TCM Reprogramming

If the TCM is reprogrammed, TCM reprogramming must be performed. Refer to Service Programming System (SPS) .

Ensure the following conditions exist in order to prepare for TCM 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 TCM using the latest software matching the vehicle. Refer to up-to-date Techline equipment user instructions.

If the TCM fails to program, proceed as follows:

• Ensure the TCM connection is good.
• Inspect the Techline equipment for the latest software version.
• Attempt to program the TCM. If the TCM still cannot be programmed properly, replace the TCM.