my Toyota Corolla E140 (2006-2013) key won't turn in the ignition what's wrong

Solution

1. Preparation

• Gather tools and materials required for the repair.
• Tools Required: Screwdriver set, needle-nose pliers, graphite lubricant, multimeter.
• Ensure the vehicle is in park (automatic) or neutral (manual) and the parking brake is engaged.

2. Address Steering Lock

• Attempt to gently turn the steering wheel left and right while trying to turn the key.
  • If the steering lock is engaged, this may allow the key to turn.

3. Inspect and Lubricate Ignition Cylinder

• Remove the ignition switch cover using a screwdriver.
• Apply a small amount of graphite lubricant into the ignition cylinder.
  • Insert and remove the key several times to help distribute the lubricant.

4. Replace Ignition Lock Cylinder (if necessary)

• If the key still does not turn, the ignition lock cylinder may need replacement.
• Disconnect the battery before proceeding.
• Remove the ignition switch cover and any retaining screws securing the ignition lock cylinder.
• Disconnect any electrical connectors attached to the ignition switch.
• Gently pull the old ignition lock cylinder out.
• Insert the new ignition lock cylinder into place and secure it with screws.
• Reconnect the electrical connectors and replace the ignition switch cover.