Nissan Cefiro A32 automatic transmission control unit models:
* RE4R01A
* RE4R02A
* RE4R03A
Location of the automatic transmission control unit:
The automatic transmission control unit is usually located in the engine compartment, next to the battery or next to the air filter. On some models it may be installed under the hood.
Functions of the automatic transmission control unit:
The automatic transmission control unit controls gear shifting and automatic transmission operation. It uses sensors to monitor vehicle speed, engine speed, throttle position and other parameters to determine the best time to shift gears.
Common problems with the automatic transmission control unit:
* Imprecise gear shifts or sudden jerks
* Car’s inability to change gears
* Clutch slipping
* The check engine light on the instrument panel is illuminated
* The car does not move forward or backward
Diagnosis of problems with the automatic transmission control unit:
You can diagnose problems with the automatic transmission control unit using a fault code scanner. The scanner can be connected to the vehicle’s diagnostic port, which is usually located under the instrument panel.
Automatic transmission control unit repair:
The automatic transmission control unit can be repaired or replaced if it is faulty. Repairing the automatic transmission control unit requires special skills and equipment. Replacing an automatic transmission control unit can be an expensive procedure.
Tips for extending the service life of the automatic transmission control unit:
* Maintain your vehicle regularly, including changing the transmission oil and automatic transmission filter.
* Do not overload the vehicle or tow heavy trailers.
* Avoid sudden acceleration and aggressive driving.
* Keep your car’s radiator clean to ensure proper cooling.