95, 96, 97 lumina van auto start install

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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=7318
Printed Date: May 05, 2025 at 12:54 AM

Topic: 95, 96, 97 lumina van auto start install

Posted By: viper911
Subject: 95, 96, 97 lumina van auto start install
Date Posted: December 29, 2002 at 7:29 AM

Hi, i have all three to do this week, (family's christmas presants) ive put quiet a few auto starts on older vehicles before the gm passlock or whatever its called, now my question is what do i need to do and how can i find out if the vehicle is equipped with the passloc, also where can i find color codes of the vehicles in question?

Replies:

Posted By: Velocity Motors
Date Posted: December 29, 2002 at 9:49 AM

This is the wire colors for the 1995/1996 Lumina APV:

|       ITEM      |     WIRE COLOR     |POL|       WIRE LOCATION        |
|              12V|red                 |+  |ignition harness            |
|          STARTER|yellow              |+  |ignition harness            |
|         IGNITION|pink                |+  |ignition harness            |
|        ACCESSORY|orange              |+  |ignition harness            |
|       POWER LOCK|lt. blue            |+  |drivers door harness        |
|     POWER UNLOCK|white               |+  |drivers door harness        |
|       LOCK MOTOR|gray                |   |drivers door harness        |
|     UNLOCK MOTOR|tan                 |   |drivers door harness        |
|    DISARM DEFEAT|tan                 |   |passengers door harness     |
| PARKING LIGHTS +|brown               |   |headlight switch *1         |
|       HEADLIGHTS|yellow              |+  |headlight switch            |
|     DOOR TRIGGER|white               |-  |low in the drivers kick     |
| DOME SUPERVISION|gray                |-  |interior light switch       |
|  TRUNK/HATCH PIN|tied in with doors  |   |                            |
|TRNK/HTCH RELEASE|*3                  |   |                            |
|       TACHOMETER|pur/wht or white    |   |ECM *2                      |
|      SPEED SENSE|green               |4  |ECM *2                      |
|       BRAKE WIRE|white               |+  |brake switch                |
|     HORN TRIGGER|black               |-  |steering column             |
|           WIPERS|green               |+  |wiper switch                |
|  LF WINDOW UP/DN|blue - brown        |A  |drivers door switch         |
|  RF WINDOW UP/DN|lt. blue - tan      |A  |drivers door harness        |

Notes:*1 Also found low in the drivers kick panel. *2 The ECM is located behind the passenger side of the dash. *3 The power sliding door is operated (open and close) by a positive pulse on a dk. blue wire, at a module behind the glove box.

My notes do not tel me if the vehicle has VATS or not. It is simple to tell though. Check the shaft of the keys and if there is a chip on the end of the key ( closest to the head ) then you have VATS ). To bypass VATS go here: https://www.velocitymotorsport.com/install_notes/Chevy.htm and click on to VATS Bypass I & II.

The 1997 ( I do not think it was a Lumina, rather a Chevy Venture according to my notes.) Here is the wiring information regardless for the Venture. If this is not what you need, please post your request again:

The Venture did not come out with a chipped key until 1999 so you have nothing to worry about here.

Notes:*1 Main harness on the drivers side of engine on top of the manifold cover. *2 The BCM is located above the passenger side kick panel. *3 Also located at the firewall connector. *4 There are three separate door trigger wires. They are: tan for the drivers door, dk. blue for the passenger door and liftgate, and orange for the sliding door(s). Use all 3 wires and diode isolate each. *5 To operate the sliding door, give a negative trigger to a lt. blue wire in a large black connector just below the BCM.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: viper911
Date Posted: December 29, 2002 at 3:17 PM

so unless the key has a chip i have nothing to worry about

Posted By: viper911
Date Posted: December 29, 2002 at 7:22 PM

vats, this is the passlock system?

