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Interior lights wont turn on when any door opens but do work when arming or disarming security system

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Several GM products, including the Chevrolet Impala and Malibu, the Oldsmobile Alero, the Pontiac Grand Prix, and Saturn Ion, have issues with the Security light coming on. This is many times an indication of a failing Body Control Module (BCM). Initially, the Security light will come on then go off, progressing to a constant on light, before the car will refuse to start. Other symptoms may include erratic action of electronics, a clicking sound coming from the glove box, and the air conditioning failing to blow cold air. I recommend a shop that specializes in the electronic systems of vehicles to diagnosis and make the necessary repairs. They should keep the car until they replicate the symptoms described. A new BCM from GM should cost about $230; plan on another $200 for them to diagnose the problem, replace the unit, and program the new unit. The dealers quote between $700 and $1,100 for the same repair. My experience and the experiences I have read on the internet, indicate the new BCM should last only about a year.

Posted on Aug 14, 2009

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Service immobilizer light is on an car wont start. It's a 2004 Pacifica


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Electrical • Vehicle Theft Security • Description Report a problem with this article

DESCRIPTION

VEHICLE THEFT SECURITY SYSTEM

The Vehicle Theft Security System (VTSS) is designed to protect against whole vehicle theft. The system monitors vehicle doors, and ignition action for unauthorized operation.
The alarm activates:
  • Sounding of the horn
  • Flashing of the headlamps/park/tail lamps
  • An engine kill feature (with SKIS)

SENTRY KEY IMMOBILIZER SYSTEM

The Sentry Key Immobilizer System (SKIS) is designed to provide passive protection against unauthorized vehicle use by disabling the engine, after two (2) seconds of running, whenever an invalid key is used to start the vehicle. The SKIS is active whenever the ignition is on and does not require any customer intervention. The primary components of the system are the Sentry Key Remote Entry Module (SKREEM), Sentry Key (ignition key with a transponder molded into the head), indicator light, Body Control Module (BCM), and the Next Generation Controller (NGC). The SKREEM is mounted on the ignition switch/lock cylinder assembly with the molded, integral antenna mounted around the ignition housing. The indicator light, is located instrument panel switch pod, just to the right of the instrument cluster.
Electrical • Vehicle Theft Security • Operation Report a problem with this article

OPERATION

VEHICLE THEFT SECURITY SYSTEM

Upon failure of proper SKREEM communication to the Next Generation Controller (NGC), the NGC will shut off fuel after two seconds of run time. The engine will not re-crank on the key cycle that the failure occurred, a full key down sequence must be performed for the engine to crank again. After six consecutive fuel shut-offs, the engine will no longer crank on subsequent key cycles. The failure must be corrected and a valid communication process between the SKREEM and the NGC must occur for the engine to crank and start again.
The electronics for the VTSS are part of the Body Control Module (BCM). The system is armed when the vehicle is locked using the:
  • Power door lock switches (with any door ajar)
  • Remote Keyless Entry transmitter.
  • Door Cylinder Lock Switches.
For vehicles equipped with SKIS, the doors do not have to be locked to enable the fuel shut off feature.
After the vehicle is locked and the last door is closed, the set LED indicator in the instrument panel switch pod will flash quickly for 16 seconds, indicating that arming is in progress. If no monitored systems are activated during this period, the system will arm and the LED will flash at a .5 Hertz (Hz) rate. If the liftgate is open, the LED will change its flash rate.
This indicates that the system is armed. If fault is detected on the driver key cylinder input, the indicator LED will remain solid during the arming process, although the system will still arm. If the indicator LED does not illuminate at all upon door closing it indicates that the system is not arming.
Passive disarming occurs upon normal vehicle entry by unlocking either door with the ignition key/remote transmitter. This disarming will also halt the alarm once it has been activated.
A tamper alert exists to notify the driver that the VTSS had been activated. This alert consists of 3 horn pulses when the vehicle is disarmed.
NOTE: The VTSS will not arm by pushing down the door lock mechanism. This will manually override the system.
For Door Cylinder Lock Switch service, (Refer to 8 - ELECTRICAL/POWER LOCKS/DOOR CYLINDER LOCK/UNLOCK SWITCH - REMOVAL).
If the VTSS is triggered, the horn will pulse, headlamps/marker lamps will flash, and the VTSS warning lamp will flash. If BCM determines the threat to be false and the VTSS is not triggered again, the system will shut down and rearm itself after three minutes. If a trigger is still active, the alarm will continue for an additional 15 minutes without the horn. The VTSS monitors the passenger compartment.
NOTE: System will not arm if passenger compartment is not secure.

