my Tesla Model S Original (2012-2020) has a check engine light for C1063

Learn how to diagnose and fix C1063 brake system malfunction in Tesla Model S. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather tools including an OBD-II scanner, multimeter, socket set, and torque wrench.
• Ensure the vehicle is parked on a level surface and the parking brake is engaged.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Replace Brake Pressure Sensor

1. Locate the brake pressure sensor on the brake booster.
2. Disconnect the electrical connector from the brake pressure sensor.
3. Remove the mounting screws using a socket set.
4. Carefully pull the old sensor from the booster.
5. Install the new brake pressure sensor and secure it with the mounting screws, tightening to manufacturer specifications (typically around 10-15 Nm).
6. Reconnect the electrical connector.

3. Inspect and Replace Brake Booster (if necessary)

1. If the brake booster is found to be faulty, proceed to remove it.
2. Disconnect brake lines and any associated vacuum lines connected to the booster.
3. Remove the mounting bolts securing the brake booster to the firewall using a socket set.
4. Carefully pull the booster away from the firewall and replace with a new unit, ensuring proper alignment.
5. Install and tighten the mounting bolts to specification.
6. Reconnect all brake lines and vacuum lines securely.

4. System Check

1. Reconnect the negative battery terminal.
2. Use an OBD-II scanner to clear the error codes.
3. Start the vehicle and check for the check engine light; ensure it remains off.
4. Test the braking system to verify normal operation.