Symptoms of automatic transmission malfunction caused by malfunctions of the speed sensor:
* Incorrect Gear Indication: The gear indicator may indicate the incorrect gear the vehicle is in.
* Increased engine speed: The engine may operate at higher speeds than normal, even when driving at relatively low speeds.
*Slippage and delay when shifting gears: The transmission may slip or delay when shifting gears.
*Hard Shifts: Gear shifts may feel harsh or harsh.
* Increased fuel consumption: Faulty speed sensor signals can cause the transmission to operate inefficiently, which increases fuel consumption.
*Speed Issues: The speed meter may show an incorrect speed, making it difficult to determine your actual driving speed.
* Problematic cruise control: The cruise control system may not work properly because it relies on data from the speed sensor to maintain the set speed.
* Trouble Codes (DTCs): A malfunctioning speed sensor can cause various speed-related DTCs to appear, which can be read using a diagnostic scan tool.
* Automatic transmission emergency mode indication: In some cases, a malfunction of the speed sensor can lead to the transmission going into emergency mode, which limits its functionality.
* Difficulty Starting: Sometimes a faulty speed sensor can prevent the engine from starting because the ECM (Electronic Control Module) relies on speed data to synchronize the ignition system.