Some GM cars and trucks can be programed with no tools, but because of the design of the system in your truck, it will have to have a class 2 scan tool used to program the pass lock theft device. Note the blue links will not open for you.
Important: If a new vehicle/powertrain control module (VCM/PCM) is being installed for the first the manufacturing enable bit will be set and the auto learn procedure may not be necessary.
The following procedure allows for anyone to reprogram the EVO/PasslockTM module learned data code with any tools, other than the scan tool, when any of the following parts are replaced:
The EVO/PasslockTM module will set the DTC B3031 module in the learn mode when entering the reprogramming procedure.
Important: Erase the passlockTM related diagnostic trouble codes (DTCs) that are stored in the VCM/PCM. If there are any powertrain related DTCs, record these DTCs then:
The following is the Auto Learn Procedure: