what does code B1202 mean for my Toyota RAV4 XA50 (2019-2024)?

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is off.
• Disconnect the battery to avoid any electrical issues during repairs.

2. Inspect A/C Control Unit

• Remove the dashboard panel to access the A/C control unit.
• Check for loose connections or damaged wiring.
• If damage is found, repair or replace the wiring/connectors as needed.

3. Test and Replace A/C Relay

• Locate the A/C relay in the fuse box.
• Use a multimeter to test the relay for continuity.
• If defective, replace the A/C relay with a new one (ensure it matches OEM specifications).

4. Check A/C Compressor

• Inspect the A/C compressor for any signs of damage or leaks.
• Ensure the electrical connections to the compressor are secure.
• If the compressor is faulty, proceed with removal and replacement:
  1. Disconnect the refrigerant lines (safely recover refrigerant).
  2. Unbolt the compressor using the appropriate socket set.
  3. Install the new compressor and reconnect refrigerant lines.

5. Recharge A/C System

• After repairs, recharge the A/C system with the correct type and amount of refrigerant as specified in the vehicle's manual.
• Start the engine and allow the A/C system to run, monitoring for proper operation.