Question about 2007 GMC Acadia SLE

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Why is there no power to the theft deterrent module / anti theft module located at ignition?

I have a no start with this 07 acadia, anti-theft light is on solid on instrument cluster/dash. there is no power to the module. 3 wires go to module - red/white for power, black white for ground, and brown for data. In need of help please. is there a known broken wire or known fix for this issue, I cannot find anything on the tech forums. any help would be greatly apprechaited. Thanks.

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Not sure.Go to my.cardone.com It has GM Vehicle Thief Deterrent instructions,I hope you find the solution.

Posted on May 11, 2014

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The vehicle theft deterrent (VTD) system functions are provided by the theft deterrent control module. The VTD system prevents vehicle operation if a learned Passkey III (PK3) ignition key is not used to start the vehicle. Vehicles with steering column mounted ignition switches have the exciter integral with the theft deterrent control module which is located within the steering column. Vehicles with instrument panel mounted ignition switches have exciter modules separate from the theft deterrent control module with the vehicle wiring harness connecting the two. The PK3 key has a transponder embedded in the plastic head of the key. The exciter is an antenna which is made up of wire coils which surround the ignition lock cylinder. The PCM enables engine starting when it receives a learned fuel enable signal from the theft deterrent control module. The components of the VTD system are as follows:

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The security indicator is located in the clock on the top of the instrument panel. The light emitting diode (LED) displays the immobilizer system status. The immobilizer contains the LED driver hardware for direct connection of the LED.
Vehicle Theft Deterrent (VTD) Operation
The immobilizer system design prevents vehicle theft by interrupting the engine operation. The immobilizer system prevents the vehicle from starting. The engine operating functions interrupt if the immobilizer system does not recognize the transponder identification code of the ignition key. The immobilizer system and the content theft deterrent system do not interact. The system includes the following components:
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The ignition key


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The column-mounted theft deterrent module with integrated antenna


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The transponder


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Is that why you changed the ignition switch in the first place ? No crank - no start ? Did you check the park neutral switch ? Is there a theft light lit ? Theft deterrent relay ? You have to know how it works if you want to fix the problem . When you turn the key to start , the B+ power goes through the park neutral switch for automatic transmissions or the clutch start switch for manual transmissions , to the theft deterrent relay , to the theft deterrent module . If there is no anti-theft system problems the theft deterrent module energizes the relay ,closing the contacts inside sending B+ voltage to the S terminal on the starter solenoid . Go to www.bbbind.com/ for free wiring diagrams an check it out !

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Did you put the original anti-theft module on the new steering column ? Does yours have steering column mounted ignition switch ? Vehicles with steering column mounted ignition switches have the exciter integral with the theft deterrent control module (VTD) which is located within the steering column.

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Where is the ignition switch at , on the steering column ? Did you transfer the theft deterrent control module from the old column to the new one ? Do you have any lights lit on the dash , SECURITY ? Your car has a anti-theft system , the key has a transponder pellet imbedded in the head of it . Behind the plastic cover of the steering column ,around the ignition lock cylinder is the theft deterrent control module an antenna !
The vehicle theft deterrent (VTD) system functions are provided by the theft deterrent control module. The VTD system prevents vehicle operation if a valid (learned) transponder PASS-Key?®III (PK3) ignition key is not used to start the vehicle. The theft deterrent control module has an exciter that is part of the theft deterrent control module as an assembly. The PK3 key has a transponder embedded in the plastic head of the key. The exciter is an antenna which is made up of wire coils which surround the ignition lock cylinder. The PCM enables the engines starter and fuel delivery system when it receives a valid (learned) password from the theft deterrent control module via the class 2 serial data circuit. The components of the VTD system are as follows:

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1 Answer

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One is under the hood in the engine compartment an Rear Fuse Block
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Vehicle Theft Deterrent (VTD)Circuit Description
(VTD) Theft Deterrent System Components
Ignition Key (Transponder) The ignition key for the (VTD) theft deterrent system is a typical ignition key with a transponder pellet located in the plastic end of the key. The ignition key transponder value is used to determine if a valid ignition key is being used to start the vehicle, there are approximately three trillion different transponder values available. This vehicle has two types of ignition keys.
?€¢
Master key (black plastic end) which can start the vehicle and lock/unlock all door locks, all storage compartments and the rear compartment lid lock.


?€¢
Valet key (gray plastic end) which can start the vehicle and unlock/lock all doors, but can not unlock/lock the storage compartments, or rear compartment lid lock.

Important: The transponder values are not readable and can not be serviced separately.
Theft Deterrent Module The theft deterrent module contains the software for controlling the VTD System. The theft deterrent module uses the following inputs and outputs to control the VTD system.
Inputs ?€¢
Battery voltage from the underhood fuse block PCM/BATT fuse, circuit 240 (ORN).


?€¢
Ignition start voltage from the ignition switch, circuit 1390 (WHT).


?€¢
Ground, circuit 450 (BLK).
Outputs Password exchange with the PCM (fuel enable), class 2 message circuit 1807 (PPL).
Powertrain Control Module (PCM) The PCM verifies that the passwords received from the theft deterrent module via the class 2 serial data line are valid. If a password is invalid the PCM disables the fuel delivery system. If the password is valid the PCM enables the fuel delivery system.
Starter Relay The starter relay is controlled by the PCM module via class 2 serial data (CKT 1807 PPL). If the theft deterrent module measures the correct transponder value, the PCM module switches the starter enable control (CKT 447 YEL) to ground. The relay is energized if the ignition switch is in the START position and the gear selector is in the PARK or NEUTRAL positions.

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2 Answers

Where is the theft deterrent module located (VATS or anti-theft module) in GMC Acadia 2007?


the exact spot ,huh?

first off the FSM book and alldata.com has that, and vast more.

but you asked.

first off its many parts, why not post symptoms first then ask for Vats.

not the immoblizer but just theft

this is CDC system and is not VATS

the compenents are: as follows:

The content theft deterrent (CTD) system, when armed, is designed to deter vehicle content theft by pulsing the horns and exterior lamps for approximately 30 seconds when an unauthorized vehicle entry is detected. However, the CTD System does not affect engine starting.

An unauthorized entry can be any of the following with the CTD System armed:




  • When the liftgate or liftglass has been opened without the use of the keyless entry system or without first being unlocked.


  • When any door is opened without first being unlocked using the keyless entry transmitter.


  • When the driver door is opened without being first unlocked using the driver door cylinder.


The components of the system are:




  • The body control module


  • The door ajar switches


  • The driver door key cylinder switch


  • The liftgate/liftglass ajar switch


end quote.

more quotes under what to do first



Diagnostic Starting Point - Theft Deterrent
Diagnostic Starting Point - Theft Deterrent
Begin the system diagnosis with the Diagnostic System Check - Vehicle . The Diagnostic System Check will provide the following information:



  • The identification of the control modules which command the system


  • The ability of the control modules to communicate through the serial data circuit


  • The identification of any stored diagnostic trouble codes (DTCs) and their status


The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.



does this help, ????

May 10, 2014 | 2007 GMC Acadia

1 Answer

Where is the theft deterrent module location in 2007 GMC Acadia


Look under the passenger side seat. The module is located there.

May 10, 2014 | 2007 GMC Acadia SLE

1 Answer

Why won't my 2003 cadillac cts start with the new theft deterrent module?


there is one wyre you can cut coming from the computer check itrenet taht will disable antitheft everything else will work properly that will let you no if it is the anti theft

Mar 30, 2013 | Cars & Trucks

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