Exam 11: Computer Controlled Suspension Systems

A heavy parcel is placed in the trunk of a vehicle with a rear load-leveling system after the ignition switch has been turned off for 30 minutes. Technician A says the suspension module will quickly restore the rear suspension height to the normal trim height. Technician B says the suspension module will not restore the rear suspension height to the normal trim height until the engine is started. Who is correct?

On an automatic air suspension system, the front air spring and strut assemblies contain an actuator that varies strut firmness.

In an electronic air suspension system, the control module operates all of these components EXCEPT:

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

To force air into an air spring on an electronic air suspension system, the compressor must be running and the air spring valve must be de-energized.

In an electronic air suspension system, two hours after the ignition switch is turned off, which commands are completed and which are ignored?

In a electronic suspension system, the accelerometer contains:

For a vehicle with an electronic air suspension system, discuss the precaution that must be taken before any corner of the vehicle is raised and explain the results if this precaution is not observed.

In an ESC system with magneto-rheological fluid in  the shock absorbers or struts, the control module can  vary the shock absorber firmness in:

What do you have to do to remove an air spring valve from an air spring?

In a rear load-leveling air suspension system, how do you disable the system?

In an electronic air suspension system, what action is taken by the chassis control module if a command is received from the rear suspension sensor to lower the vehicle if the engine is running with a door open, and the control module receives a lower vehicle command from the height sensor?

A Magneride suspension system has magneto-rheological fluid in the shock absorbers.

On an electronic suspension control system, the chassis control module senses vehicle lift and dive from what other vehicle system?

How does the control module on an electronic suspension control system sense vehicle lift, dive, and roll?

Computer-controlled suspension systems reduce body sway during fast acceleration.

CAN is currently the standard communication protocol.

In a rear load-leveling air suspension system, when does the control module energize the compressor relay?

All of these statements about network systems are  true EXCEPT:

To provide stability control, the electronic brake and traction control module (EBTCM) uses input signals from a lateral accelerometer and a: