No.18 Excessive Shift Shock Is Given When Upshifting And Downshifting

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EXCESSIVE SHIFT SHOCK IS GIVEN WHEN UPSHIFTING AND DOWNSHIFTING - DESCRIPTION AND POSSIBLE CAUSES

18	Excessive shift shock is given when upshifting and downshifting
DESCRIPTION	Excessive shift shock felt when depressing accelerator pedal to accelerate at upshifting. During cruising, excessive shift shock felt when depressing accelerator pedal at downshifting.
POSSIBLE CAUSE	Shift shock may worsen when fail-safe is operating. The shift shock has worsen if TP sensor, input/turbine speed sensor, or VSS signal malfunctions. Clutch slipped, burned Line pressure low, high Incorrect throttle position signal Malfunction of VSS Malfunction of input/turbine speed sensor Malfunction of TFT sensor Malfunction of shift solenoid A, B, or C Malfunction of TCC solenoid valve Misadjustment of throttle cable Malfunction of body ground and sensor ground Malfunction of control valve body Poor hydraulic operation (Malfunction in range change) NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.

Excessive shift shock is given when upshifting and downshifting

DESCRIPTION

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

POSSIBLE CAUSE

Shift shock may worsen when fail-safe is operating. The shift shock has worsen if TP sensor, input/turbine speed sensor, or VSS signal malfunctions.
- Clutch slipped, burned
  - Line pressure low, high
  - Incorrect throttle position signal
  - Malfunction of VSS
  - Malfunction of input/turbine speed sensor
  - Malfunction of TFT sensor
  - Malfunction of shift solenoid A, B, or C
  - Malfunction of TCC solenoid valve
  - Misadjustment of throttle cable
  - Malfunction of body ground and sensor ground
  - Malfunction of control valve body
- Poor hydraulic operation (Malfunction in range change)
NOTE:
- Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.