Question about 1997 Ford F150 Regular Cab

1 Answer

Replaced the alternator, now anti theft won't disable

Alarm sounds, dash lights blink, key turns in ignition but will not start. Acts like there is a kill switch preventing the truck from starting. Do not have alarm remote.

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  • Ford Master
  • 4,388 Answers

The ignition lock anti-theft switch (19A438) detects if the ignition key cylinder is broken or "slam pulled" during a theft. The ignition lock anti-theft switch is always monitored by the remote anti-theft personality (RAP) module. This allows the alarm system to be triggered in the case that the ignition lock anti-theft switch detects tampering of the ignition key cylinder (even in the event that the alarm is not active at the time).
Refer to the Section 501-14B for more details on the keyless entry remote transmitter (15K601).
The door open warning lamp switch (14018) communicates to the RAP module through the generic electronic module (GEM). This input to the RAP will cause the anti-theft alarm to be sounded if the anti-theft alarm was armed.
The door disarm switches are assembled into both LH and RH lock sets. The door disarm switch must be triggered before the mechanical lock unlocks. This is to prevent the anti-theft alarm from activating when it should have been disarmed.
The RAP module controls the anti-theft system and is the brains of the keyless entry system. The RAP module communicates with the GEM to request that the interior lights be turned ON/OFF with use of the keyless entry remote transmitter, and the GEM communicates to the RAP to inform when the door is opened. Refer to Section 418-00 for inter-module communication.
The RAP module has three wire connectors attached to it:

  • The antenna for the keyless entry remote transmitter.
  • 26 circuit connector (C256).
  • 22 circuit connector (C257).
In addition to the perimeter alarm that uses the door open warning lamp switch, the RAP module also uses the ignition lock anti-theft switch and the autolock/relock feature to prevent theft of the vehicle. For a full description of the autolock/relock system, refer to Section 501-14B .
The THEFT LED is found on the instrument panel between the tachometer scale and the needle pivot point. The LED is illuminated during prearming and flashes when armed or triggered.
Prearming and Arming the System
The system can be armed if:
  • The ignition is OFF.
  • The PANIC alarm is OFF.
  • All doors are closed.
There are two ways to prearm the system:
  • Press the LOCK button on the transmitter.
  • Open a door, press the power door lock button and close the door.
After 30 seconds the system will be armed and the theft indicator in the cluster will flash every two seconds.
Disarming an Untriggered System
An armed system will be disarmed with one of these valid actions:
  1. Pressing the UNLOCK button on the transmitter.
  1. Placing a key in the door and turning to UNLOCK.
  1. Turning the key to RUN or ACC.
The anti-theft alarm can be triggered by the following conditions:
  • The ignition cylinder is damaged with or without the RAP being armed.
  • A door is opened without disarming the armed RAP module.
The remote transmitter can activate a panic alarm which is similar to an anti-theft alarm, but does not deactivate the starter or cause the theft indicator to flash.
Disarming a Triggered System
If the system has been triggered, (the horn honks, the lights flash, and an external starter interrupt relay is engaged), the system can be disarmed by:
  1. Pressing the UNLOCK or PANIC button on the transmitter.
  1. Putting a key in the door and unlocking the door.
  1. Turning the ignition to RUN/ACC (Turning the key to RUN/ACC will not disarm an alarm that has been triggered by the ignition lock anti-theft switch.).

Posted on Apr 15, 2009

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6ya6ya

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Posted on Jan 02, 2017

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Anonymous

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SOURCE: Isuzu Trooper anti-theft alarm

i put a new stereo in my 1998 isuzu trooper now the anti theft wont let car start what do i do

Posted on Feb 28, 2009

Walt Ziemke

  • 82 Answers

SOURCE: isuzu rodeo 2000, LS, anti-theft alarm needs to be reset

This has to do with the Auto's Computer system and should ONLY be done by a Factory Rep who knows what he/she are doing. not a home mechanic chore!!

Posted on Jul 16, 2010

ginko

Ginko

  • 19396 Answers

SOURCE: 1999 toyota camry anti theft

Try unplugging battery contact for two minutes.

Posted on Aug 09, 2008

Anonymous

  • 1 Answer

SOURCE: 1997 ES 300 How to reset anti-theft system when car won't start

With the doors shut, insert the key into the drivers door lock. Lock and unlock the door 5 times. This should reset the system. If that doesn't work you should contact a qualified repair shop.

