A/T Controls - Forenza - Harsh 2-1 Downshift

Section Title: Transmission
TSB No. TS 01 08055

Division: Automotive
Category: Technical

SUBJECT:
AUTOMATIC TRANSMISSION HARSH 2 TO 1 DOWNSHIFT

MODEL(S):
FORENZA (RQ420)

YEAR:
2004

CONDITION:
Drivability concern harsh shift from 2nd gear to 1st gear when slowing to a stop.

CAUSE:
Transmission Control Module (TCM) Software Logic

CORRECTION:
Reprogram the Automatic Transmission Control Module (TCM). Follow the reprogramming procedure described below.





REQUIRED TOOLS AND SOFTWARE





WARRANTY CLAIM INF6RMATION

Reprogramming Procedure:

1. Log onto the SCAT system and access the Suzuki Pitstop.

2. Download and review the Suzuki Pass-Thru Reprogramming Tool Operator's Manual. This must be read and understood COMPLETELY before attempting to reprogram the TCM.

3. Following the procedure outlined in the Suzuki Pass-Thru Reprogramming Tool Operator's Manual, download and install the Pass-Thru Reprogramming Software "3 SOFTWARE.EXE" and the Suzuki Pass-Thru Reprogramming Data Base "4_DATABASE1.EXE" onto your PC. Follow the procedure in Section 3.2 of the Operator's Manual to update the Database files.

4. Following the procedures outlined in the Suzuki Pass-Thru Reprogramming Tool Operator's Manual, hook up the SDS Interface Tool P/N 09910-06520 to the vehicle and run the TCM reprogramming software.

5. When the TCM reprogramming is complete use the Tech 2 to perform the "AT Learned Initialize" under "Transmission-> Misc Test".





6. Fill out the Reprogram Label P/N 99963-01501-224 (the part number and version will be displayed at the "The reprogramming is successful" screen). Then affix the label to the back of the glove box door as pictured.





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