How to change PIN CODE in GM's Vehicle Modules using GM DPS

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GM Car Hacking Expert

August 1, 20223 yr

GM Car Hacking Expert

For some time now, I've been trying to figure out the PIN CODE change option using DPS with no success. I had some free time today, so I had another go at the PIN CODE puzzle. I solved the puzzle after drinking two cans of RedBull and thinking a bit. Changing the PIN CODE in GM vehicle modules is now possible using the DPS tool. This option is excellent for folks who want to recycle used secondhand GM vehicle electronic modules.

Without a PIN code change in a used IPC, BCM, EBCM, and SDM, you won’t be able to program those modules via GM online SPS service utilising the vehicle’s original PIN.

Important

To change the PIN code in a used GM module, you must know the PIN code already programmed/stored in that module. Without knowing that PIN code, you cannot change the PIN code in the modules using DPS.

Methods for knowing the PIN CODE stored in a used module.

Connect the used module to DPS, then use the "get Controller Info" option to know the VIN stored in the module.

You can then use this VIN to PIN service to know the PIN CODE stored in the used module.

VIN to PIN Service

Watch this video to see the process.

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