how to fix C1200 code in Tesla Model S Original (2012-2020)

Learn how to diagnose and fix C1200 brake issue in Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and equipment.
• Ensure the vehicle is parked on a level surface, and the ignition is in the off position.
• Disconnect the negative terminal of the battery to prevent accidental shorts.

2. Inspect Brake Pedal Position Sensor

• Locate the brake pedal position sensor, usually mounted near the brake pedal assembly.
• Disconnect the wiring harness from the sensor.
• Remove the sensor from its mounting bracket (typically held by screws or clips).
• Inspect the sensor for physical damage and ensure the connector is clean and free of corrosion.

3. Replace or Repair the Brake Pedal Position Sensor

• If the sensor is faulty, replace it with a new unit. Ensure the new sensor is compatible with the Tesla Model S (2012-2020).
• Install the new sensor by reversing the removal steps. Tighten screws to the manufacturer's specifications (typically around 5-7 Nm).

4. Check Brake Control Module Connections

• Inspect the connections of the brake control module located near the brake assembly.
• Ensure all connectors are seated properly and free from corrosion.
• If necessary, clean connectors with electronic cleaner and reconnect.

5. Reconnect Battery and Clear Codes

• Reconnect the negative terminal of the battery.
• Use an OBD-II scanner to clear any fault codes from the system.
• Start the vehicle and check if the C1200 code reappears.