how to fix P0021 camshaft timing code in my Volvo XC60 Second Generation (2018-2024)

Learn how to diagnose and fix P0021 camshaft timing code in Volvo XC60 (2018-2024). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.

Tools Required:

• OBD-II scanner
• Socket set
• Torque wrench
• Multimeter
• Screwdrivers

2. Check and Replace Engine Oil

• Sub-step 1: Remove the engine oil filler cap.
• Sub-step 2: Check the oil level using the dipstick. If low, add the appropriate oil type (consult owner’s manual for specifications).
• Sub-step 3: If the oil is dirty or past its change interval, perform an oil change.
  • Drain the old oil and replace the oil filter.
  • Add new engine oil (specification: typically 0W-20 or as recommended).

3. Inspect and Replace VVT Solenoid

• Sub-step 1: Locate the VVT solenoid (refer to the service manual for exact location).
• Sub-step 2: Disconnect the electrical connector from the VVT solenoid.
• Sub-step 3: Remove the mounting bolts using a socket set and pull the solenoid out.
• Sub-step 4: Install the new VVT solenoid, ensuring a proper seal.
• Sub-step 5: Torque the mounting bolts to the manufacturer’s specifications (refer to the service manual).

4. Reset the ECU

• Sub-step 1: Reconnect the negative battery terminal.
• Sub-step 2: Use an OBD-II scanner to clear the error codes.
• Sub-step 3: Start the engine and allow it to idle for a few minutes to check for code reappearance.