how to troubleshoot P0740 torque converter code on Tesla Outback 5th Generation (2015-2019)

• •Check engine light illuminated
• •Engine RPM fluctuations at highway speeds
• •Poor fuel economy
• •Transmission overheating
• •Delayed or harsh shifting
• •Engine stalling during deceleration

1. 1Scan the vehicle's onboard computer with an OBD-II scanner to confirm the P0740 code and check for any additional codes.
2. 2Inspect the transmission fluid level and condition, ensuring it is at the correct level and not burnt or contaminated.
3. 3Visually inspect the wiring and connectors leading to the torque converter clutch solenoid for signs of damage or corrosion.
4. 4Test the torque converter clutch solenoid operation using a multimeter to check for proper resistance.
5. 5Check for any vacuum leaks in the intake system that could affect engine performance.
6. 6Perform a road test to monitor transmission behavior and confirm symptoms.

After completing the repair, verify that the issue has been resolved:

• ✓Test the affected component to ensure it functions correctly
• ✓Check for any error codes or warning lights
• ✓Monitor the vehicle for a few days to ensure the issue does not recur

To prevent this issue from occurring again:

• •Follow the manufacturer's recommended maintenance schedule
• •Address warning signs early before they develop into major issues
• •Use quality parts and fluids recommended for your vehicle
• •Keep detailed records of all repairs and maintenance

• •OBD-II scanner
• •Socket set
• •Multimeter
• •Torque wrench
• •Funnel

• •Torque converter clutch solenoid
• •Transmission fluid (as specified)