Service Programming Methods

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

• Remote Programming. See SERVICE PROGRAMMING SYSTEM REMOTE PROCEDURE .
• Pass-Thru Programming. See SERVICE PROGRAMMING SYSTEM PASS-THRU PROCEDURE .
• Off-Board Remote Programming, vehicle NOT available. See SERVICE PROGRAMMING SYSTEM OFF BOARD REMOTE PROCEDURE .
• Off-Board Pass-Thru Programming. See SERVICE PROGRAMMING SYSTEM OFF BOARD PASS-THRU PROCEDURE .

All 4 methods may not be available for every vehicle.