Posted By: Velocity Motors
Date Posted: December 29, 2002 at 9:08 PM

VATS is the first generation Passlock, yes. The VATS uses a resistor chip but the Passlock uses a RF signal to send it's code to the anti theft system.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: viper911
Date Posted: December 30, 2002 at 5:33 AM

when did the rf signal passlock come out?

Posted By: Velocity Motors
Date Posted: December 30, 2002 at 8:35 AM

Different vehicles had different launch dates. The Grand Am's came out in 1996 while the Sunfire's came out in 1995. Other vehicles from GM have the VATS in as late as 1998/99 before switching over the the Passlock I or II systems.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: viper911
Date Posted: December 30, 2002 at 12:19 PM

ok, im a little confused about the difference between the vaTS and passlock 1 and 2, my luminas should be ok as far as not having the passlock system i think, but im not sure about havein the vats system

Posted By: Velocity Motors
Date Posted: December 30, 2002 at 1:23 PM

If your key has a small chip embedded into the shaft then you have VATS on the car.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: viper911
Date Posted: December 30, 2002 at 1:38 PM

I understand that part, but from what i seen in an earlier post the vats and passloc are different? maybe i just missunderstood, but if they are different then what does the passloc do, i thaught that there had to be a passloc bypass modual wired into the vehicle to use the autostart?

Posted By: Velocity Motors
Date Posted: January 01, 2003 at 10:58 AM

This is a VATS System:

This system uses a resistor in the key, use a digital volt meter set to ohms and put 1 lead on each side of the vats chip in the center of the key, find a resistor to match your reading.

Locate the Orange or Black tube running down the steering column from the ignition switch. Cut open the tube to epose the passkey wires insie. Your resistor or trumpet should be within +/- 10 ohms of the key. Either of the passkey wires can be cut. GM uses only a fixed number of different resistors with their PASSKEY/VATS system, your measurement should correspond to one of the following values.

390 Ohms	1470 Ohms	4750 Ohms
520 Ohms	1800 Ohms	6040 Ohms
680 Ohms	2370 Ohms	7500 Ohms
885 Ohms	3010 Ohms	9530 Ohms
1130 Ohms	3740 Ohms	11800 Ohms

This is a Passlock I & II system:

In 1996 GM introduced the GM Passlock anti theft system. When a GM vehicle is equipped with the Passlock system, adding a remote car starter requires that the GM anti theft system is temporarily bypassed or disarmed. The Passlock passive antitheft security system resembles in some ways the GM V.A.T.S (Vehicle Anti Theft System) because it also uses resistor codes which must be authenticated by the Anti Theft security system in order to start the engine.

The Passlock Anti-Theft system involves resistor codes which are generated by resistors located in the ignition key cylinder switch. The GM Passlock system uses what is known as a Hall Effect Sensor to send a resistor code to the Passlock module. The resistor code is activated when the ignition key is physically rotated in the ignition switch. Depending on the model of GM vehicle, the actual resistor code is only introduced to the Passlock system when the ignition switch is turned to the ignition on (run) position or only when the ignition switch is turned to the start (crank) position.

The advantage of this technology is significant since the management system controls the fuel injection, timing and performance of the engine. An invalid resistor code allows the management system to completely close down the motor vehicle engine. This technology offers good basic engine immobilizing features for the general population. GM has developed a more sophisticated system called Passkey 3. Passkey 3 is a transponder (RFID) immobilizer system which offers major improvements over the Passlock and VATS anti theft systems because communication between the sensor of the key and the engine management system is accomplished by a system of codes dependent on the value of the ID transponder so that thieves cannot simply cut appropriate wires and bypass the communication system.

In all cases GM advanced vehicle security means adding a remote car starter to a vehicle equipped with a VATS, Passlock or Passkey type anti theft system is much more involved. To this end we have developed a complete line of installation kits that allow you to TEMPORARILY bypass the vehicle anti theft system when remote starting your vehicle. It doesn't matter what kind of car starter brand, these kits will work with ANY make or model remote car starter.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA