Troubleshooting and Resolving Trunk Not Opening Issue in 2020 Toyota Camry

Step 1: Inspect the Key Fob Battery

1. Symptoms: If the key fob is unresponsive for other locks, the battery may be low.
2. Action: Replace the key fob battery.
   • Tools Required: A small screwdriver (Phillips or flat-head, depending on the fob design), new battery (usually CR2032).
   • Instructions:
     1. Open the key fob using the small screwdriver.
     2. Replace the old battery with the new one, ensuring correct polarity (+/-).
     3. Reassemble the fob and test the trunk release.

Step 2: Check the Interior Trunk Release

1. Symptoms: The interior trunk release button is unresponsive.
2. Action: Test the interior trunk release.
   • Instructions:
     1. Ensure the vehicle is in the "On" position (engine running or ignition on).
     2. Press the trunk release button located on the driver's side panel.
     3. If it does not respond, check for blown fuses (see Step 3).

Step 3: Inspect Fuses

1. Symptoms: The trunk release system may be affected by a blown fuse.
2. Action: Check the fuses related to the trunk release.
   • Tools Required: Fuse puller or needle-nose pliers, a multimeter or fuse tester.
   • Instructions:
     1. Locate the fuse box (usually under the dashboard or in the engine compartment).
     2. Refer to the owner's manual for the specific fuse related to the trunk release (often labeled as "TRUNK" or "DOORS").
     3. Check the fuse for continuity using a multimeter or visually inspect for a broken filament.
     4. Replace any blown fuses and test the trunk release again.

Step 4: Inspect the Trunk Lock Actuator

1. Symptoms: The actuator may be damaged or malfunctioning.
2. Action: Test the trunk lock actuator.
   • Tools Required: Multimeter, socket set, trim removal tool.
   • Instructions:
     1. Access the trunk lock actuator by removing the trunk interior trim (use a trim removal tool).
     2. Disconnect the actuator’s electrical connector.
     3. Use a multimeter to check for voltage at the connector when the trunk release button is pressed.
     4. If there is voltage and the actuator does not activate, the actuator is likely faulty and needs replacement.

Step 5: Manually Open the Trunk

1. Symptoms: You need access to the trunk in case of emergency.
2. Action: Use the manual trunk release.
   • Instructions:
     1. Locate the manual emergency trunk release lever inside the trunk (if accessible).
     2. Pull the lever to open the trunk manually.
     3. If the lever is not accessible, consider removing the rear seat or accessing the trunk through the back seats depending on the model.

Repair Instructions

Step 1: Replace the Trunk Lock Actuator (if needed)

1. Tools Required: Socket set, trim removal tool, electrical connector cleaner.
2. Instructions:
   1. Disconnect the negative battery terminal to ensure safety.
   2. Remove the trunk interior trim panel to expose the actuator.
   3. Unplug the electrical connector from the faulty actuator.
   4. Remove the screws or bolts holding the actuator in place.
   5. Install the new actuator by reversing the removal process.
   6. Reconnect the electrical connector and test the trunk operation before reassembling the trim.

Step 2: Reassemble and Test

1. Reassembly: Once the repair is complete, reassemble any trim pieces removed during the inspection.
2. Test: Test the trunk operation using both the key fob and the interior release button.
3. Final Check: Ensure all electrical connections are secure, and the trunk closes properly.

By following these steps, you should be able to diagnose and resolve issues related to the trunk not opening on your 2020 Toyota Camry. If the problem persists, it may be advisable to consult a professional technician or visit a Toyota service center.