ARMING THE VTSS - METHOD A

  1. With the key removed from the ignition lock and any door open (excluding liftgate), actuate one of the following:
  • Power door lock button to LOCK,
  • Key fob LOCK button
  • Driver door lock key cylinder to locked position.
  • Close all opened doors. Liftgate can remain open.
  • After the last door is closed, an arming time-out period of sixteen seconds will start, then the VTSS will become armed.

    ARMING THE VTSS - METHOD B

    Actuating the key fob transmitter LOCK button, key locking the front doors with the doors closed and the ignition locked will begin the arming time-out period. If method A, 16 second time-out sequence was in process when method B was actuated, the 16 second time-out will restart from the time of the second actuation.
    If the security lamp does not illuminate at all upon final door closure, it indicates that the system is not arming.
    The current VTSS status armed or disarmed shall be maintained in memory to prevent battery disconnects from disarming the system.

    TRIGGERING THE VTSS

    After the VTSS is armed, the following actions will trigger the alarm:
    • Opening any door (excluding liftgate).
    • Turning the ignition to the RUN position.
  • NOTE: When the VTSS is ARMED, the interior power door lock switch ?UNLOCK? will be disabled until the vehicle is disarmed.
    CAUTION: The VTSS indicator LED will trigger and engine will continue to run if the vehicle is equipped with SKIS and the proper key is used to start the vehicle. This condition will occur if the VTSS has been triggered. If valid key is used, VTSS will disarm.

    CENTRAL LOCKING/UNLOCKING

    This vehicle theft security system feature allows you lock all the doors with the key by using the drivers door lock cylinder.
    All vehicle doors and liftgate are locked with the first turn of the key to the LOCK position from the drivers door. A double activation feature of central unlocking requires you to turn the key in the door lock cylinder to the unlock position two times within two seconds to UNLOCK all vehicle doors at once.
    The first turn of the key in the door lock cylinder will disarm the system (the driver door cylinder lock switch connected to the back of the driver door lock cylinder) and unlock your drivers door. The second actuation within two seconds will then unlock all doors and the liftgate.

    SENTRY KEY IMMOBILIZER SYSTEM

    The SKIS includes keys from the factory which are pre-programmed. Each SKIM will recognize a maximum of eight Sentry Keys. If the customer would like to own additional keys other than those provided with the vehicle, they can be purchased from any authorized dealer. These keys must be programmed to the SKREEM on the vehicle in order for the system to recognize them as valid keys. This can be done by the dealer with a DRB III® scan tool or by a customer if this feature is available in their market and they have two (2) valid keys already available to them. The SKIS performs a self-test each time the ignition switch is turned to the ON position and will store Diagnostic Trouble Codes (DTC's) if a system malfunction is detected. The SKIS can be diagnosed and any stored DTC's can be retrieved using a DRB III® scan tool as described in the appropriate Body Diagnostic Procedures manual.
    With the light being on there is a code stored in the computer that controls anti-theft , Your best bet would be to take your vehicle to the dealer !




    Aug 20, 2016 | Cars & Trucks

    2 Answers

    How do you turn off an alarm for a 2005 Saturn Ion


    Disarming an Armed System/Silencing an Alarm
    If system arming has been requested by the keyless entry transmitter, it must be disarmed.
    Important: Using the power door unlock switch or manually unlocking the doors does not disable the CTD armed mode. Also, disconnecting the battery or pulling fuses does not disable the armed mode, since the BCM stores the CTD mode status in memory.
    ?€¢
    To disarm the CTD system in arm pending mode, SECURITY indicator flashing and doors open, perform 1 of the following:


    -
    Press the UNLOCK button on the keyless entry transmitter.


    -
    Insert a valid key into the ignition and start the vehicle.


    ?€¢
    To disarm the CTD system in the armed mode:


    -
    Press the UNLOCK button on the keyless entry transmitter.


    -
    Insert a valid key into the ignition and start the vehicle.


    ?€¢
    To disarm the CTD system when activated, alarming mode.


    -
    Press the UNLOCK button on the keyless entry transmitter.


    -
    Insert a valid key into the ignition and start the vehicle.

