Signs of a faulty automatic transmission speed sensor:
1. Increased or decreased engine speed
* The engine may run too high or too low, even at a stable speed.
* Gear changes occur too early or late.
2. Problems with gear shifting
* The automatic transmission may not shift gears properly.
* Shocks or bumps may occur when shifting gears.
* The automatic transmission can go into emergency control mode.
3. Power reduction
* The vehicle may lose power, especially when accelerating.
4. Errors on the dashboard
*An error code related to the automatic transmission speed sensor may be displayed on the instrument panel.
*The Check Engine light may come on.
5. Speedometer not working
* The speedometer may not show the correct speed or may not work at all.
6. Short-term interruptions in work
* Symptoms of malfunction may occur occasionally or only under certain conditions, such as cold starts or certain speeds.
7. Damage to connector or wiring
* Inspect the sensor connector and wiring for damage or corrosion.
8. Malfunction of the electronic control unit (ECU)
* A faulty ECU can cause the automatic transmission speed sensor to malfunction.