FixVault

General Diagnostic Table: Inspection

Symptoms Faulty parts
Shifting vehicle speed is low on "D" range.
  • Front and rear vehicle speed sensors
  • Accelerator pedal position sensor
  • Throttle position sensor
  • ATF temperature sensor
  • CAN communication signal
Shifting vehicle speed is high on "D" range.
  • Front and rear vehicle speed sensors
  • Accelerator pedal position sensor
  • Throttle position sensor
  • CAN communication signal
  • Brake switch signal
  • ATF temperature sensor
Excessive shift shock ("N" → "D" range)
  • Engine idle speed
  • Engine speed signal
  • Accelerator pedal position sensor
  • Throttle position sensor
  • Control cable adjustment
  • ATF temperature sensor
  • Oil pressure switch 1 and front brake solenoid valve
  • CAN communication signal
  • Fluid level and condition
  • TCM power supply
Excessive shift shock on 1st of "D" range → 2nd of "D" range or "1st of manual mode" → "2nd of manual mode".
  • Accelerator pedal position sensor
  • Throttle position sensor
  • Control cable adjustment
  • Oil pressure switch 4 and direct clutch solenoid valve
  • CAN communication signal
  • Engine speed signal
  • Turbine speed sensor 1 and turbine speed sensor 2
  • Front and rear vehicle speed sensors
  • Fluid level and condition
Excessive shift shock on 2nd of "D" range → 3rd of "D" range or "2nd of manual mode" → "3rd of manual mode".
  • Accelerator pedal position sensor
  • Throttle position sensor
  • Control cable adjustment
  • Oil pressure switch 5 and high & low reverse clutch solenoid valve
  • CAN communication signal
  • Engine speed signal
  • Turbine speed sensor 1 and turbine speed sensor 2
  • Front and rear vehicle speed sensors
  • Fluid level and condition
Excessive shift shock on 3rd of "D" range → 4th of "D" range or "3rd of manual mode" → "4th of manual mode".
  • Accelerator pedal position sensor
  • Throttle position sensor
  • Control cable adjustment
  • Oil pressure switch 3 and input clutch solenoid valve
  • CAN communication signal
  • Engine speed signal
  • Turbine speed sensor 1 and turbine speed sensor 2
  • Front and rear vehicle speed sensors
  • Fluid level and condition
Excessive shift shock on 4th of "D" range → 5th of "D" range or "4th of manual mode" → "5th of manual mode".
  • Accelerator pedal position sensor
  • Throttle position sensor
  • Control cable adjustment
  • Oil pressure switch 1 and front brake solenoid valve
  • CAN communication signal
  • Engine speed signal
  • Turbine speed sensor 1 and turbine speed sensor 2
  • Front and rear vehicle speed sensors
  • Fluid level and condition
Excessive shock at kick down.
  • Accelerator pedal position sensor
  • Throttle position sensor
  • Control cable adjustment
  • CAN communication signal
  • Engine speed signal
  • Turbine speed sensor 1 and turbine speed sensor 2
  • Front and rear vehicle speed sensors
  • Fluid level and condition
Excessive shock at shift up.
  • Accelerator pedal position sensor
  • Throttle position sensor
  • Control cable adjustment
  • Engine speed signal
  • CAN communication signal
  • Turbine speed sensor 1 and turbine speed sensor 2
  • Front and rear vehicle speed sensors
  • Fluid level and condition
Excessive shock at lock up.
  • Accelerator pedal position sensor
  • Throttle position sensor
  • Control cable adjustment
  • Engine speed signal
  • CAN communication signal
  • Turbine speed sensor 1 and turbine speed sensor 2
  • Lock up solenoid valve
  • Front and rear vehicle speed sensors
  • Fluid level and condition
Excessive shock at engine brake.
  • Accelerator pedal position sensor
  • Throttle position sensor
  • Control cable adjustment
  • CAN communication signal
  • Fluid level and condition
  • Line pressure
  • Forward brake solenoid valve
Judder is occurred at lock up.
  • Fluid level and condition
  • Engine speed signal
  • Turbine speed sensor 1 and turbine speed sensor 2
  • Front and rear vehicle speed sensors
  • Accelerator pedal position sensor
  • Throttle position sensor
  • Lock up solenoid valve
  • ATF temperature sensor
Noise at "R", "N" and "D" range.
