how to resolve the B1325 code on my Tesla Outback 5th Generation (2015-2019)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface with the parking brake engaged.
• Disconnect the negative terminal of the 12V battery to prevent electrical shorts.

2. Inspect Battery Connections

• Sub-steps:
  1. Remove the battery cover if applicable.
  2. Check all battery terminals and connections for signs of corrosion.
  3. Clean terminals with a wire brush and reconnect securely.
• Tools Required: Wire brush, wrench set

3. Test Battery Voltage

• Sub-steps:
  1. Reconnect the negative terminal of the battery.
  2. Use a multimeter to measure the voltage across the battery terminals.
  3. Ensure the voltage is above 12.4V; if not, consider replacing the battery.
• Tools Required: Multimeter

4. Check Battery Management System (BMS)

• Sub-steps:
  1. Reconnect the battery if it was disconnected.
  2. Use the OBD-II scanner to access the BMS data.
  3. Clear the B1325 code and monitor for its return.
• Tools Required: OBD-II scanner

5. Update Software

• Sub-steps:
  1. Connect the vehicle to Wi-Fi.
  2. Check for software updates through the vehicle’s settings.
  3. Install any available updates to ensure the BMS functions correctly.
• Tools Required: None specifically, just need Wi-Fi access.