Posted on Mar 20, 2009

Anonymous

  • 6 Answers

SOURCE: How to disable/reset anti theft system on a 98 Cavalier z24

there is a button under the steering wheel to the right. Push it, and it will alternate between "on" and "off" mode. try starting it after doing that.

If your problem isn't from accidentally having that button engaged you could have faulty wiring in the anti-theft system, and you should definately get that looked at. It could leave you stranded one day.

Posted on Feb 15, 2010

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1 Answer

99 explorer alarm disables. Motor dies


Anti-theft system can keep vehicle from starting , Alarm is for vehicle content theft , open door without key alarm sounds (horns) ! PATS - passive anti theft system PATS enables and disables the engine from starting ,it will not cause the engine to die ! You have some other kind of problem ! If the vehicle engine doesn't turn over an red light on top of dash flashes fast ,then you have anti-theft system problem !
PATS differs from the perimeter anti-theft system in that PATS enables and disables the engine from starting. If equipped, the perimeter anti-theft system protects the perimeter of the vehicle (doors, hood and trunk) and sounds an alarm.

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How can i find the anti theft reset button on 2006 taurus


this is for a 2003, might work.

1
Press the unlock button on your vehicle's key fob to deactivate the alarm. If you've misplaced your remote for the car, use the PATS programmed key to unlock the driver's side door. Then, put the key in the ignition and turn the key to the "on" position. The vehicle's battery should be on, but the engine shouldn't be running.

2
Locate the override button on the alarm box, beneath the driver's side of the dashboard. Press the button and hold it in until the alarm beeps one time. The LED light for the alarm should stop blinking, indicating the anti-theft system is disabled.

3
To reset the vehicle's alarm, put the PATS programmed key in the ignition and turn the key to the "on" position. Press the override button. When the alarm resets, it chirps two times and the LED light begins blinking.

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Anti theft wont let me start car


The problem may not be with anti-theft but with a bad fuel pump,cam/crank sensor etc. Also, you may try unlocking the drivers door with the key. On most cars that is the standard method for disabling the security system.

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My remote didn't open doors, on my1998 Saab 900S, so I used key to unlock manually. The alarm went off, and car won't start. When I open the door the anti theft alarm goes off again. This is E


Replace the battery in the remote, then reset the system.

Resetting a Vehicle Anti-Theft System
This is how you reset an anti theft system if you have the anti-theft light on, or your car is cranking, but you have no spark.

Doing a full reset of the anti-theft system.

Disconnect both battery leads for at least two hours.
Hold the negative and positive leads together for 5 minutes to fully discharge any power.
Put the key in the ignition, but not turned on. VERY IMPORTANT!
Connect the positive lead.
Connect the negative lead in one swift movement.
Wait 15 minutes for the system to fully reset.
Resetting Vehicle Anti Theft System

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2 Answers

89 firebird anti theft code won't let car start


If code 53 involves the PASS system for your car, the chip in the key has failed, or the sensor in the lock cylinder, or the control module.
The anti-theft system disables the starter and the fuel injectors. You could bypass those circuits to get the car started.

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How do I disarm anti theft device on a 2001 ford taurus


SEE THE STEPS WITH CAREFULLY AND COMMON SENSE:God bless you
Press the unlock button on your vehicle's key fob to deactivate the alarm. If you've misplaced your remote for the car, use the PATS programmed key to unlock the driver's side door. Then, put the key in the ignition and turn the key to the "on" position. The vehicle's battery should be on, but the engine shouldn't be running.

  • 2 Locate the override button on the alarm box, beneath the driver's side of the dashboard. Press the button and hold it in until the alarm beeps one time. The LED light for the alarm should stop blinking, indicating the anti-theft system is disabled.

  • 3 To reset the vehicle's alarm, put the PATS programmed key in the ignition and turn the key to the "on" position. Press the override button. When the alarm resets, it chirps two times and the LED light begins blinking.



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    Jul 25, 2012 | 2001 Ford Taurus

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    When you put the key in and you turn it over all the power comes on but won't turn over, is that a starter problem or an alternator problem?


    If you have power it would not be an alternator problem unless its not charging the battery and the battery is dead or too weak to turn the starter.
    You may have a VATS (Vehicle Anti Theft System) Pass KeyII at fault. Is there a Security light on in the dash?
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    Sep 19, 2011 | 1996 Pontiac Bonneville SE CA Value

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    Did you steal it? I heard about you thieves who steal cars then put new transmissions in!!
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