A/T Controls - Busy Shifting at Highway Speeds
TSB: 05-007/072007 CX-7 - BUSY SHIFT FROM 6TH TO 5TH GEAR DURING HIGHWAY DRIVING
APPLICABLE MODEL(S)/VINS
2007 CX-7 vehicles with VINS lower than JM3ER******172631
(produced before June 7, 2007)
DESCRIPTION
Some customers may complain of a busy shift from 6th to 5th gear at highway speed. This is due to the characteristics of the Transmission Control Module (TCM) calibration. The TCM setting emphasizes acceleration, a slight depression of the accelerator pedal creates a shift from 6th gear down to 5th gear.
The TCM logic has been modified, specifically, the hill climb judgement parameters have been changed to reduce sensitivity.
Customers having this concern should have their vehicle repaired using the following repair procedure.
REPAIR PROCEDURE
1. Reboot the IDS to clear memory before reprogramming.
2. Using IDS B50.2 or later software, reprogram the TCM to the latest calibration (refer to "Calibration Information" table) by following the "Module Reprogramming" procedure.
3. 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.
4. Fill out an "Authorized Modifications" label (P/N 9999-95-AMDC-97) with the new TCM calibration information, your dealer code, and todays date.
5. Place the "Authorized Modifications" label on the "A" pillar below the tear tag in the driver door jamb. The "Authorized Modification" label will inform technicians of the TCM calibration change if future repairs are necessary.
CALIBRATION INFORMATION
WARRANTY INFORMATION
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