Transfer Case Shift Control Module Reprogramming

If the transfer case shift control module needs to be reprogrammed, refer to Service Programming System (SPS) .

Ensure that the following conditions exist in order to prepare for transfer case shift control module programming or reprogramming:

• The battery is fully charged.
• The ignition switch is in the RUN position.
• The Techline equipment cable connection at the data link connector (DLC) is secure.

Program the transfer case shift control module using the latest software matching the vehicle. Refer to up-to-date Techline equipment user instructions.

If the transfer case shift control module fails to program, proceed as follows:

• Ensure that the transfer case shift control module connection is OK.
• Inspect the Techline equipment for the latest software version.
• Attempt to program the transfer case shift control module. If the transfer case shift control module still cannot be programmed properly, replace the transfer case shift control module.