Possible problems with the automatic transmission control unit
* Shift errors:
*Hard shifts
* Gear slippage
* Switching delay
* Incorrect sensor readings:
* Incorrect display of gear shift degree
* Incorrect speed readings
* Electrical faults:
*Short circuit
* Open circuit
* Faulty solenoids
* Mechanical faults:
* Wear of internal components
* Hull damage
Signs of a faulty automatic transmission control unit
*Check Engine Light on Dashboard
* Flashing “D” or “R” indicator
*No gear shift
* Slipping or vibration when shifting gears
* Strange noises when shifting gears
Causes of malfunctions of the automatic transmission control unit
* Wear and tear on components due to normal use
* Mechanical damage caused by collisions or impacts
* Electrical faults due to short circuits or open circuits
*Overheating due to overuse or cooling system problems
* Corrosion due to exposure to moisture or chemicals
Diagnosis of problems with the automatic transmission control unit
Diagnosis of problems with the automatic transmission control unit may include:
* Reading fault codes using a scanner
* Checking electrical wiring and connections
* Visual inspection for mechanical damage
* Solenoid testing
Repairing problems with the automatic transmission control unit
Repairing problems with the automatic transmission control unit may include:
* Replacement of faulty components
* Repair of electrical wiring or connections
*Corrosion cleaning
* Replacement of the entire control unit
Repair costs will vary depending on the severity of the problem.
Prevention of problems with the automatic transmission control unit
To prevent problems with the automatic transmission control unit, it is recommended:
*Change transmission fluid and filter regularly
* Avoid sudden acceleration and braking
* Carry out regular vehicle maintenance
* Avoid overloading the vehicle
*Do not tow heavy loads without proper equipment