  • Fluid level and condition
  • Engine speed signal
  • ATF temperature sensor
Hold at "D" range or 1st on manual mode.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Direct clutch solenoid valve
  • Line pressure
  • Up switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
Hold at "D" range or 2nd on manual mode.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Forward brake solenoid valve
  • Line pressure
  • Up switch signal
  • Down switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
Hold at "D" range or 3rd on manual mode.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Line pressure
  • Up switch signal
  • Down switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
Hold at "D" range or 4th on manual mode.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 3 and input clutch solenoid valve
  • Oil pressure switch 4 and direct clutch solenoid valve
  • Oil pressure switch 5 and high & low reverse clutch solenoid valve
  • Forward brake solenoid valve
  • Front brake solenoid valve
  • Line pressure
  • Up switch signal
  • Down switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
  • TCM power supply
Hold at "D" range or 5th on manual mode.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 1 and front brake solenoid valve
  • Line pressure
  • Down switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
Gear does not shift 1st of "D" range → 2nd of "D" range or "1st of manual mode" → "2nd of manual mode".
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 4 and direct clutch solenoid valve
  • Line pressure
  • Up switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
Gear does not shift 2nd of "D" range → 3rd of "D" range or "2nd of manual mode" → "3rd of manual mode".
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 5 and high & low reverse clutch solenoid valve
  • Line pressure
  • Up switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
Gear does not shift 3rd of "D" range → 4th of "D" range or "3rd of manual mode" → "4th of manual mode".
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 3 and input clutch solenoid valve
  • Oil pressure switch 1 and front brake solenoid valve
  • Line pressure
  • Up switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
Gear does not shift 4th of "D" range → 5th of "D" range or "4th of manual mode" → "5th of manual mode".
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 1 and front brake solenoid valve
  • Oil pressure switch 4 and direct clutch solenoid valve
  • Turbine speed sensor 1 and turbine speed sensor 2
  • ATF temperature sensor
  • Line pressure
  • Up switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
Gear does not shift down to 4th on "D" range or manual mode.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 1 and front brake solenoid valve
  • Oil pressure switch 4 and direct clutch solenoid valve
  • Line pressure
  • Down switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
Gear does not shift down to 3rd on "D" range or manual mode.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 3 and input clutch solenoid valve
  • Oil pressure switch 1 and front brake solenoid valve
  • Line pressure
  • Down switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
  • TCM power supply
Gear does not shift down to 2nd on "D" range or manual mode.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 5 and high & low reverse clutch solenoid
  • Line pressure
  • Down switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
Gear does not shift down to 1st on "D" range or manual mode.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 4 and direct clutch solenoid valve
  • Line pressure
  • Down switch signal
  • CAN communication signal
  • Accelerator pedal position sensor
No lock-up occurs.
  • Fluid level and condition
  • Line pressure
  • Engine speed signal
  • Turbine speed sensor 1 and turbine speed sensor 2
  • Lock up solenoid valve
  • CAN communication signal
  • ATF temperature sensor
  • Accelerator pedal position sensor
  • Brake switch signal
  • Range signal
No shift shock occurred when shifting 1st of "D" range → 2nd of "D" range or "1st of manual mode" → "2nd of manual mode". Or clutch slipping occurred.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 4 and direct clutch solenoid valve
  • Line pressure
  • CAN communication signal
No shift shock occurred when shifting 2nd of "D" range → 3rd of "D" range or "2nd of manual mode" → "3rd of manual mode". Or clutch slipping occurred.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 5 and high & low reverse clutch solenoid valve
  • Line pressure
  • CAN communication signal
No shift shock occurred when shifting 3rd of "D" range → 4th of "D" range or "3rd of manual mode" → "4th of manual mode". Or clutch slipping occurred.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 3 and input clutch solenoid valve
  • Oil pressure switch 1 and front brake solenoid valve
  • Line pressure
  • CAN communication signal
No shift shock occurred when shifting 4th of "D" range → 5th of "D" range or "4th of manual mode" → "5th of manual mode". Or clutch slipping occurred.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 1 and front brake solenoid valve
  • Oil pressure switch 4 and direct clutch solenoid valve
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
Engine skids when shifting 5th of "D" range → 4th of "D" range or "5th of manual mode" → "4th of manual mode". Or slipping occurred.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 1 and front brake solenoid valve
  • Oil pressure switch 4 and direct clutch solenoid valve
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
Engine skids when shifting 4th of "D" range → 3rd of "D" range or "4th of manual mode" → "3rd of manual mode". Or slipping occurred.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 3 and input clutch solenoid valve
  • Oil pressure switch 1 and front brake solenoid valve
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
Engine skids when shifting 3rd of "D" range → 2nd of "D" range or "3rd of manual mode" → "2nd of manual mode". Or slipping occurred.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 5 and high & low reverse clutch solenoid valve
  • Oil pressure switch 4 and direct clutch solenoid valve
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
Engine skids when shifting 2nd of "D" range → 1st of "D" range or "2nd of manual mode" → "1st of manual mode". Or slipping occurred.
  • Fluid level and condition
  • Front and rear vehicle speed sensors
  • Oil pressure switch 4 and direct clutch solenoid valve
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
Engine brake does not function at 5th → 4th of manual mode.
