Instructions for diagnosing automatic transmission Nissan X-Trail T30
Required tools:
* OBD2 code reader
* Multimeter
* Automatic transmission scanner (if available)
Step 1: Reading Trouble Codes
* Connect the OBD2 code reader to the vehicle diagnostic connector.
* Turn on the ignition.
* Read and record all automatic transmission related fault codes.
Step 2: Checking the automatic transmission fluid
* Check the automatic transmission fluid level using the dipstick. Must be in the “hot” range.
* Pay attention to the color and smell of the liquid. Black or scorched fluid may indicate problems with the automatic transmission.
Step 3: Checking Electrical Circuits
*Use a multimeter to check the voltage on the following components:
* Automatic transmission selector
* Automatic transmission solenoids
* Throttle Position Sensor
* Compare the values obtained with the manufacturer’s specifications.
Step 4: Check Mechanical Components
* Check the level of wear on clutches, brake bands and other mechanical components.
* If necessary, check the gaps and adjust them.
Step 5: Using an automatic transmission scanner (if equipped)
* Connect the automatic transmission scanner to the vehicle’s diagnostic connector.
* Establish a connection with the scanner and receive data from the automatic transmission, such as:
* Automatic transmission pressure
* Automatic transmission fluid temperature
* Rotation speeds of the engine and automatic transmission shafts
Step 6: Analyze the results
* Analyze the data obtained and compare it with the manufacturer’s technical specifications.
* Determine the possible cause of the automatic transmission malfunction.
Adviсe:
* Replace the automatic transmission fluid and filter in accordance with the manufacturer’s recommendations.
* Check the automatic transmission fluid level regularly.
* Avoid sudden acceleration and gear changes.
*If you do not have sufficient experience, it is recommended that you contact a qualified mechanic.