Service Programming Methods

The 4 methods of programming a PCM and the proper tools for each method are as follows:

Remote Programming - The Tech 2® or other scan tool, Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software. The Tech 2® or other scan tool is used as an interface between the vehicle and the Techline Terminal or a personal computer. See SERVICE PROGRAMMING SYSTEM REMOTE PROCEDURE .
Pass Thru Programming - The Tech 2® or other scan tool, Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software. The Tech 2® or other scan tool is used as an interface between the vehicle and the Techline Terminal or a personal computer. See SERVICE PROGRAMMING SYSTEM PASS-THRU PROCEDURE .
Off-Board Remote Programming, vehicle NOT available - The Tech 2® or other scan tool, Off-Board Programming Adapter (OBPA), Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software. The Tech 2® or other scan tool is used as an interface between the vehicle and the Techline Terminal or a personal computer. See SERVICE PROGRAMMING SYSTEM OFF BOARD REMOTE PROCEDURE .
Off-Board Pass Thru Programming - The Tech 2® or other scan tool, Off-Board Programming Adapter (OBPA), Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software. The Tech 2® or other scan tool is used as an interface between the vehicle and the Techline terminal or a personal computer. The control module is NOT installed in a vehicle. See SERVICE PROGRAMMING SYSTEM OFF BOARD PASS-THRU PROCEDURE .

All 4 methods may not be available for every vehicle.