No. 17 Excessive Shift Shock When Upshifting And Downshifting: Notes

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

EXCESSIVE SHIFT SHOCK WHEN UPSHIFTING AND DOWNSHIFTING - DESCRIPTION & POSSIBLE CAUSE

17	Excessive shift shock when upshifting and downshifting
DESCRIPTION	Excessive shift shock is felt when depressing accelerator pedal at upshifting. During cruising, excessive shift shock is felt when depressing accelerator pedal at downshifting.
POSSIBLE CAUSE	Shift shock may worsen when the fail-safe is operating. The shift shock has worsened if the throttle position sensor, input/turbine speed sensor, or output speed sensor signal malfunctions. Clutch slippage, burning Line pressure is low or high Throttle position sensor malfunction Output speed sensor malfunction Input/turbine speed sensor malfunction Shift solenoid A malfunction Shift solenoid B malfunction TCC solenoid valve malfunction Throttle cable malfunction Body ground and sensor ground malfunction Control valve body malfunction Poor hydraulic operation (Malfunction in range change) NOTE: Before following the troubleshooting steps, make sure that the on-board diagnosis and basic inspection have been conducted.

Excessive shift shock when upshifting and downshifting

DESCRIPTION

Excessive shift shock is felt when depressing accelerator pedal at upshifting.
During cruising, excessive shift shock is felt when depressing accelerator pedal at downshifting.

POSSIBLE CAUSE

Shift shock may worsen when the fail-safe is operating. The shift shock has worsened if the throttle position sensor, input/turbine speed sensor, or output speed sensor signal malfunctions.
1. Clutch slippage, burning
  - Line pressure is low or high
  - Throttle position sensor malfunction
  - Output speed sensor malfunction
  - Input/turbine speed sensor malfunction
  - Shift solenoid A malfunction
  - Shift solenoid B malfunction
  - TCC solenoid valve malfunction
  - Throttle cable malfunction
  - Body ground and sensor ground malfunction
  - Control valve body malfunction
2. Poor hydraulic operation (Malfunction in range change)
  NOTE:
  - Before following the troubleshooting steps, make sure that the on-board diagnosis and basic inspection have been conducted.