I have read some post regarding this. Do more search and you should find it. If not, let me know and I will try to remeber what I searched and hopefully give you the right pointer.
However, as I remebered, the guy said he removed the indicator lens and get access to the lock via the opening. Although you are suppose to remove the lens by accessing from inside the engine compartment, you can force it out by force.
Once you took the lens out, get a light and try find the cable to the lock, when you do, a pull or something should the job.
As I have said, these have been described in that post. just try find it and do what I said here. If still not help, let me know and I will try search the post for you.