Permanently Disable and Remove GM Security Systems

1. Set SW2 (10 switches) as indicated in the second row of the table below.
2. Try to start the engine. If engine starts then replace the cover on the PRO Module, the installation is completed. Otherwise if the engine still doesn’t start, turn off the key and remove it from the tumbler, wait 4 minutes and then continue with step #3 here below.
3. Repeat step #2 above, but with SW2 as in row 3 of the table, then if still doesn’t start repeat again with SW2 as in row 4 of the table and so on until the right code is found and the engine will start.