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Tacoma won't start after replacing battery

The theft prevention system does not turn off after battery replacement

Posted by Anonymous on


6 Suggested Answers

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Posted on Jan 02, 2017

  • 8 Answers

SOURCE: 1997 toyota 4runner anti theft system prevent ignition. How do we deactivate anti theft system.

you have to call tyota and thet have to send you a new computer

Posted on May 25, 2009


SOURCE: I replaced the starter of

For purposes of this response, I will assume that the intermittent start issue is what originally prompted the replacement of the starter. Lubricate your ignition switch with spray lubricant. If that does not solve the problem, check for continuity at the ignition switch connector under the dash panel. If continuity does not test ok at the connector, replace the ignition switch. If continuity of the ignition switch tests ok, replace the ignition relay, and that should solve the issue.

In the case where the intermittent start issue was not present prior to the starter's replacement, before checking all of the items previously enumerated, make certain that the connections to the starter solenoid are clean and properly tightened. Again, IF the problem of intermittent starting did not exist previously, it could be either a faulty connection at the starter or a defective starter solenoid.

Posted on Jul 05, 2011

  • 408 Answers

SOURCE: I just purchased a 2008

If the smart key battery gets low to where it won't start the car you can hold the smart key with the logo facing the start button close to the button then push it to start the engine.

Posted on Aug 24, 2011

Mr BrokRench
  • 1623 Answers

SOURCE: my battery cable came undone and now my car wont start i know it has something to do with my anti theft system how do i reset it or whatever i just need to get my car started.

Hello Jaclyn...Look under the dash area for a button or, a toggle (valet)
switch. When you locate it, turn on the ignition key, press and hold in the button (little spring loaded micro button, red or black possibly)
until the alarm chirps 1 time. This should over ride the system, and only the keyless entry part, if installed, would still be operating....The LED light in the dash should also go on solid....At this point. the alarm would have reset.
If this had a starter kill relay installed it would now be opened, and the engine would turn over when tried.

You would repeat these steps to go back to user mode to see if this was corrected...i hope this information is helpful...Happy Holidays.


Posted on Nov 24, 2011

  • 147 Answers

SOURCE: My car won't start. The battery is good and the starter is doing it's job. The fuel filter has been replaced. The car will start with starter fluid and run when revved but won't start o

check fuel pump fuse and relay also the fuel injection fuse and ecu fuse, if they are ok remove the back seat and you will see a cover remove the cover and check for voltage at the pump plug and ground, you hear the pump work if not need new pump

Posted on Apr 07, 2012

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My ford Taurus won't start, I replaced the battery and now the anti theft system kills the engine

replacing battery more likely erase ECM to start vechicle let enginet idle until ECM relearn memory.your vechicle has to complete full drive cycle before ECM MEMORY return if not let dealership reset engine idle.

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My 2001 toyota Tacoma won't start. I was cleaning

Try putting the key in the driver door lock and turning from lock to unlock. That should dissable the factory alarm system. You may have to do it a few times before it works.

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Starter won't start on 86 buick regal FI 3.8 L already replaced starter & verified all fuses ??

i finally fixed this one.apparently the theft prevention system was no longer able to measure the resistor in my key.That thing that everyone refers to as a "chip" in the key is only a resistor,one of like 10 or 12 std values that computer is set to recognize. measured key res with meter, cut wires running to ign key contacts that read key and inserted a res = res meas on key.problem solved,theft prevention perm. bypassed! read somewhere the only ones this system prevents from starting car is the owner when it starts true

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Chevy Malibu LS (V6-3.1 L) won't start or starts up and IMMEDIATELY dies, how can I diagnose the problem?

Your car starts and dies due to the failing antitheft system. Your vehicle is not receiving the "fuel enable" signal that it needs to keep running. So the injectors get turned to off to prevent theft. You will need to diagnose which part of the antitheft system is failing. Or bypass the entire security system. This link will help you understand the problem, and depending on the year of your vehicle, possibly a good bypass solution.

May 18, 2012 | Cars & Trucks

1 Answer

The 'theft system' light does not turn off with the key in the run position on my 1999 chevy cavalier. car won't start, it won't even crank over. the battery and the starter are brand

try locking your car with the key and unlocking it with the key, leave it for 30 second or so between the locking and unlocking , the car thinks some one has tampered with it

Mar 18, 2012 | 1998 Chevrolet Cavalier

1 Answer

Had a new alternator, battery and starter and my truck still won't start? What do you think is the problem?

GM vehicles are notorious for failing anti theft systems. When they fail, it turns off the starter to prevent theft even tho nobody is stealing the vehicle. Look at this link. Explains the problem and depending on the year, **** offer a solution

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1 Answer

Replaced ignition switch in 1999 chevy cavaliar rs, anti-theft light comes on and stays on and won't allow car to start and remain on or run

You have to do a relearn procedure on the anti-theft system:

Attempt to start the vehicle. Leave the ignition on until the THEFT SYSTEM indicator turns off (about 10 minutes). Turn the ignition switch off. Leave the ignition switch off with key in for about 10 minutes. Attempt to start vehicle.

May 24, 2011 | 1996 Chevrolet Cavalier

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