Possible causes of automatic transmission oil temperature sensor error:
1. Faulty automatic transmission oil temperature sensor:
*Corrosion or damage to the sensor connector
* Faulty sensor wiring
* Sensor failure
2. Low oil level in automatic transmission:
* Oil leak from automatic transmission
* Insufficient filling of automatic transmission with oil
3. Wiring problems:
* Broken or damaged sensor wiring
* Poor connections in wiring harness
4. Electrical problems:
* Malfunction of automatic transmission control module
*Blown fuse powering the sensor
5. Internal automatic transmission problems:
* Clutch slippage
* Damaged pump
* Clogged oil filter
Symptoms of a faulty automatic transmission oil temperature sensor:
* Check engine light is on
* An error message appears about the automatic transmission oil temperature
* Problems with gear shifting
* Automatic transmission overheating
* Automatic transmission slipping
Diagnostics and troubleshooting:
1. Check the oil level in the automatic transmission: Measure the oil level with the engine running and the gear selector engaged.
2. Check the automatic transmission oil temperature sensor: Remove the sensor connector and check for corrosion or damage. Check the sensor resistance according to the manufacturer’s specifications.
3. Check Wiring: Inspect the wiring harness for breaks or damage. Check wiring continuity using a multimeter.
4. Check Transmission Control Module: Use an OBD-II scanner to check for trouble codes associated with the Transmission Control Module.
5. Repair or replace the sensor: If the sensor is faulty, replace it with a new one.
6. Reset trouble codes: After troubleshooting, use an OBD-II scanner to reset trouble codes.
Note: It is recommended that you contact a qualified mechanic to accurately diagnose and repair the problem.