Question about 2003 Audi A4 Cabriolet

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Parked car last night. Set the alarm. Now car will not start. It will turn over but not start. Is there a anti-theft system?

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Might be your Engine Position Sensor.

Posted on Apr 12, 2011

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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 do I disconnect the anti-theft system in my 96 Ford Escort?


on some cars and jeeps you can lock the car with the key and unlock it to disable the alarm. hope this helps.

Feb 14, 2013 | 1996 Ford Escort 4 Door

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2000 maxima anti theft system draining battery


fault on a live connection,but check all your earths aswell

Nov 01, 2012 | Nissan Cars & Trucks

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I hve a 2002 f150. i let my battery die. and when on a charger over night it will start and when not it wont. when not on a charger the anti theft light blinks more than normal. is it my battery or the...


it does sound like your battery is the problem but have a local shop test it and the charging system and the anti theft system connections maybe the alarm is draining the battery with a poor connection..

Feb 23, 2012 | 2002 Ford F150 Regular Cab

1 Answer

Wife used cig lighter adapter last night to blow up air mattress this morning new battery less than 1 month old wont start car. charged battery now when i turn the ignition key to start car the car alarm...


turn the igntion on, don't start, let it set for ten minutes Turn it off for 5 seconds then try to start it. If it lost memory for some reason and doesn't start . then do this three times , after the third time start it. that is the relearn procedure. Have a charger on it for the 30 minute relearn. Relearn is on for ten m off five s on ten off five on ten off five then start

Jul 02, 2011 | Chevrolet Lumina Cars & Trucks

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Truck won't start something to do with Anti-Theft tried removing positive cqble to reset alarm nothing, possible wire off Anti Theft Unit Truck drove fine parked for one hour and went to leave, the en


not positive but look in owner manual for a fuel pump reset button i had this problem at one time and that fixed it it is usualy under the dash area somewhere on the drivers side or in a kick panel (decorative cover on the side firewalls inside the cab)....good luck i hope this helps!

May 04, 2009 | 1993 Ford F150 SuperCab

1 Answer

Replaced the alternator, now anti theft won't disable


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.).

Apr 10, 2009 | 1997 Ford F150 Regular Cab

1 Answer

Car want start


yes cut the power to it

Jan 03, 2009 | 2001 Ford Focus

1 Answer

Anti theft alarm going on and off after replacing battery.


u can try to put key in drivers door lock & un lock it manually some times this will work

Dec 24, 2008 | 2006 Honda Civic Hybrid

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