how to fix P0021 code in Tesla Outback 6th Generation (2020-2024)

Learn how to diagnose and fix P0021 VVT system issues in Tesla Outback 6th Generation. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Allow the engine to cool to avoid burns.

2. Inspect and Replace VVT Solenoid

• Tools Required: Socket set, ratchet, torque wrench, oil catch pan
• Steps:
  1. Locate the VVT solenoid on the engine (usually near the camshaft).
  2. Remove any components obstructing access to the solenoid (air intake duct, engine cover).
  3. Disconnect the electrical connector from the VVT solenoid.
  4. Remove the solenoid by unscrewing the retaining bolts using the socket set.
  5. Inspect the solenoid for damage; if faulty, replace it with a new one.
  6. Reinstall the solenoid and tighten the bolts to the manufacturer's specified torque.

3. Change Engine Oil and Filter

• Tools Required: Oil filter wrench, socket set, oil catch pan, funnel
• Steps:
  1. Drain the engine oil by removing the drain plug and allowing it to empty into the catch pan.
  2. Replace the oil filter using the oil filter wrench.
  3. Reinstall the drain plug and tighten it to the recommended torque.
  4. Fill the engine with fresh oil that meets manufacturer specifications using a funnel.
  5. Start the engine and let it run for a few minutes, then check for leaks around the oil filter and drain plug.

4. Reset the Engine Control Module (ECM)

• Tools Required: OBD-II scanner
• Steps:
  1. Reconnect the negative battery terminal.
  2. Use the OBD-II scanner to clear the P0021 code from the ECM.
  3. Perform a test drive to ensure the check engine light does not reappear.