C 3500 Truck 2WD V8-6.6L DSL Turbo VIN 1 (2002)
connections are secure and the Techline(TM) operating software is up to date. Attempt to reprogram the control module. If the control module cannot
be programmed, replace the control module. Refer to Engine Control Module (ECM) Replacement.
29. Select Program.
30. After the download is complete, EXIT Service Programming.
31. Turn OFF the ignition for 30 seconds.
32. Turn OFF the Tech 2(TM).
33. If a control module is replaced the following service procedures must be performed:
^
The Engine Oil Life Reset Procedure. Refer to GM Oil Life System - Resetting in Maintenance and Lubrication.
^
Inspection/Maintenance (I/M) Complete System Set Procedure.
^
The Vehicle Theft Deterrent Password Learn Procedure. Refer to Programming Theft Deterrent System Components in Theft Deterrent.
PROGRAMMING VERIFICATION
1. Clear the After, with a scan tool.
2. Attempt to start the engine.
3. Repeat the Service Programming procedure if the engine does not start or operates poorly. Perform the following procedures before programming
the PCM:
^
Ensure the control module and DLC connections are OK.
^
Ensure the Techline(TM) operating software is up to date.
^
Ensure the calibration part number is correct for the vehicle.
4. Attempt to program the control module. If the control module still cannot be programmed properly, replace the control module. Refer to Engine
Control Module (ECM) Replacement You must program the replacement control module.