    Jun 24, 2016 | 2005 Saturn ION

    1 Answer

    Security system reset


    You can usually reset the alarm by unlocking the car using the key in the drivers door.if that doesn't work the alarm module is usually in the drivers kick panel area and unpluging it will usually disarm.all this if its a factory system. If aftermarket just look for the alarm brain and unplug it till you can get it to a stereo shop.

    Feb 13, 2014 | 1995 Mitsubishi Galant

    1 Answer

    The alarm system has activated and we cannot disarm the system via the Remote Key Fob or by key at the doors or hatchback. Tried disconnecting battery same problem. When the doors open the system...


    Hi Edward:
    In dashboard, your THEFT warning light is blinking? If the answer is yes, your antotheft system is activated and will need restart and resynchonized. This occurs when battery is disconneting or other un-authorized key is used.

    Vehicles equipped with Vehicle Theft Security System (VTSS) are protected from vehicle theft andunauthorized entry. VTSS system monitors vehicle doors, hood, liftgate and ignition. If an attempt is made toenter or operate vehicle without proper disarming of system, vehicle horn will sound, headlights, taillights andparking lights will flash, and engine will be prevented from running.

    VTSS system arms when ignition is off, vehicle is exited, door is locked using power door locks and door isclosed. Alternatively a remote keyless entry transmitter can be used to arm system. A security light on panelwill flash for 15 seconds to indicate system is arming. At the end of 15 seconds, if no door, hood or tailgate isopened, system is armed.

    If alarm is triggered, horn will sound for 3 minutes, and lights will flash for an additional 15 minutes. If hornsounds 3 times when either front door is unlocked, vehicle has been tampered with (tamper alert). If doors arelocked manually or with key, system will not arm (manual override). If an unauthorized entry does occur, VTSSsystem signals Powertrain Control Module (PCM) to prevent vehicle from being driven. PCM reduces injectorpulse width to zero, causing a start and stall condition.

    System can be disarmed with the keyless entry transmitter, or by using key to enter vehicle. In both instances, if alarm was activated, vehicle alarm will be terminated. If battery is disconnected and reconnected, alarm will beactivated and it will be necessary to disarm system as indicated.

    Please, send us some email account to send you this procedure in PDF format file.

    Feb 08, 2012 | 1996 Jeep Grand Cherokee

    1 Answer

    I have a viper alarm on my car that wont shut off nor i cant start the car..and i have tried the button under my dash, how Can i shut it off??


    was it a professional or shade tree install? the following is off vipers website:
    disarming without a remote control
    This feature allows you to disarm the security system without the
    Remote Control should it be lost, damaged, or disabled. In order to
    disarm the system without a remote remote control, you must have
    the vehicle’s ignition key and know where the Valet button is
    located. Be sure to check with the installer for the location and the
    number of presses of the Valet button required to disarm the system.
    To disarm the security system,
    turn the ignition to the ON position.
    Press the Valet button the
    preset number of times (one to
    five times) within 15 seconds. After five seconds the system will
    disarm. If the system does not disarm, you may have waited too long;
    turn the ignition off and on and try again.
    if that doesn't work try this other

    valet mode
    You can prevent your security system from automatically arming
    and triggering by using Valet Mode. This is very useful when
    washing the vehicle or having it serviced. In Valet Mode, the
    security system will not arm, even with the Remote Control, but
    all convenience functions (door locks, trunk release, etc.) will
    continue to work normally.
    To enter or exit Valet Mode:
    1. Turn the ignition on.
    2. Turn the ignition off.
    3. Press and release the Valet
    button within 10 seconds.
    The status LED will light solidly if you are entering Valet Mode,
    and it will go out if you are exiting Valet Mode.

    May 08, 2010 | 1994 Honda Civic

    2 Answers

    How do i reset my alarm on a 97 jeep Grand


    Here is excerpt from the 1998 Jeep Grand Cherokee Service Manual ... i know you posted under 1997 JGC but this information may be helpful ... by "reset alarm" i believe you meant disarming the alarm?

