unit 3

A clock spring electrical connector may also be called a:

Technician A says electronic suspension control system operation may be affected by low battery voltage. Technician B says on an electronic suspension control system defects represented by a DTC with a U prefix must be repaired before proceeding with further diagnosis or service. Who is correct?

3

A worn idler arm may cause all of these problems EXCEPT:

4

Technician A says during a frontal collision, the backup power supply will deploy the driver and passenger air bags if the battery becomes disconnected. Technician B says when the vehicle is involved in a severe frontal collision, the driver and passenger air bags will not deploy if the battery cable is severed in the accident. Who is correct?

5

On a rack and pinion steering system, the inner tie rod sockets are best checked for wear:

6

A dial indicator may be used to measure power steering belt tension.

7

Technician A says the steering system's ability to isolate road shock from the steering wheel is reduced when the number of friction points is reduced. Technician B says a steering system has increased road feel when the number of friction points is reduced. Who is correct?

8

Technician A says the tie rods in a rack and pinion steering system should be parallel to the lower control arms. Technician B says a rack and pinion steering linkage has more friction points than a parallelogram steering linkage. Who is correct?

9

In a rack and pinion steering gear, the tie rods are connected to the rack.

10

When a four-wheel-drive vehicle with an automatic ride control (ARC) system is operating in four-wheel drive at 15 mph, the suspension module:

11

Outer tie-rod replacement and toe adjustment on a parallelogram steering linkage are being discussed. Technician A says to adjust the front wheel toe, and turn the tie-rod sleeves with a pair of vise grips. Technician B says after an outer tie-rod end is replaced, the front wheel toe must be measured. Who is correct?

12

A loose power steering belt may cause all of these problems EXCEPT:

13

All of these statements about a rear load-leveling suspension system are true EXCEPT:

14

Technician A says some automatic air suspension systems have rotary height sensors. Technician B says rotary height sensors contain a Hall Effect element. Who is correct?

15

To sense the distance to the vehicle in front, an adaptive cruise control system uses:

16

Technician A says a steering damper reduces the transmission of road shock from the front wheels to the steering wheel. Technician B says the steering damper is connected from the center link to one of the tie rods. Who is correct?

17

Electronic power steering (EPS) operation is being discussed. Technician A says the steering sensor informs the EPS control module regarding the direction of steering wheel rotation. Technician B says the interface in the steering sensor amplifies the DC voltage signal from the steering sensor. Who is correct?

18

Technician A says the active steering column is designed to provide crash protection for the 5th percentile smaller female driver. Technician B says the active steering column is designed to provide crash protection for the 50th percentile large male driver. Who is correct?

19

Technician A says a bent center link will affect front wheel toe. Technician B says a bent center link willaffect front wheel camber. Who is correct?

20

Technician A says many car manufacturers recommend checking the power steering fluid level with the fluid warmed up. Technician B says many car manufacturers recommend checking the power steering fluid level with the front wheels turned fully in one direction. Who is correct?

21

Technician A says during air spring inflation, the vehicle should be positioned on a frame-mounted lift so the wheels are dropped downward. Technician B says during air spring inflation, some of the vehicle weight must be applied to the suspension system. Who is correct?

22

Technician A says some rear load-leveling suspension systems have the capability to maintain the proper rear suspension height individually on each side of the vehicle. Technician B says this type of system has one rear suspension height sensor. Who is correct?

23

Technician A says when installing the Teflon rings on the control valve in a rack and pinion steering gear, the rings may be heated with a propane torch. Technician B says when installing the Teflon rings on the control valve in a rack and pinion steering gear, an expansion tool may be used. Who is correct?

24

Technician A says the suspension control switch must be turned on when servicing electronic air suspension components. Technician B says the suspension control switch must be turned on when lifting the front of the car with a floor jack. Who is correct?

25

In a center take-off power rack and pinion steering gear, the tie rods are attached to:

26

Collapsible steering columns may have injected plastic between the upper and lower parts of the outer column jacket.

27

Technician A says that in an electronic air suspension system if the engine is running, the brake pedal applied, and a door is open, lower vehicle commands are completed immediately. Technician B says that in an electronic air suspension system if the engine is running and a command cannot be completed in 3 minutes, the suspension warning lamp is illuminated. Who is correct?

28

Rack and pinion steering gear oil leak diagnosis is being discussed. Technician A says if oil leaks from the pinion end of the housing when the rack contacts the left internal stop, a defective inner rack seal is the problem. Technician B says if oil is leaking from the pinion end of the housing and it is not affected by steering wheel rotation, the pinion seal is leaking. Who is correct?

29

To deflate an air spring prior to removal of the spring:

30

A worn flexible coupling in the steering column may cause a rattling noise while the vehicle is driven.

31

Technician A says a clock spring electrical connector contains a conductive ribbon. Technician B says the clock spring electrical connector must be centered when it is mounted in the steering column. Who is correct?

32

When servicing a vehicle with an air suspension system, the air suspension switch must be turned OFF:

33

Technician A says that in a rack and pinion steering system, the inner tie-rod ends contain a spring-loaded ball socket. Technician B says worn rack and pinion steering gear mounting bushings cause improper tie-rod height. Who is correct?

34

Technician A says adaptive cruise control system uses a long-range radar sensor. Technician B says the lane departure warning system uses a video camera to measure lane markings. Who is correct?

35

Steering wheel removal is being discussed. Technician A says to loosen the steering wheel retaining nut, and pull on the steering wheel with both hands. Technician B says to tap on the top of the steering shaft with a soft hammer. Who is correct?

36

A rack and pinion steering system has excessive steering wheel free play. Technician A says one of the inner tie-rod ends may be worn. Technician B says the steering gear mounting brackets may be loose. Who is correct?

37

As the power steering pump shaft and rotor turn, what causes the vanes to move outward against the cam ring?

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