loganlott. I can't press the brake down, no power anywhere except for a blinking red light built in the dashboard. 04-23-2006, 04:28 PM . I thought getting a new battery would fix it, but the light is still blinking. It's a 2002 Dodge Ram 1500 Quad Cab. check your cables. 2002 dodge ram flashing security light - My 2002 Dodge RAM 1500 security light flashes constantly when the ignition is off. David Craig. 3 Answers. I just came home for lunch and went back to my 2002 Dodge Ram truck and it wouldn't do anything. (I figure I shorted something out due to a voltage spike). I drove truck home and turned it off. OWNER/MECHANIC. It is a 2005 Dodge Ram 1500 w/ Hemi engine. The truck runs fine but the interior lights will not come on when the door is opened unless the key is in the ig I drove truck home and turned it off. Came back out about 15min later and the red light was blinking and engine would do nothing. KManiac. 3 Answers. Red security light on dash is blinking and engine won't start or even turn over. took it out to make sure it was blown put it back in and reconnected the battery. I called the local dealership but they have no idea what's going on here and have obviously never heard of this. Associates. Is this giving me a code of some kind? 11,588 satisfied customers. I bought the truck used and never had any keylessentry buttons. That is the only way. 04-19-2006, 12:57 AM. I cannot start my 2007 dodge ram 1500 pickup. Tried to start my 2003 dodge ram 1500 will click one time when trying to engage starter , security light is blinking on dash ,owners manual says to reset with remote or use a valid sentry key ( don't know what that is ) when i try to start the truck something clicks and shuts down everything.... dash lights , starter clicks one time , then lights blink on dash,,,but no starting The red light was blinking (anti theft/security). You reset the "anti-theft" alarm by inserting the ignition key in the outside driver door lock, turn the key to lock, then turn the key to unlock. My original problem was that my radio suddenly died, so I thought it was probably the fuse. When driving down the road my truck will randomly turn itself off as if I turned the key off. It started up and now my security light is now blinking constantly. I dont have an alarm or a key with a chip in it. I don't have a fob and I used the same key a … read more. Came back out about 15min later and the red light was blinking and engine would do nothing. Red security light on dash is blinking and engine won't start or even turn over. 2002 dodge ram 1500 flashing red light and dead. The security light in the dash on my 2003 dodge ram 1500 is blinking and it won't start and nothing else will work. I disconnected the negative battery terminal then took off the fuse box cover and found the number 21 fuse. To my knowledge it doesn't have a security system on it,unless it … It seem that the anti theft system kicked in and will not let the vehicle start. It is a 2005 Dodge Ram 1500 w/ Hemi engine. 2007 dodge ram 1500: start my..anti theft system kicked..disconnected.