It tells you in the repair manual and you need to have the original key.
To reset the fuel shut-off safety switch in a Ford Focus saloon, locate the switch, which is typically found in the trunk or near the driver's side footwell. Press the reset button on the switch until you hear a click. After resetting, turn the ignition key to the "On" position without starting the engine to allow the fuel system to pressurize. Finally, start the engine to ensure the system is functioning properly.
To reset the fuel pump on a 1998 Ford F-150, locate the fuel pump reset switch, also known as the inertia switch. This switch is typically found in the passenger side footwell, near the kick panel. Press the red button on the switch to reset it. After resetting, turn the ignition key to the "On" position for a few seconds to allow the fuel pump to prime before starting the engine.
To reset the immobilizer on a Ford Focus, first ensure that you have the correct key fob. Insert the key into the ignition and turn it to the "On" position without starting the engine. Wait for about 10 minutes until the security light turns off, then turn the key to the "Off" position and back to "On" again for another 10 minutes. Repeat this cycle three times; on the fourth cycle, the key should start the engine, indicating the immobilizer has been reset.
To reset the fuel pump switch on a 1997 Ford E150 van, locate the inertia switch, which is typically found in the passenger-side footwell or behind the kick panel. Press the red reset button on the switch until you hear a click. After resetting, turn the ignition key to the "on" position for a few seconds to allow the fuel system to pressurize before starting the engine. If the switch trips again, it may indicate an underlying issue that needs to be addressed.
Unhook your negative battery cable for about an hour. When you hook it back up, the computer should reset itself. Make sure your key is in the ignition. If not, there is a resetting sequence in your owner's manual that tells you how to mate the key to the ignition. Follow the instructions PRECISELY! You'll need an analog watch for timing the procedure, as it deals with seconds.
try to switch the car on until red lights comes on "do not start the engine" apply break twice " fully push the break with your foot " then switch the key off and remove the key from the switch .. this should help .. i hope
how to open and change the battery of ford focus 56 reg
You may have activated security system if theft light flashing when key is turned, needs reset.
Get the key
The alarm is reset with the remote or by unlocking the door with the key.The alarm is reset with the remote or by unlocking the door with the key.
the switch is probably stuck. try spraying silicone in key slot insert key and gently tap key with rubber hammer than try turning it.
If you don't see any gas leaking or smell gas , press the button on the top of the inertia switch if it has popped up . Turn your ignition key to the RUN position for a few seconds , turn the key off and recheck for any leaks or gas smell . If none , start your engine