Sierra 3500 4WD V8-6.6L DSL Turbo (2007)
3.
Reprogram the engine control module (ECM), transmission control module (TCM), and the body control module (BCM). Use the Tech 2
Pass-Thru Method for reprogramming the BCM. Follow the instructions below.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any of the modules due to battery discharge.
Battery voltage must be between 12.5 and 13 volts during reprogramming. If the battery is not fully charged, use jumper cables from an
additional battery. Be sure to turn off or disable any system that may put a load on the battery, such as automatic headlamps, daytime running
lights, interior lights, heating, ventilation, and air conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or
control module damage may occur if the battery voltage guidelines are not observed. Only use approved Midtronics charger or jumper packs,
etc. to maintain proper battery voltage during programming.
4.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the ignition, with the engine OFF. DO NOT change the
position of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^
The RS-232 communication cable port
^
The connection at the data link connector (DLC)
^
The voltage supply circuits
^
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the programming procedure, programming failure or
control module damage may occur.
^
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure that all control module and DLC
connections are secure and the Tech 2 software is up to date.
^
Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a charge during programming. Use an additional
jump battery if necessary. Only use approved Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during
programming.
^
Refer to SI and Service Programming System (SPS) documentation for programming instructions, if required.
5.
Affix the Service Parts Information (SPID) and Price Label in the appropriate locations on the vehicle. Revised SPID and Price labels will be
mailed to you sometime the week of July 23, 2007.
Claim Information
For vehicles repaired under this service update, use the table.
Disclaimer
