what does it mean if my Tesla Model S Original (2012-2020) has a C1145 error code

Learn how to diagnose and fix C1145 error code in Tesla Model S. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

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

2. Inspect and Replace Wheel Speed Sensors

• Sub-steps:
  1. Remove the wheel corresponding to the affected sensor (if determined).
     • Tools Required: Jack, jack stands, lug wrench
  2. Locate the wheel speed sensor mounted on the brake assembly.
  3. Disconnect the wiring connector from the sensor.
  4. Remove the retaining bolt securing the sensor in place.
  5. Carefully pull the sensor out of its mount.
  6. Install the new wheel speed sensor in the reverse order of removal.
     • Torque Specifications: Refer to the manufacturer's specifications for proper torque on the retaining bolt.
  7. Reconnect the wiring harness and ensure it is secure.

3. Check Wiring and Connectors

• Sub-steps:
  1. Reinspect the wiring harness for any signs of wear, fraying, or damage.
  2. Clean the connectors with electrical contact cleaner.
  3. If damage is found, repair or replace wiring as necessary.

4. Reconnect Battery and Test

• Sub-steps:
  1. Reconnect the negative battery terminal.
  2. Start the vehicle and check for warning lights on the dashboard.
  3. Perform a test drive to ensure the stability control system is functioning correctly.