ESC Systems

The electronic stability control (ESC) system requires that the vehicle be equipped with what type of brake system?

• Four-wheel disc brakes

• Four channel ABS

• Three channel ABS

• Front disc with rear drum brakes

Which Federal Motor Vehicle Safety Standard requires electronic stability control to be on all vehicles by 2011?

• 126

• 113

• 109

• 101

What is the name of the standard test that is performed to verify ESC operation?

• ESC plus

• Vehicle stability enhancement test

• Sine with dwell

• Anti-skid test

What other name is used to describe an electronic stability control (ESC) system?

• Vehicle Stability Assist (VSA)

• Electronic Stability Program(ESP)

• Vehicle Dynamic Control (VDC)

• Any of the above

Which sensor is used by the ESC controller to determine the driver's intended direction?

-Yaw sensor

-Steering wheel (handwheel) position sensor

-Vehicle speed (VS) sensor

-Lateral acceleration sensor

• Yaw sensor

• Steering wheel (handwheel) position sensor

• Vehicle speed (VS) sensor

• Lateral acceleration sensor

A diagnostic trouble code (DTC) has been set for a fault with the lateral acceleration sensor or circuit. What test could be performed to check if the sensor is working?

• Unplug it and see if the scan tool reads 1.0 G

• Disconnect the sensor and hold it sideways to see if the scan tool reads 0.0 G

• Disconnect the sensor and hold it sideways to see if the scan tool reads 1.0 G

• Drive the vehicle in a circle to see if the scan tool reads 0.0 G

A lateral acceleration sensor is usually located where in the vehicle?

• Under the front seat

• In the center console

• On the package shelf

• Any of the Above locations

If a vehicle tends to continue straight ahead while cornering, the condition is called ________.

• Understeer

• Plowing

• Tight

• All of the above

Traction control uses the antilock braking system and other devices to limit ________ of the drive wheel during acceleration.

• Positive slip

• Negative slip

• Side slip

• None of these

A traction control system can often control all of these EXCEPT ________.

• Limit torque delivered to the drive wheels

• Engage four-wheel drive

• Upshift the transmission

• Apply the wheel brake to the wheel that is losing traction