ESC and TC

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

• Vehicle speed (VS) sensor

• Lateral acceleration sensor

• Yaw sensor

• Steering wheel (handwheel) position sensor

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

• Three-channel ABS

• Four-wheel disc brakes

• Four-channel ABS

• Front disc with rear drum brakes

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

• Vehicle stability enhancement test

• Sine with dwell

• ESC plus

• Anti-skid test

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

• Electronic Stability Program (ESP)

• Vehicle Dynamic Control (VDC)

• Vehicle Stability Assist (VSA)

• Any of the above

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

• negative slip

• positive slip

• side slip

• None of these

When diagnosing ESC or TC system concerns, ________ is usually required.

• a factory scan tool

• specific service information (SI)

• performing a visual inspection

• All of the above

The hand wheel position sensor is located ________.

• in the air bag clock spring

• under the driver's side carpet

• in the steering column

• on the steering rack assembly

Technician A says that some vehicles with the Stabilitrak system continuously monitor wheel speed conditions and modulate hydraulic force to individual wheels to maintain stability. Technician B says that vehicles using traction control systems can reduce engine torque in slippery driving conditions. Which technician is correct?

• Tech A

• Tech B

• Both Tech A and Tech B

• Neither Tech A nor Tech B

In this drawing, the vehicle's intended track is "A." If driven a little too fast, the actual track is "B." This condition is known as ________.

• left hand drift

• oversteer

• understeer

• delayed steer

A flashing ESC lamp indicates a problem with the ESC system.

• True

• False