9AT Diagnosis & Repair (LV2)

A. General Topics

Which fluid is used in the 9-speed automatic transmission?

• ATF+6

• AS68RC automatic transmission fluid

• 8- & 9-speed automatic transmission fluid

• . DDCT automatic transmission fluid

A. General Topics

Which of the following best describe when checking the fluid in a 9-speed automatic transmission

• the 9-speed transmission is "fill for life" and fluid level cannot be checked

• remove the level plug and check for fluid at the bottom of the threads

• the vehicle must be driven 12 miles before fluid can be properly checked

• use the scan tool, special tool, and temperature chart

A. General Topics

The transmission is unable to shift from 7th to 8th gear. Using the Clutch Application Chart below, what clutch could be causing this condition?

• E clutch is not applying

• A dog clutch is not releasing

• D clutch is not applying

• C clutch is not releasing

A. General Topics

There is an rpm flare when the transmission attempts to perform a 3-4 shift. Using the Clutch Application Chart, what clutch could be causing this condition?

• B clutch is not applying

• B clutch is not releasing

• E clutch is not applying

• A dog clutch is not releasing

A. General Topics

What is the hydraulic default for drive with the 9-speed park-by-cable valve body?

• C, D and F dog clutches applied

• No limp home mode

• . E and F dog clutches applied

• E, A dog, and F dog clutches applied

A. General Topics

What is the hydraulic default for reverse in a 9-speed park-by-wire valve body?

• No limp home reverse

• B, D and F dog clutches applied

• E and F dog clutches applied

• E, A, and F dog clutches applied

A. General Topics

What does the pressure transducer in a 9-speed monitor?

• Release pressure of the dog clutches

• Apply pressure of the multi-plate clutches

• Line pressure

• Regulated solenoid pressure

A. General Topics

During a rock cycle from reverse to 1st gear, clutches C, D, and F dog are all applied. What is the function of these clutches?

• The D clutch prevents the F dog clutch from fully matching the turbine speed in neutral.

• All three are brake clutches and will stop the planetary components and prevent the vehicle from rolling.

• The C and D clutches are partially applied (slipping) to prepare a rotational change. F dog clutch provides speed matching for synchronization

• The C and D clutches are partially applied (slipping) to prepare a rotational change.

A. General Topics

What is the name of the electrical component in the figure as shown below?

• Transmission range sensor

• Transmission pressure sensor

• Transmission input speed sensor

• Transmission output speed sensor

A. General Topics

What can be damaged if the final drive seal removal tool is inserted too deep?

• The B-clutch adjustment shims can become unseated

• The (primary) integral oil deflector valve

• The final drive bearings

• The integral differential O-rings will be torn