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Transmission Control Module (TCM) Will Not Communicate With Non-Tech2 Service or Test Equipment (Reprogram the TCM)

Subject:Transmission Control Module (TCM) Will Not Communicate With Non-Tech 2® Service or Test Equipment (Reprogram the TCM)

Models:2003 Cadillac CTS Built Prior to VIN Breakpoint 30116928



This bulletin is being revised to correct the Labor Time Operation. Please discard Corporate Bulletin Number 02-07-30-033 (Section 07-Transmission/Transaxle).


Condition

Some customers may comment that their vehicle is unable to be properly serviced or tested due to the inability of non-Tech 2® service or test equipment to communicate with the vehicle's TCM.

Cause

Some non-Tech 2® service and test equipment may be unable to establish communication with the vehicle's on board TCM.

Correction

Re-program the vehicle TCM using the SPS programing procedure, TIS 2000, software version 6.5 or newer.

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

K5364

Module Reprogram-TCM

0.4 hr