ASMT - TC-SST Diagnostics and Repair Procedures: Overview
No: TSB-13-22-001DATE: February, 2013
MODEL: See below
SUBJECT:
TC-SST TRANSMISSION AND MECHATRONIC
ASSEMBLY DIAGNOSIS & REPAIR PROCEDURES
PURPOSE
Procedures are now available for W6DGA TC-SST Mechatronic Assembly (valve body and transmission control module) replacement. This TSB provides the necessary steps to complete diagnosis, replace the Mechatronic Assembly, and program the new electronic control unit.
Until now, authorized repairs for the TC-SST were limited to replacement of axle seals, transmission oil pan and gasket, and the external oil filter. With the addition of Mechatronic Assembly replacement, dealers no longer have to replace the transmission assembly to address the most common TC-SST symptoms.
This TSB covers the following subjects:
1. An overview of the TC-SST operation
2. Diagrams of the transmission showing selected replacement parts
3. A Customer Interview Worksheet to be used by dealer service personnel to identify specific transmission concerns.
!! IMPORTANT !! You are required to submit a completed customer interview sheet to Techline for parts release.
4. Transmission troubleshooting instructions
5. Mechatronic assembly replacement instructions including TCM programming
6. A Quality Control Checklist to verify proper repair.
7. Part number information
Diagnosis and repairs for DTCs and other symptoms not covered by this TSB may require transmission replacement. For TC-SST diagnosis and repairs not covered by this TSB, contact Techline for assistance.
NOTE:
Unlike most Mitsubishi electronic control units, a new Mechatronic assembly's TCM is not programmed with operating software. When a new Mechatronic assembly is installed, the technician must program it following the steps provided in this TSB.
Repairs to the TC-SST are limited to the following:
^ Mechatronic assembly replacement and programming
^ Teach-in procedure for all model years (2008 Lancer Evolution is unique)
^ External oil filter/housing replacement
^ Axle seal replacement
^ Oil pan and pan seal replacement
AFFECTED VEHICLES
2008 - 2013 Lancer Evolution with TC-SST
2009 - 2013 Lancer Ralliart Edition with TC-SST
2009 - 2011 Lancer Sportback Ralliart Edition with TC-SST
TC-SST OPERATION OVERVIEW
DIAGNOSIS AND REPAIR OVERVIEW
PARTS INFORMATION
Use Genuine Mitsubishi parts as listed in ASA CAPS.
WARRANTY INFORMATION
This TSB provides technical information only.