1. Disconnect the electrical connector: Locate the electrical connector attached to the wiper motor arm. This is usually a small, plastic connector. Gently squeeze the release tabs (they might be small and difficult to see) and pull the connector apart.
2. Remove the nut: Use a socket wrench (size will depend on your vehicle – check your owner's manual) to remove the nut securing the wiper arm to the wiper motor shaft. This nut is typically located where the wiper arm connects to the shaft.
3. Remove the wiper arm: Once the nut is removed, the wiper arm should pull straight off. It may be somewhat stiff; gently wiggle and pull it to detach it from the shaft. You might need to apply some force, but avoid damaging the wiper motor shaft.
4. Remove the wiper blade (optional): If you're also replacing the wiper blade, now's the time to do so. Most wiper blades have a release mechanism – a tab or button – that allows you to remove the blade from the arm.
Important Considerations:
* Safety First: Always disconnect the negative terminal of your car battery before beginning any work to prevent electrical shorts.
* Tools: You'll need a socket wrench (the correct size), possibly some pliers (if the connector is stubborn), and potentially a rag to clean up any debris.
* Rust and Corrosion: If the nut is seized due to rust or corrosion, you may need to use a penetrating lubricant (like WD-40) to loosen it. Allow it to soak in for a while before attempting to remove the nut. If it's still stuck, seek professional assistance to avoid damaging the wiper motor shaft.
* Take Pictures: Before you start disassembling anything, take pictures of the process. This will be extremely helpful in reassembling the wiper.
Remember, this is a general guide. Variations may exist depending on your specific RAV4 model. Always refer to your owner's manual for detailed instructions. If you are uncomfortable performing this task yourself, it's best to take your vehicle to a qualified mechanic.
