Materials:
* Multimeter
* Set of socket wrenches
* Flat blade screwdriver
* Alcohol and cotton swabs
* Grease for electrical contacts
Tools:
1. Check the fuses. Before starting repairs, check the fuses associated with the automatic transmission selector position sensor. Replace any blown fuses.
2. Identify the sensor. The automatic transmission selector position sensor is usually located on the side of the transmission. It connects to the wiring harness. Find the sensor and disconnect the connector from it.
3. Check the sensor using a multimeter. Set the multimeter to resistance measurement mode. Connect one probe to the “Input” terminal of the sensor, and the other probe to the “Output” terminal. Switch the automatic transmission selector to different positions and observe the resistance readings. The resistance should vary at each selector position.
4. If the sensor is faulty, proceed to the next steps.
5. Remove the sensor. Using a socket wrench or flat blade screwdriver, remove the sensor from the transmission.
6. Clean the contacts. Use cotton swabs soaked in alcohol to clean the sensor contacts and wiring harness connector.
7. Apply electrical contact lubricant. Apply a thin layer of grease to the sensor and connector contacts.
8. Reinstall the sensor. Tighten the sensor using a socket wrench or flat blade screwdriver.
9. Connect the connector. Connect the wiring harness to the sensor.
10. Check operation. Start the engine and switch the automatic transmission selector to different positions. Check that the selector lever position is displayed correctly on the instrument panel.
Adviсe:
* Before starting repairs, disconnect the negative terminal of the battery.
* Be sure to use electrical contact lubricant designed for automotive use.
* If the problem persists after repair, the wiring harness or other components of the automatic transmission may be faulty. Seek professional help.