my Tesla Model S Original (2012-2020) shows B0282 error code, what does it mean?

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench
• Disconnect the vehicle's high-voltage battery and allow the system to discharge fully according to manufacturer guidelines.
• Ensure safety gear is worn, including gloves and goggles.

2. Inspect and Clean Battery Connections

• Remove the battery cover and access the terminal connections.
• Clean the terminals using a wire brush to remove any corrosion.
• Tighten the connections to the specified torque value as per manufacturer recommendations.
• Reconnect the terminals securely.

3. Check Battery Voltage

• Set the multimeter to measure DC voltage.
• Connect the multimeter leads to the battery terminals (positive to positive, negative to negative).
• Record the voltage reading; if it is below the minimum threshold specified in the service manual, consider replacing the battery.

4. Inspect Battery Cooling System

• Check the coolant level in the battery cooling system reservoir; top off if necessary with the recommended coolant.
• Inspect the cooling fans for functionality by running a diagnostic test to ensure they engage when the battery temperature rises.
• Replace any faulty components, such as fans or hoses, as needed.

5. Update Battery Management Software

• Connect the OBD-II scanner to the vehicle and check for available software updates.
• If an update is available, follow the manufacturer's instructions to update the battery management system software.
• Reconnect the high-voltage battery and perform a system reset.