No. 9 Abnormal Shift: Notes
ABNORMAL SHIFT - DESCRIPTION & POSSIBLE CAUSE
| 9 |
Abnormal shift |
| DESCRIPTION |
- Shifts incorrectly, (incorrect shift pattern)
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| POSSIBLE CAUSE |
- There is a malfunction in the signal circuit which controls shifting (throttle position sensor, input/turbine speed sensor, and output speed sensor), the control valve is stuck, or the clutch circuit is stuck.
- Clutch slippage, burn
- Line pressure is low
- Misadjustment of throttle position sensor malfunction
- Output speed sensor malfunction
- Input/turbine speed sensor malfunction
- Sensor ground malfunction
- Shift solenoid A malfunction
- Shift solenoid B malfunction
- Torque converter clutch solenoid valve malfunction
- Body ground malfunction
- Throttle cable malfunction
- Control valve body malfunction
NOTE:
- Before following the troubleshooting steps, make sure that the on-board diagnosis and basic inspection have been conducted.
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