No.7 No Shifting

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.

NO SHIFTING - DESCRIPTION AND POSSIBLE CAUSES

7	No shifting
DESCRIPTION	Single shift range only. Sometimes it shifts correctly.
POSSIBLE CAUSE	When gear position is fixed in 4GR due to the fail-safe operation, malfunction is in the ATX. Perform malfunction diagnosis according to NO.6 LOW MAXIMUM SPEED AND POOR ACCELERATION . Clutch 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 control valve body 4GR is fixed (Operation in fail-safe function) Short or open circuit in wiring Poor connection of connector Poor ground of shift solenoid Electrical parts of output and input system malfunctioning NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.

No shifting

DESCRIPTION

Single shift range only.
Sometimes it shifts correctly.

POSSIBLE CAUSE

When gear position is fixed in 4GR due to the fail-safe operation, malfunction is in the ATX.
Perform malfunction diagnosis according to NO.6 LOW MAXIMUM SPEED AND POOR ACCELERATION .
- Clutch 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 control valve body
- 4GR is fixed (Operation in fail-safe function)
  - Short or open circuit in wiring
  - Poor connection of connector
  - Poor ground of shift solenoid
  - Electrical parts of output and input system malfunctioning
NOTE:
- Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.