Key does not work security system is overriding start and alarm will not stop even if car is started
SOURCE: I changed my battery and now key won't start car.
needs a locksmith or dealer to flash the onboard computer to allow the keycode to be recognized by the transponder chip.
SOURCE: Can't start car even if i try the jumper cable.........
If you have a multimeter, connect it to your battery, and select an appropriate DC voltage range. On my multimeter, I use the 20volt setting.
If your battery shows 12-13.8 volts, then it is not the issue. If your battery voltage is low, then you will probably need a new battery. A flat battery can also indicate that the alternator is not recharging your battery properly, but it could also just mean that your battery is old and needs replacing.
If your engine wont turn over, and if your battery is good, it could be a faulty starter motor.
Those jump start packs need to be charged often, or the battery inside them can stop working. It is possible that your jump starter pack is also broken.
Try jump starting the car from another vehicle, with jumper leads. If you know your battery is dead, you could also just replace it with another one.
SOURCE: how to activate alarm 2001 bmw 325ix
locking and unlocking with the key is to deactivate the alarm not activate it, the alarm is activated every time the car is locked with the remote automatically, u need do nothing else
SOURCE: E36 BMW 318I CENTRAL LOCKING
try locking and unlocking the car with the key 3 times slowly ,other than that i have no idea ?? another trick is to disconnect battery and join the cables together for a few minutes to discharge any capacitors that may be holding a charge in the computer..Only other thing i can think of is the main dealers who have the right connectors and software to re set it all .sorry i havent been of any help
SOURCE: 1998 BMW 528i won't start. not even clicking from the starter!
Worse case senario.The computer has been blowen from the jump starting.It is common if the jump starting proceedure is not followed.
. This deactivates the alarm long enough for you to gain access to the vehicle. Then, place the key in the ignition and turn the key until it clicks once. This starts the car's battery, but doesn't ignite the engine. The LED light on the dashboard should stop blinking, indicating the alarm is temporarily disabled.
the box for the alarm under the dashboard on the driver's side of the car. Then, look for the override button on the box. Typically, the small button is either red or black. With the ignition key in the "on" position, press the override button and hold it in until the alarm chirps once. This disables the alarm until you manually reactivate it.
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