Chevrolet Cruze automatic transmission control unit
The automatic transmission control unit (AT) in the Chevrolet Cruze performs the following functions:
* Controls gear shifting and automatic transmission operating modes.
* Monitors automatic transmission operating parameters, such as input and output shaft rotation speeds, oil pressure and temperature.
* Receives commands from the driver through the gearshift lever and other controls.
*Exchanges data with other vehicle electronic modules such as the engine ECU and body control module.
Location of the automatic transmission control unit
The automatic transmission control unit is usually located inside the automatic transmission itself or under it. In the Chevrolet Cruze it is located:
* Under the automatic transmission, next to the electrical wiring connector.
Part numbers
Automatic transmission control unit spare part numbers for Chevrolet Cruze may vary depending on the year of manufacture, engine type and configuration. Some basic part numbers:
* 12497987
* 22889224
* 24234217
* 24265762
Replacing the automatic transmission control unit
Replacing an automatic transmission control unit usually requires special tools and knowledge. It is recommended that you have a qualified mechanic perform this task.
Signs of a faulty automatic transmission control unit
A faulty automatic transmission control unit may exhibit the following symptoms:
* Problems with shifting gears or delays when shifting.
* Unexpected gear changes or shifting into neutral.
* Engine speed is too high or too low during gear changes.
* Flashing or lighting of the automatic transmission fault indicator on the dashboard.
* Transmission fluid leaks.
* Noise or vibration during automatic transmission operation.