how to troubleshoot if my Tesla Model S Original (2012-2020) won’t charge properly?

Solution

1. Preparation

• Gather tools: OBD-II scanner, multimeter, cleaning cloth, and a flashlight.
• Ensure the vehicle is parked on a flat surface and the parking brake is engaged.

2. Inspect Charging Cable

• Unplug the charging cable from the vehicle and the power source.
• Visually inspect the cable for fraying or cuts.
• Use a multimeter to check for continuity. If damaged, replace the charging cable.

3. Clean Charging Port

• Use a cleaning cloth to gently wipe the charging port and remove any dust or debris.
• Inspect the pins inside the charging port for any signs of corrosion or damage.

4. Test Charging Station

• Connect a different Tesla vehicle to the same charging station to confirm functionality.
• If the second vehicle charges correctly, the issue may be with the Model S.

5. Update Software

• Connect the vehicle to Wi-Fi and check for any available software updates.
• Follow on-screen instructions to complete the update, as it may resolve charging issues.

6. Inspect Battery Management System

• Connect the OBD-II scanner to the vehicle's diagnostic port.
• Retrieve any error codes related to the battery or charging system.
• If any codes are present, refer to the Tesla service manual for troubleshooting specific codes.