A/T - Hard 1-2 Upshift During Warm-Up
TSB: 05-009/062003 - 2005 MAZDA6 2.3L - 1 - 2 SHIFT SHOCK - (TRANS RELEARN PROCEDURE DELETED)
NOTE:
This bulletin replaces 05-009/05. Please update your records accordingly.
BULLETIN NOTE
This bulletin supersedes the previous bulletin 05-009/05, issued on 07/29/05. The REPAIR PROCEDURE and WARRANTY INFORMATION have been revised.
APPLICABLE MODEL(S)/VINS
2003 - 2005 Mazda6 2.3L vehicles with automatic transmission
DESCRIPTION
Some vehicles may exhibit 1st - 2nd shift shock under light to medium acceleration when engine temperature is cold or during warm-up. The TCM logic has been revised to correct this concern.
Customers having this concern should have their vehicle repaired using the following repair procedure.
REPAIR PROCEDURE
1. Reboot the PDS/IDS to clear memory before reprogramming.
2. Using PDS/IDS B37.3 P5 or later software, reprogram the TCM to the latest calibration (refer to "Calibration Information" table) by following the "Module Reprogramming" procedure.
NOTE:
^ Always update the PDS/IDS tool first, then follow on-screen instructions to download the needed calibration file for TCM reprogramming.
^ It is not necessary to remove any fuses or relays during TCM reprogramming when the PDS/IDS screen prompts you to do so. You may accidentally stop power to one of the TCM terminals and cause the TCM to be blanked, or you may receive error messages during the PDS/IDS reprogramming procedure.
^ PDS/IDS shows the calibration part numbers after programming the TCM.
^ Please be aware that TCM calibration part numbers and file names listed in any Service Bulletin may change due to future releases of PDS/IDS software, and additional revisions made to those calibrations for service related concerns.
^ When reprogramming a TCM, PDS/IDS will always display the "latest" calibration P/N available for that vehicle. If any calibration has been revised/updated to contain new information for a new service concern/issue, it will also contain all previously released calibrations.
^ When performing this procedure, we recommend that a battery charger be installed on the vehicle battery and turned ON to a maximum charge of no more than 20 AMPS to keep the vehicle battery up to capacity. If you exceed 20 AMPS, it could damage the VCM.
^ After performing the TCM reprogramming procedure, verify the repair by starting the engine and making sure there are no MIL illumination or abnormal warning lights present.
NOTE:
If any DTCs should remain after performing DTC erase, diagnose the DTCs according to the appropriate Troubleshooting section of the Workshop Manual.
CUSTOMER NOTE
NOTE:
Please explain to the customer that the shift feeling of the transmission will change after the repair, but as the vehicle is driven, the TCM's Adaptive Strategy will begin to relearn the customer's driving patterns and habits, so the shift feel will normalize.
CALIBRATION INFORMATION
NOTE:
The TCM Calibration Part Numbers listed above are provided for TCM reprogramming purposes only.
These are not necessarily the same Mazda part numbers used to order an actual TCM through the Mazda Parts System. It is not necessary to order a TCM as part of this repair procedure.
WARRANTY INFORMATION
NOTE:
^ This warranty information applies only to verified customer complaints on vehicles eligible for warranty repair. Refer to the Warranty Wizard for warranty term information.
^ Additional diagnostic time cannot be claimed for this repair.
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