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NO.18 EXCESSIVE SHIFT SHOCK IS GIVEN WHEN UPSHIFTING AND DOWNSHIFTING [JA5AX-EL]

id050305802300

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.