Causes of automatic transmission speed sensor error on Subaru:
* Faulty automatic transmission speed sensor
* Faulty wiring or connectors
*Transmission problems
* Faulty automatic transmission control unit
Symptoms of an automatic transmission speed sensor error on a Subaru:
* Unstable gear changes
* Gear changes too early or late
* Slipping when changing gears
*Check Engine light comes on
*Limited power mode
* Inability to change gears
Diagnosis of automatic transmission speed sensor error on Subaru:
* Read fault codes using a diagnostic scanner.
* Visually inspect the automatic transmission speed sensor and wiring.
* Check the presence of a signal from the automatic transmission speed sensor using an oscilloscope.
* Check that the voltage and resistance of the automatic transmission speed sensor are within specifications.
* Check the operation of the transmission.
Troubleshooting an automatic transmission speed sensor error on a Subaru:
* Replace the faulty automatic transmission speed sensor.
* Repair or replace faulty wiring or connectors.
* Eliminate faults in the transmission.
* Repair or replace the faulty automatic transmission control unit.
Important:
* It is recommended that you contact a qualified mechanic or authorized dealer for accurate diagnosis and repair.
*A transmission speed sensor error can cause serious transmission problems, so it is important to fix it as soon as possible.
* Use caution when handling the transmission as it may be hot and contain moving parts.