No. 17 Excessive Shift Shock From N To D Or N To R Position/Range [Aw6A-El]: Notes

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DESCRIPTION AND POSSIBLE CAUSE

17	Excessive shift shock from N to D or N to R position/range
DESCRIPTION	Strong shock felt when shifting from N to D or N to R position/range at idle.
POSSIBLE CAUSE	Shift shock may worsen when the fail-safe is operating. If no DTC is output, the shift shock may worsen due to poor operation of the control valve body or sticking of the clutch. Clutch burnt (N→D: C1 clutch, N→R: C3 clutch or B2 brake) Line pressure low Incorrect accelerator opening signal TFT sensor malfunction Sensor ground malfunction Shift solenoid C malfunction Shift solenoid E malfunction Line pressure control solenoid malfunction Control valve body malfunction Poor hydraulic operation (Malfunction in range change) Idle speed high Poor tightening torque of engine mount, exhaust mount Line pressure high Garage shift control is not learned Initial learning did not perform NOTE: Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [AW6A-EL] .)

Excessive shift shock from N to D or N to R position/range

DESCRIPTION

Strong shock felt when shifting from N to D or N to R position/range at idle.

POSSIBLE CAUSE

Shift shock may worsen when the fail-safe is operating. If no DTC is output, the shift shock may worsen due to poor operation of the control valve body or sticking of the clutch.
- Clutch burnt (N→D: C1 clutch, N→R: C3 clutch or B2 brake)
  - Line pressure low
  - Incorrect accelerator opening signal
  - TFT sensor malfunction
  - Sensor ground malfunction
  - Shift solenoid C malfunction
  - Shift solenoid E malfunction
  - Line pressure control solenoid malfunction
  - Control valve body malfunction
- Poor hydraulic operation (Malfunction in range change)
- Idle speed high
- Poor tightening torque of engine mount, exhaust mount
- Line pressure high
- Garage shift control is not learned
  - Initial learning did not perform
    NOTE:
    Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [AW6A-EL] .)