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post #1 of 7 (permalink) Old 01-03-2016, 09:32 AM Thread Starter
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Security Light on Solid Key Relearn Will Not Work

2005 Cobalt 2.2. I am continuing to have issues i cant seem to fix. Current issue is the security light is on sol8dwhen you turn key on and i cannot get the key to relearn, car will not start also. It is a key with the small + symbol. Try to start the car and no start. Leave the key on for 10 minutes and the light will never go out. I have tried disconnecting the battery as well as the BCMl I have verified all fuses are good to include fuse in trunk. Its clear that the security light is keeping the fuel pump from energizing but why? How do i bypassthis or fix it without a dealer? Is it a bad ignition switch? Passlock sensor? Thanks
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post #2 of 7 (permalink) Old 01-03-2016, 10:28 AM
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Have you tried your other key?

---------- Post added at 02:10 PM ---------- Previous post was at 02:01 PM ----------

Programming Theft Deterrent System Components
Programming Replacement Passlock™ Sensor, BCM, or PCM
Important:

• The body control module (BCM) must be programmed with the proper regular production option (RPO) configurations before performing learn procedures. Refer to Body Control Module (BCM) Programming/RPO Configuration in Computer/Integrating Systems.

• If replacing the BCM with a GM Service Parts Operations (SPO) replacement part, the module will learn Passlock™ sensor data code immediately. The existing powertrain control module (PCM) however, must learn the new fuel continue password when the BCM is replaced.

• If replacing a PCM with a GM SPO replacement part, after programming, these modules will learn the incoming fuel continue password immediately upon receipt of a password message. Once a password message is received, and a password is learned, a learn procedure must be performed to change this password again. A PCM which has been previously installed in another vehicle will have learned the other vehicles fuel continue password and will require a learn procedure after programming to learn the current vehicle password.



Conditions
Use this procedure after replacing:

• The Passlock™ sensor

• The BCM

• The PCM

Learn Procedures
There are 2 available methods to perform the programming procedure:

• A 10-minute procedure which requires a Tech 2 and a techline terminal.

• A 30-minute procedure which does not require the use of any tools.

10-Minute Learn Procedure
1. Connect the Tech 2 to the vehicle.
2. Select Request Info. under Service Programming System and follow the instructions.
3. Disconnect the Tech 2 from the vehicle and connect it to a techline terminal.
4. On the techline terminal, select Theft Module Re-Learn under Service Programming.
5. Disconnect the Tech 2 from the techline terminal and connect it to the vehicle.
6. Turn ON the ignition, with the engine OFF.
7. Select VTD Re-Learn under Service Programming.
8. Attempt to start the engine, then release the key to ON, vehicle will not start.
9. Observe the SECURITY telltale. After approximately 10 minutes, the telltale will turn OFF. The vehicle is now ready to relearn the Passlock™ Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK.
10. Turn OFF the ignition, and wait 5 seconds.
11. Start the engine, the vehicle has now learned the password.
12. With the Tech 2 scan tool, clear any DTCs.
30-Minute Learn Procedure
1. Turn ON the ignition, with the engine OFF.
2. Attempt to start the engine, then release the key to ON, vehicle will not start.
3. Observe the SECURITY telltale. After approximately 10 minutes, the telltale will turn OFF.
4. Turn OFF the ignition, and wait 5 seconds.
5. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes. The vehicle is now ready to relearn the Passlock™ Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK.

Important: The vehicle learns the Passlock™ Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.


6. Start the engine. The vehicle has now learned the Passlock™ Sensor Data Code and/or password.
7. With a scan tool, clear any DTCs if needed. History DTCs will self clear after 100 ignition cycles.

---------- Post added at 02:16 PM ---------- Previous post was at 02:10 PM ----------

I've done the 30 minute one before and it took almost 12 minutes for the light to go "OFF"

---------- Post added at 02:28 PM ---------- Previous post was at 02:16 PM ----------

You may also want to pull both blue connectors off of the BCM to clear possible corrosion and flip fuse 25 upper left hand corner for the same reason.


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Last edited by Coby7; 01-03-2016 at 10:26 AM.
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post #3 of 7 (permalink) Old 01-03-2016, 04:41 PM Thread Starter
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I have tried the spare key and have pulled the blue connectors on BCM. I have tried that process you posted Coby multiple times the security light will not go out no matter how long i wait. I have let it wait an hour or more. I am at a loss.
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post #4 of 7 (permalink) Old 01-03-2016, 05:21 PM
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Did you check all the fuses?

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post #5 of 7 (permalink) Old 01-03-2016, 05:27 PM Thread Starter
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I have checked all fuses that might have anything to do with this. But not each and every fuse in the car.
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post #6 of 7 (permalink) Old 01-15-2016, 11:23 PM
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This actually just happened to me, I ended up just having a dead battery lol
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post #7 of 7 (permalink) Old 01-16-2016, 09:00 AM
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Same happened with a buddy, his battery wasn't dead but was weak.

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