To find the likely culprit, you'll need to consult your owner's manual's fuse box diagram. Look for fuses related to:
* Power Door Locks: The trunk release often shares a circuit with the power door locks.
* Body Control Module (BCM): Many modern features, including trunk release, are controlled by the BCM. A faulty BCM could prevent the trunk from opening, though it's less likely a blown fuse in this case.
Troubleshooting steps:
1. Check the obvious: Make sure the trunk latch itself isn't frozen or jammed. Try to open it manually with the key if possible.
2. Consult your owner's manual: This is crucial. The fuse box diagram will show you where each fuse is located and what circuits they protect.
3. Test the fuses: Visually inspect the fuses listed above (power door locks, anything related to body electrical) for any blown fuses (a broken filament will be visible). Use a test light or multimeter to verify if they're truly blown before replacing. Don't just replace fuses randomly.
4. Check the button itself: The button might be faulty. Test for continuity with a multimeter (if you have the tools and experience).
5. Check wiring: If the fuses are good and the button is fine, there might be a break in the wiring to the trunk release mechanism. This requires more advanced troubleshooting.
If after checking fuses and the button, the trunk still doesn't release, you'll likely need to consult a qualified mechanic. The problem could be a more complex electrical issue or a problem with the trunk release mechanism itself.
