I have a 2008 Tacoma with the factory alarm system in it. My battery recently died and I had to replace it. Since I replaced the battery the red LED alarm light will do two short flashes, stop, then two more flashes. It does this constantly, whether the car is on or off. The alarm is not arming when I lock the doors and I tested opening the doors from the inside after locking with the remote and the alarm didn't activate.
I'm not exactly sure which alarm system I have. Usually after I arm the system the horn honks once. The back of the remote has TRW on it.
Any help on fixing this so my car alarm arms itself again would be great.