Melissa Florence

How to Permanently Disable GM PassLock System

car, vehicle


The pursuing instructions will allow for you to disable the PassLock security in fairly a several GM Autos.

•This will allow for you to install a remote starter and not have to acquire a bypass.

•Avoid Pricey repairs for an currently broken PassLock System.

•Disable Move Lock process to avert from getting stranded in the long run.


A electronic ohm meter (optional)

T25 Screw Driver (optional)

Alligator Clips (optional)

Screw driver or other applications for removing interior panels

one/four” Generate 7mm or nine/32 socket and socket driver


This tutorial varies relying if the ignition is situated:

If your ignition is situated in the sprint then you will be removing the panels on the passenger underside (toe board) of the sprint. The BCM (Human body Manage Module) is there and so are the wires we will need to get also.

If you ignition is situated in the steering column then you will be removing the driver side kick panels of the sprint AND the clam shell close to the ignition held in with torx screws.

For Cavalier and Sunfire House owners you ONLY have to clear away the clam shell close to the ignition that’s held in with three bolts.

Based on the vehicle we will be looking for three wires bundled their colours are

(Group1)Red/White Yellow Black 
(Group two)Red/White Yellow Orange/Black

one.Eliminate the ideal sprint panels to get to the wire harness.

two.Find the Move Lock two Wires, they will be coming out of the ignition OR on the BCM they will be situated in the grey connector, Pin A6 is your yellow wire, and pin B6 will be a black wire(they must be correct beside each individual other).

three.Strip some of the wire insulation off the black wire, leaving it bare so you can check and solder to it later. DO NOT Lower THIS WIRE!

four.Now reduce the yellow wire, make sure to depart adequate on the two ends to give by yourself one thing to work with. Strip the two of the reduce ends for tests.

5.Choose your electronic ohm meter and set your destructive probe on the black wire that you stripped back previously. Place the beneficial probe on the yellow stop of the wire that sales opportunities Again to the ignition. Use alligator clips listed here to enable the probes grab the wires.

six.With the probes hooked up switch the ignition to the operate situation. Never try out to actually start out the vehicle, it would not operate anyways :). Examine the ohm reading through of the meter this is the resistance that we will need to build to idiot the PassLock security. Transform off the car.

7.When choosing a resistance never fret about getting useless on at times getting close is good adequate. If you are unable to obtain one thing everywhere in close proximity to to what you go through on the ohm meter you have the choice to use a resistor among .5K ohms up to thirteen.6K ohms.

8.With the probes disconnected, consider the resistor you chosen and attach one particular of the ends to the black wire and then attach the other stop to yellow wire that sales opportunities absent from the ignition (goes to the laptop).  Use black electrical tape to the yellow wire stop that goes to the ignition, we never will need it any more.

nine.With the resistor related try out and start out your car, if you matched the resistance the car will start out on the first or next try out.

10.If it starts then Achievements! Solder all your new connections. Tape up your bare wires and re-assemble your sprint you’re done 🙂

eleven.If it won’t start out never freak out. You will have to do the manufacturing unit relearn technique(really quick)

10 Moment Learn Treatment

•Starting from the off situation.

•Attempt to start out the motor, then launch the key to Run situation (vehicle will not start out).

•Observe the security mild situated in the instrument cluster, following close to 10 minutes the security mild will switch OFF. Transform OFF the ignition, and wait around 5 seconds.

•The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the upcoming ignition switch changeover from OFF to CRANK.


The vehicle learns the Passlock Sensor Data Code and/or resistance on the upcoming ignition switch changeover from OFF to CRANK. You need to switch the ignition OFF before making an attempt to start out the vehicle.

12.    Your all done, Solder all your new connections. Tape up your bare wires and re-assemble your sprint you’re done 🙂

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