Automatic Transmission Harsh 2 To 1 Downshift (TS_01_08055)
Publication date: 2005-08-05Reference number: TS_01_08055
AUTOMATIC TRANSMISSION HARSH 2 TO 1 DOWNSHIFT
TECHNICAL SERVICE BULLETIN
Reference Number(s): TS 01 08055, Date of Issue:
August 05, 2005
| SUZUKI: | 2004 FORENZA (RQ420) |
| SECTION: | Transmission |
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
REQUIRED TOOLS AND SOFTWARE DESCRIPTION
| Part Numbers | Description | QTY | Notes |
|---|---|---|---|
| 09910-06520 | SDS Tool Kit | 1 | Kit Includes USB Cable, Diagnostic Interface Box and DLC Cable |
| Suzuki Pitstop | Pass-Thru Reprograming Software 3_SOFTWARE.EXE | 1 | Most current Pass-Thru Software Requires a Key Code to operate |
| Suzuki Pitstop | Database 4_DATABASE1.EXE | 1 | Most Current Software Database |
| Suzuki Pitstop | Suzuki Pass-Thru Reprogramming Tool Operator's Manual | 1 | Must be read and understood completely before attempting to reprogram a vehicle |
| 99963-01501-224 | Reprogram Label | 1 | Labels can be ordered thru Suzuki Parts Department at no charge in packages of 200 each. |
WARRANTY CLAIM INFORMATION
WARRANTY CLAIM INFORMATION
| Labor Operation | Description | Failed Part Number | Complaint Code | Defect Code | Labor Time |
|---|---|---|---|---|---|
| FB33P0 | Controller, AT TCM | 38880-85Z00 | 26 | 48 | 0.3 Hrs. |
Reprogramming Procedure
- Log onto the SCAT system and access the Suzuki Pitstop.
- 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.
- 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.
- 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.
- When the TCM reprogramming is complete use the Tech 2 to perform the "AT Learned Initialize" under "Transmission-> Misc Test".
- 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 below.