Tired of this stupid passlock, security thing.

[525Todd]

I kow everyone says to get the body codes read, but noone local has a body scanner. The Chevy dealer guy looked at me like I was stupid when I asked if they had a body code scanner. I want to bypass it ALL. I want it to function like a normal car. I want the theft crap bypassed. I want to not have to worry if its throwing a body code or not. Where can I buy one of these little devices I have heard about? Thanks in advance for any help.

[525Todd]

Forgot to mention that it was a 1998 Olds Bravada.........

[MT-2500]

What anti theft system have you got?
Does it have the pellet in the ign key?
Have you got any after market remote start stuff on it?

[MT-2500]

What is it doing or not doing.
Has any pcm or body module been replaced or any dead battery or electrical repairs on it?
Have you tried the relearn procedure on it?

[MT-2500]

Here is some interesting reading.
http://www.automotiveforums.com/vbul...d.php?t=454520
But remember there is several different anti theft systems on them and trying to work around the different ones is a different ball of wax.

[ericn1300]

here's a link for how to bypass it completely. i did it in the church parking lot and it only took a $1.99 part and under 15 mins.

http://www.12vp.com/info_resistors.htm

[MT-2500]

Originally Posted by ericn1300

here's a link for how to bypass it completely. i did it in the church parking lot and it only took a $1.99 part and under 15 mins.

http://www.12vp.com/info_resistors.htm

I think that old resister rewire is for the vats system.

Here is a by pass for the newer systems.

Here is a re-write of the GM upfitter bulletins ( http://www.gmupfitter.com/publicat/bull/bull2wsA.pdf and http://www.gmupfitter.com/publicat/bull/bull26.pdf ) so that we can more readily apply it to our cars! There is no need to add a remote starter.



PASSLOCK I or II DISABLEMENT

The following is a procedure to disable Passlock I or II Systems for vehicles in which remote start/stop system installations are required. This procedure is required because a remote start system will not function with the current Theft Deterrent System (Passlock) which is included on many 1996 and up GM vehicles.

Please note that this modification is intended to be used only in conjunction with the installation of a remote start/stop system and does not provide a procedure to install a remote start/stop system.

CAUSE
If an attempt is made to start a vehicle by a means other than a key rotation in the ignition switch, the Body Control Module (BCM) will interpret this start as a vehicle theft and disable the fuel injectors.

CORRECTION
A minor wiring modification may be made to allow the vehicle to be started remotely. This modification includes adding a switch to allow the customer to select “ON” to disable Passlock or “OFF” for normal Passlock operation.

CAUTION: When this modification is performed and the switch is set to the ON position, the theft deterrent feature will be disabled. When the theft deterrent is disabled the SECURITY or THEFT telltale will light up indicating that the theft deterrent system is NOT functioning.

PASSLOCK MODIFICATION
Refer to appropriate GM service manuals and/or SVMQP Electrical Guideline Manual for instruction on splicing and electrical connections.
1. Select a suitable on-off switch (see note below) which will be used to disable/
enable the Passlock System. Mount the switch in a location such that it is
accessible to the driver and will not interfere with normal vehicle operation.
NOTE: This is an extremely low current circuit (approx. 7mA), it is therefore very important that a high quality, low energy, fast acting switch be utilized
for this application.
2. Turn the ignition switch to the OFF position.
3. Locate the Main Ignition Switch Harness. GM's Passlock System wires exit the Ignition Switch Tumbler together and then join with the Main Ignition Switch Harness. (See http://www.bulldogsecurity.com/ or http://64.85.6.118/diagrams/diagrams.asp and select your Make, Model and Year for wire colors and clues on the quickest way to access these wires.)
4. Locate the Yellow Passlock Data Wire which is included in a bundle of three tiny (20 GA) wires wrapped in friction tape.
Cut this wire and splice a 0.5mm2 (20 GA) yellow wire to each end of the cut wire.
Keep wire length to a minimum. Route modification wires clear of moving parts.
Connect the yellow wires to the switch such that the contacts are OPEN when the switch is in the ON position.
5. Turn modification switch to the OFF postion (contacts closed).
6. Start vehicle to verify normal operation. If engine “cranks but will not start"
recheck the switch position (contacts should be closed), wire connectors and
modification wiring.

SWITCH OPERATION

To enable remote start:
Start the engine with the ignition key (modification switch must be in the OFF
position). Turn modification switch to the ON position (contacts open). The
SECURITY or THEFT telltale will light up indicating that the Passlock System is inoperative.
Once the SECURITY or THEFT telltale has been on for at least 5 seconds the vehicle can be turned off and then remotely started.

To disable remote start:
The Passlock System can be reactivated by turning the modification switch OFF
(contacts closed). Vehicle can either be running or off when this is done.

Please note that the VCM/PCM will record Diagnostic Trouble Codes (DTCs) related to the security system when the modification switch is in the ON position (circuit open). This is due to the way that the VCM/PCM interprets this condition.

NOTICE
Any condition which removes battery power from the Vehicle Control Module/Powertrain Control Module (VCM/PCM) (e.g. dead battery, disconnected harness connectors, etc.) will prevent the vehicle from being restarted. If the engine exhibits a “cranks but will not start” symptom, place the modification switch in the OFF (contacts closed) position. This will reactivate the Passlock System and allow the vehicle to be started with the ignition key.

[ericn1300]

Originally Posted by MT-2500

I think that old resister rewire is for the vats system.

nope, it works for the Passkey II also. re-read the link. specificaly "VATS and the PassKeyII systems basically operate the same, except they moved the resistor into the lock cylinder"

i cut the wires on the the ignition switch side of the the connector on my 96 and solderd the resistor there and hung it under the dash so i could remove it and toss it into the glove compartment or take it with me, which dosen't require the switch described in the bulletin you posted, thereby totaly disabling the vehicle if i happen to need to leave my vehicle at the airport or in your neighborhood MT

[MT-2500]

Originally Posted by ericn1300

nope, it works for the Passkey II also. re-read the link. specificaly "VATS and the PassKeyII systems basically operate the same, except they moved the resistor into the lock cylinder"

i cut the wires on the the ignition switch side of the the connector on my 96 and solderd the resistor there and hung it under the dash so i could remove it and toss it into the glove compartment or take it with me, which dosen't require the switch described in the bulletin you posted, thereby totaly disabling the vehicle if i happen to need to leave my vehicle at the airport or in your neighborhood MT

What is with the neighborhood wise crack?

[ericn1300]

Originally Posted by MT-2500

What is with the neighborhood wise crack?

just a friendly jab in the ribs, wuz amatta, can't take a joke?

[MT-2500]

Originally Posted by ericn1300

just a friendly jab in the ribs, wuz amatta, can't take a joke?

10-4
No problem.
MT

[lboggie36]

will this work for the pk3

[lboggie36]

how do you disable the pk3 in an 04 venture?

[srs469]

try a new key it worked for mine