    Arming
    Passive arming of the Vehicle Theft Security System (VTSS) occurs when the vehicle is exited with the key removed from the ignition switch, the headlamps are turned off, and the doors are locked using power lock switch. The power lock switch will not function if the key is in the ignition switch or the headlamps are on with the driver’s door open. The VTSS will not arm if either front door or the liftgate are locked using the key in the lock cylinder.
    Active arming of the VTSS occurs when the Remote Keyless Entry (RKE) transmitter is used to lock the vehicle, even if the doors and/or the liftgate are open when the RKE transmitter Lock button is depressed. However, the VTSS arming will not be complete until all the doors and the liftgate are closed.
    Following successful passive or active VTSS arming, the VTSS set lamp on the top of the instrument panel will flash rapidly for about 15 seconds after the illuminated entry system times out. This indicates that the VTSS arming is in progress. If the light stays on steadily during the arming, it indicates that the hood switch is closed (the hood is open). The VTSS will still arm if the hood is open, but the engine compartment will not be protected. Once the 15 second arming function is complete, the set lamp will flash at a slower rate to indicate that the VTSS is armed. Disarming Passive disarming of the Vehicle Theft Security Sytem (VTSS) occurs when the vehicle is unlocked using the key to unlock either front door or the liftgate. Active disarming of the VTSS occurs when the vehicle is unlocked by depressing the Unlock button of the Remote Keyless Entry (RKE) transmitter. Once the alarm has been activated (horn sounding, exterior lights flashing, and the the engine no-run feature), either disarming method will also deactivate the alarm. Depressing the Panic button on the RKE transmitter will also disarm the VTSS, but the horm will sound and teh exterior lamps will flash for about three minutes as a part of the Panic feature function. ..." And as an additional note, if you have the courtesy interior lights set at 30 seconds like i do, you have to wait until lights go out (with alarm still sounding) before you can disarm the alarm via passive disarm method... what a pain when you don't have the actual RKE handy... Good Luck!

    Feb 14, 2010 | 1997 Jeep Grand Cherokee

    3 Answers

    98 Dodge Durango no electrical power


    When the armed Vehicle Theft Security System (VTSS) senses that the battery has been disconnected and reconnected, it enters its power-up mode. In the power-up mode the alarm system remains armed following a battery failure or disconnect. If the VTSS was armed prior to a battery disconnect or failure, the system will have to be actively or passively disarmed after the battery is reconnected. The alarm can be disarmed by locking the vehicle and turning the drivers door lock to the lock (arm) position. Wait a few minutes then unlock (disarm) the drivers door and the vehicle should start.
    If the VTSS has been disabled in the high-line Central Timer Module (CTM), the VTSS feature must be re-enabled using the Chrysler DRB scan tool. The clicking you heard was probably from the CTM located behind the glove box.

    Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

    Apr 28, 2009 | 1999 Dodge Durango

    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

    How can I reset my Factory Alarm on my Jeep it wont run


    Alarm Module Reset Procedure
    NOTE: This information applies to a Vehicle Theft Security System (VTSS) that was armed when the battery was disconnected and reconnected.
    When the armed VTSS senses that the battery has been disconnected and reconnected, it enters its power-up mode. In the power-up mode the alarm system remains armed following a battery failure or disconnect. If the VTSS was armed prior to a battery disconnect or failure, the system will have to be actively or passively disarmed following a battery reconnection.
    The power-up mode will also apply if the battery goes dead while the system is armed and battery jump-starting is attempted. The engine no-run feature will prevent the engine from starting until the alarm system has been actively or passively disarmed.
    Passive disarming of the Vehicle Theft Security System (VTSS) occurs when the vehicle is unlocked using the key to unlock either front door or the lift gate. Active disarming of the VTSS occurs when the vehicle is unlocked by depressing the Unlock button of the Remote Keyless Entry (RKE) transmitter.
    Once the alarm has been activated (horn sounding, lights flashing, and the engine no-run feature), either disarming method will deactivate the alarm.
    Depressing the Panic button (if equipped) on the RKE transmitter will also disarm the VTSS, but the horn will sound and the lights will flash for about three minutes as part of the Panic feature. The horn and lights can be stopped by pressing any of the RKE transmitter's buttons or driving the vehicle above 15 mph.

    Jan 28, 2009 | 1999 Jeep Grand Cherokee

    1 Answer

    Lost door lock remote for 2001 Nissan Xterra.


    You don't want to turn the security system completely off, besides there really is no need to. To arm and disarm the vehicle simply use the key in the drivers door. When you turn the key and lock the car the system will arm after about 30 seconds. When you come back to the car and unlock the car with the drivers door lock cylinder the system will unarm, just the same as if you were using the remote. If the system is unarmed and it still wont start you probably have a NATS issue with the key. This is different than simply disarming. You can't shut off or disarm the NATS system.

    Nov 29, 2008 | 2001 Nissan Xterra

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