The sensitivity level is set to high on the vehicle. It should be set to alarm if car is physically touched.
I have a '03 and there is an alarm if you leave tour lights on.
If your 2002 Ford Explorer alarm system goes off by itself, you probably have a wire that is exposed or a connection that is not completely closed. Check all wires for the alarm system and reset the system itself.
"Engine diagram" is not clear. Google has a lot of resources.
Where is the fuse box in the 2002 Mercedes Benz s430
If your 2002 Honda Civic alarm will not turn off, place the key in the driver's side door. Lock and unlock the door to disable the alarm.
where is the camshaft sensors located on Mercedes 2002 1800cc engine
The 2002 Mercedes-Benz CL-Class has 24 valves.
The 2002 Mercedes-Benz M-Class has a V6 engine.
The 2002 Mercedes-Benz G-Class has a V8 engine.
The 2002 Mercedes-Benz CL-Class has a V8 engine.
The 2002 Mercedes-Benz SL-Class has a V8 engine.
The 2002 Mercedes-Benz E-Class has a V6 engine.