifiedShow Answer

Two technicians are discussing the length of an actuators' duty cycle. What type signal are they most likely discussing?

Correct AnswerverifiedShow Answer

Typically, a vehicle height sensor mounts to the body of the vehicle and is connected to the ________ by a lever.

Correct AnswerverifiedA

Technician A says that comparing the front vehicle height sensors to the rear sensors allows the ECM to determine body roll created by cornering force. Technician B says that vehicle height sensors are only located on the rear. Which technician is correct?

Correct AnswerverifiedShow Answer

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