No. 9 Abnormal Shifting [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

9	Abnormal shifting
DESCRIPTION	Shift incorrectly (incorrect shift pattern).
POSSIBLE CAUSE	There is a malfunction in the signal circuit which controls shifting (Accelerator opening signal, input/turbine speed sensor, VSS), the control valve is stuck, or the clutch circuit is stuck. Clutch slippage, burnt (C1 clutch, C2 clutch, C3 clutch, B1 brake) Line pressure low Incorrect accelerator opening signal VSS malfunction Input/turbine speed sensor malfunction Sensor ground malfunction Shift solenoid C malfunction Shift solenoid D malfunction Shift solenoid E malfunction Line pressure control solenoid malfunction TCC control solenoid malfunction Shift solenoid F malfunction Body ground malfunction Control valve body malfunction TR switch adjustment incorrect 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] .)

Abnormal shifting

DESCRIPTION

Shift incorrectly (incorrect shift pattern).

POSSIBLE CAUSE

There is a malfunction in the signal circuit which controls shifting (Accelerator opening signal, input/turbine speed sensor, VSS), the control valve is stuck, or the clutch circuit is stuck.
- Clutch slippage, burnt (C1 clutch, C2 clutch, C3 clutch, B1 brake)
  - Line pressure low
  - Incorrect accelerator opening signal
  - VSS malfunction
  - Input/turbine speed sensor malfunction
  - Sensor ground malfunction
  - Shift solenoid C malfunction
  - Shift solenoid D malfunction
  - Shift solenoid E malfunction
  - Line pressure control solenoid malfunction
  - TCC control solenoid malfunction
  - Shift solenoid F malfunction
  - Body ground malfunction
  - Control valve body malfunction
  - TR switch adjustment incorrect
    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] .)