Exam 11: Computer Controlled Suspension Systems

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?

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?

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

List the conditions when the On/Off switch in an electronic air suspension system must be turned off.

To increase the rear trim height in an electronic air s uspension system, the control module:

On a CAN bus system multiple networks on the vehicle can be linked together by what?

In some traction control systems if the control module  senses drive wheel spin, the first action taken by the  control module is to:

When both front and rear air springs require filling on a vehicle with an electronic air suspension system, fill the rear springs first.

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?

Technician A says that some networks contain terminators located at both ends of the network. Technician B says terminators are usually positioned inside some of the network computers. Who is correct?

All these statements about air springs, shock absorbers,and struts are true EXCEPT:

After installing an air spring, there should only be one or two creases in the spring membrane.

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

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?

When a front or rear air spring is being installed, what precautions must be taken with regard to the air bag?

How many height sensors are mounted on the front suspension in an electronic air suspension system?

Explain how a vehicle stability control system maintains vehicle stability.