Question about 1997 BMW 7 Series

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The antenna on the 97 bmw 740 for immobilizer was disconnected then reconnected but now the car will not turn off as if the anti theft system is activated or the key is not seniding signals to computer to turn over the starter or spark to plugs or pump the fuel any ideas??

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  • marday21 Dec 07, 2008

    I tried that for 20 mins no luck thanks for the heads up

    416 434 6557 if anyone have more ideas or how to turn off the esw or that dam black box

  • marday21 Dec 08, 2008

    I tried the battery off for 12 hrs and still no luck any other ideas

  • Anonymous Feb 25, 2009

    does the 97 740 il have a antenna module?and if so where is it located.



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Try resettin the computer, disconnect your negative battery cable from your battery for about five minutes,

Posted on Dec 07, 2008

  • Big Poppa Marv
    Big Poppa Marv Dec 07, 2008

    make sure before you do this you have the security code for your radio.



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2004 Chevy aveo starts then kind of putts followed by shutting off just had the converter and O2 sensor replaced. The radio and lights work great car just won't stay running once u let go of the key

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I replaced immobilizer coil . still getting theft light code 11

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What is (P1612 code) vehicle immobilizer means?

An immobilizer is an electronic device fitted to an automobile which prevents the engine from running unless the correct key is present. This prevents the car from being hot wired after entry has been achieved.
The microcircuit inside the key is activated by a small electromagnetic field which induces current to flow inside the key body, which in turn broadcasts a unique binary code which is read by the automobile's Engine Control Module (ECM). When the ECM determines that the coded key is both current and valid, the ECM activates the fuel-injection sequence.
The immobilizer function of the Nissan Vehicle Immobilizer System (NVIS) or Nissan Anti-Theft System (NATS) consists of the following:
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Immobilizer won't reset on 2002 kia Rio

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Can you help me, anti-yhief cut power to engine and it won-t start back up

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I have a 2004 BMW Z4 and a light was left on and the battery died. I replaced the battery and when I turn the ignition all of the ligkts inside and out work. The locks work with the key remote and the top...

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It would have worked if the key was in the ignition when you connected the new battery.

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For 1995 and older models.
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1. Lock doors via key on Driver's door.2. Disconnect battery.3. Wait a couple minutes to let remaining voltage leak out of system.4. Reconnect battery.5. Unlock doors via key on Driver's door.

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It is probably not the anti theft system if it cranks over fast then slow it is your timing chain. If you want to try resetting the anti theft system disconnect the battery cables for 24 hours and reconnect them.

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