Owners of 2010-1022 Mazda CX-9 vehicles may complain about the DSC indicator light turning on and off momentarily after driving on a flat road for a few minutes. DTC C1963 (SAS control module (yaw rate sensor part) initial point correction error) may be stored. If the DTC is erased, the same DTC will store again.
This TSB involves CX-9 vehicles manufactured before Feb. 10, 2011, with VIN lower than JM3TB******320219.
Is DTC C1963 the only stored DTC in the DSC/RSC HU/CM?
- If yes, proceed to PUMA SPECIAL SERVICE TOOL (SST) LOANER REQUEST.
- If no, this TSB does not apply. Refer to the workshop manual section 04-02b ON-BOARD DIAGNOSTICS (DSC/RSC).
The PUMA SST is required for DSC/RSC HU/CM reflash. Request a “Loaner” tool on Mstore to perform this procedure. Order P/N Puma2VCI-L.
Unpack the SST and check for visual damage to the PUMA tool and OBD II cable. If damage is found, contact MNAO Technical product Support at 949-442-6537. Verify that there is a solid connection between the tool and cable. Proceed to REFLASH PROCEDURE.
- If so, proceed to Step 12. If not, proceed to REFLASH FAULT PROCEDURE.
NOTE: There could be several reasons why the “Warning/Failure” light is illuminated, from failure to read the VIN to a power interruption. Follow these steps if the reflash process stalls, becomes interrupted or if the “Warning/Failure” light is illuminated…
- Check the vehicle for related DTC codes other than C1963. Repair these fault codes first. Disconnect the PUMA cable from the PUMA tool. Repeat the Reflash Preparation process. Repeat the REFLASH PROCEDURE beginning at Step 1.
- Repeat Step 1 two times if necessary (three times total).
- If the “Warning/Failure” light illuminates after repeating Step 1 two or three times, contact the Mazda Technical Assistance Hotline at 1-888-832-8477. If the light does not illuminate, the repair is complete.
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