No.9 Abnormal Shifting: Notes

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

ABNORMAL SHIFTING - DESCRIPTION AND POSSIBLE CAUSES

9	Abnormal shifting
DESCRIPTION	Shift incorrectly (incorrect shift pattern).
POSSIBLE CAUSE	There is a malfunction in signal circuit which controls shifting (Throttle position signal, input/turbine speed sensor, VSS), control valve is stuck, or clutch circuit is stuck. Clutch slipped, burned Line pressure low Incorrect throttle position signal Malfunction of VSS Malfunction of input/turbine speed sensor Malfunction of sensor ground Malfunction of shift solenoid A, B, or C Malfunction of TCC solenoid valve Malfunction of body ground Misadjustment of accelerator cable Malfunction of control valve body Malfunction or misadjustment of TR switch NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.

Abnormal shifting

DESCRIPTION

Shift incorrectly (incorrect shift pattern).

POSSIBLE CAUSE

There is a malfunction in signal circuit which controls shifting (Throttle position signal, input/turbine speed sensor, VSS), control valve is stuck, or clutch circuit is stuck.
- Clutch slipped, burned
  - Line pressure low
  - Incorrect throttle position signal
  - Malfunction of VSS
  - Malfunction of input/turbine speed sensor
  - Malfunction of sensor ground
  - Malfunction of shift solenoid A, B, or C
  - Malfunction of TCC solenoid valve
  - Malfunction of body ground
  - Misadjustment of accelerator cable
  - Malfunction of control valve body
  - Malfunction or misadjustment of TR switch
NOTE:
- Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.