ASE A2 General Transmission/Transaxle Diagnosis

Question 1

A customer says the transmission "slams" into gear only after the vehicle sits overnight. What should the technician do FIRST, before ordering parts or removing the transmission?

Accepted Answer

Verify the concern by duplicating it, then check fluid level and condition and scan for DTCs

Answer

A concern must be verified by duplicating it under the reported conditions, along with basic checks of fluid and stored codes, before any repair is chosen. Replacing parts or reflashing without verification is guessing.

Question 2

A technician is checking the fluid level on a vehicle with a transmission dipstick, and the manufacturer's procedure does not specify anything unusual. Which condition is the usual requirement for the check?

Accepted Answer

Engine idling, transmission at normal operating temperature, vehicle level, selector in Park

Answer

The usual dipstick procedure is a level vehicle with the engine idling, the fluid at normal operating temperature, and the selector in Park (or as the manufacturer specifies). Reading the level under other conditions gives a false reading.

Question 3

While checking fluid on a torque converter automatic, a technician finds the fluid on the dipstick is pink and milky. Which is the most likely cause?

Accepted Answer

Coolant entering the fluid through a leaking transmission cooler in the radiator

Answer

A milky, pink appearance indicates water or coolant contamination, commonly from an internal leak in the cooler inside the radiator tank. Overfill leads to foaming, not a milky color caused by coolant.

Question 4

A scan tool shows DTC P0700 stored along with other transmission-related codes. What does P0700 indicate?

Accepted Answer

A request from the transmission control module to illuminate the MIL, meaning the TCM has stored its own DTCs

Answer

P0700 is the Transmission Control System Malfunction code. It means the TCM has set a fault and asked for the MIL, so the TCM's own DTCs must be retrieved to find the actual problem.

Question 5

A technician retrieves DTC P0741. Which condition does this code describe?

Accepted Answer

Torque converter clutch circuit performance or stuck off

Answer

P0741 is Torque Converter Clutch Circuit Performance or Stuck Off, set when actual slip does not match what the TCC command should produce.

ASE A2 Practice Test

ASE A2 Practice Test

ASE A2 General Transmission/Transaxle Diagnosis