  • Inhibitor switch
  • Fluid level and condition
  • Control cable adjustment
  • Manual mode switch
  • Oil pressure switch 1
  • Down switch signal
Engine brake does not function at 4th → 3rd of manual mode.
  • Inhibitor switch
  • Fluid level and condition
  • Control cable adjustment
  • Manual mode switch
  • Oil pressure switch 1 and oil pressure switch 3
  • Down switch signal
Engine brake does not function at 3rd → 2nd of manual mode.
  • Inhibitor switch
  • Fluid level and condition
  • Control cable adjustment
  • Manual mode switch
  • Oil pressure switch 5
  • Forward brake solenoid valve
Engine brake does not function at 2nd → 1st of manual mode.
  • Inhibitor switch
  • Fluid level and condition
  • Control cable adjustment
  • Manual mode switch
  • Oil pressure switch 4
  • Forward brake solenoid valve
Excessive acceleration failure on "D" range.
  • Fluid level and condition
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
  • CAN communication signal
  • Inhibitor switch
  • Control cable adjustment
  • Front and rear vehicle speed sensors
Excessive acceleration failure in "R" range.
  • Fluid level and condition
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
  • Oil pressure switch 5 and high & low reverse clutch solenoid valve
  • CAN communication signal
  • Inhibitor switch
  • Control cable adjustment
  • Front and rear vehicle speed sensors
Engine skids when start driving (1st) the vehicle. Or slipping occurred.
  • Fluid level and condition
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
  • CAN communication signal
Engine skids when driving at 2nd. Or slipping occurred.
  • Fluid level and condition
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
  • CAN communication signal
  • Oil pressure switch 4 and direct clutch solenoid valve
Engine skids when driving at 3rd. Or slipping occurred.
  • Fluid level and condition
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
  • CAN communication signal
  • Oil pressure switch 5 and high & low reverse clutch solenoid valve
Engine skids when driving at 4th. Or slipping occurred.
  • Fluid level and condition
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
  • CAN communication signal
  • Oil pressure switch 3 and input clutch solenoid valve
Engine skids when driving at 5th. Or slipping occurred.
  • Fluid level and condition
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
  • CAN communication signal
  • Oil pressure switch 1 and front brake solenoid valve
Slip at lock up.
  • Fluid level and condition
  • Line pressure
  • Engine speed signal
  • Turbine speed sensor 1 and turbine speed sensor 2
  • Lock up solenoid valve
  • CAN communication signal
Maximum vehicle speed is low.
  • Fluid level and condition
  • Line pressure
  • Accelerator pedal position sensor
  • Throttle position sensor
  • CAN communication signal
  • Direct clutch solenoid valve
  • Front and rear vehicle speed sensors
There is completely no creep.
  • Fluid level and condition
  • Engine speed signal
  • CAN communication signal
  • Oil pressure switch 4 and direct clutch solenoid valve
  • Line pressure
Excessive large creep.
  • Engine speed signal
  • CAN communication signal
  • Oil pressure switch 4
Vehicle cannot be parking condition on "P" range. Parking condition is not released though shifting to other ranges.
  • Inhibitor switch
  • Control cable adjustment
Vehicle can drive on "P" range.
  • Inhibitor switch
  • Fluid level and condition
  • Control cable adjustment
  • Line pressure
Vehicle can drive on "N" range.
  • Inhibitor switch
  • Fluid level and condition
  • Control cable adjustment
  • Line pressure
Vehicle cannot drive at any range.
  • Fluid level and condition
  • Line pressure
  • Inhibitor switch
  • Control cable adjustment
  • Loosing or damaging of propeller shaft.
  • Loosing or damaging of drive shaft.
Vehicle cannot drive on "D" range.
  • Fluid level and condition
  • Line pressure
  • Inhibitor switch
  • Control cable adjustment
  • Loosing or damaging of propeller shaft.
  • Loosing or damaging of drive shaft.
Vehicle cannot drive on "R" range.
  • Fluid level and condition
  • Line pressure
  • Inhibitor switch
  • Control cable adjustment
  • Loosing or damaging of propeller shaft.
  • Loosing or damaging of drive shaft.
Engine cannot start on "N" or "P" range
  • Push engine switch and starter
  • Control cable adjustment
  • Inhibitor switch
  • CAN communication line
  • TCM
Engine start other than "N" or "P" range
  • Push engine switch and starter
  • Control cable adjustment
  • Inhibitor switch
  • TCM
Engine stalls.
  • Fluid level and condition
  • Engine speed signal
  • Turbine speed sensor 1 and turbine speed sensor 2
  • Lock up solenoid valve
  • Line pressure
Engine stalls when shifting to "N" → "D" and "R" range.
  • Fluid level and condition
  • Engine speed signal
  • Turbine speed sensor 1 and turbine speed sensor 2
  • Lock up solenoid valve
  • Line pressure