2012 Mazda MAZDA3 TSB 10097401

Mazda TSB #01-020-13-2816

2012 Mazda MAZDA3

TSB Document:

Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)

Summary
SOME VEHICLES MAY EXHIBIT THE ENGINE RPM TEMPORARILY GOING UP ABOVE 3,000 WHEN THE ACCELERATOR PEDAL IS SLIGHTLY PUSHED WHILE SHIFTING AROUND 30 KM/H (19 MPH). THE ENGINE RPM RETURNS TO IDLE IF THE DRIVER TAKES THEIR FOOT OFF THE ACCELERATOR PEDAL. THIS CONCERN IS CAUSED BY IMPROPER CALIBRATION OF THE PCM FOR TORQUE TRIM CONTROL. TORQUE TRIM CONTROL IS USED ON THIS M/T TO ADJUST THE ENGINE RPM TO A SUITABLE SPEED FOR THE GEAR AFTER SHIFTING. THE FUNCTION ONLY WORKS WHEN THE DRIVER STEPS ON THE ACCELERATOR PEDAL WHILE SHIFTING TO HELP ACHIEVE SMOOTH SHIFTS. TO CORRECT THE PROBLEM, THE PCM SOFTWARE HAS BEEN MODIFIED.

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Date Published
JUL 17, 2013
NHTSA TSB #
10097401
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