AUTOMATIC TRANSMISSION SYSTEM > PROBLEM SYMPTOMS TABLE

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HINT:
  1. Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  2. The Matrix Chart is divided into 2 chapters. When troubleshooting, check Chapter 1 first. If instructions are given in Chapter 1 to proceed to 2, proceed as instructed.
  3. If the instruction "Proceed to next circuit inspection shown in problem symptoms table" is given in the flowchart for a circuit, proceed to the next suspected area in the table.
  4. If the problem still occurs even though there are no malfunctions in any of the circuits, check the ECM and replace it if necessary.
  5. *: When the circuit is defective, a DTC may be output.

1. CHAPTER 1: ELECTRONIC CIRCUIT MATRIX CHARTĀ 
Symptom
Suspected Area
See page
No up-shift (1st -> 2nd)
Shift solenoid valve S1 circuit*
Click here
ECM
Click here
No up-shift (2nd -> 3rd)
Shift solenoid valve S2 circuit*
Click here
ECM
Click here
No up-shift (3rd -> 4th)
Shift solenoid valve S3 circuit*
Click here
Engine coolant temperature sensor circuit (for 3UR-FE)*
Click here
Engine coolant temperature sensor circuit (for 3UR-FBE)*
Click here
ECM
Click here
No up-shift (4th -> 5th)
Shift solenoid valve S4 circuit*
Click here
Shift solenoid valve SR circuit*
Click here
Shift solenoid valve SL1 circuit*
Click here
Shift solenoid valve SL2 circuit*
Click here
Engine coolant temperature sensor circuit (for 3UR-FE)*
Click here
Engine coolant temperature sensor circuit (for 3UR-FBE)*
Click here
ECM
Click here
No up-shift (5th -> 6th)
Park/neutral position switch circuit*
Click here
Shift solenoid valve S2 circuit*
Click here
ECM
Click here
No down-shift (6th -> 5th)
Park/neutral position switch circuit*
Click here
Shift solenoid valve S2 circuit*
Click here
ECM
Click here
No down-shift (5th -> 4th)
Shift solenoid valve S4 circuit*
Click here
Shift solenoid valve SR circuit*
Click here
Shift solenoid valve SL1 circuit*
Click here
Shift solenoid valve SL2 circuit*
Click here
ECM
Click here
No down-shift (4th -> 3rd)
Shift solenoid valve S3 circuit*
Click here
ECM
Click here
No down-shift (3rd -> 2nd)
Shift solenoid valve S2 circuit*
Click here
ECM
Click here
No down-shift (2nd -> 1st)
Shift solenoid valve S1 circuit*
Click here
ECM
Click here
No lock-up or no lock-up off
Shift solenoid valve SLU circuit*
Click here
Stop light switch circuit*
Click here
ECM
Click here
No lock-up
No. 1 ATF temperature sensor circuit*
Click here
Shift solenoid valve SLU circuit*
Click here
Engine coolant temperature sensor circuit (for 3UR-FE)*
Click here
Engine coolant temperature sensor circuit (for 3UR-FBE)*
Click here
Stop light switch circuit*
Click here
Speed sensor NT circuit*
Click here
ECM
Click here
No lock-up off
Shift solenoid valve SLU circuit*
Click here
ECM
Click here
Shift point too high or too low
Shift solenoid valve SLT circuit*
Click here
Speed sensor NT circuit*
Click here
Speed sensor SP2 circuit*
Click here
Throttle position sensor circuit (for 3UR-FE)*
Click here
Throttle position sensor circuit (for 3UR-FBE)*
Click here
Tow/haul pattern select switch circuit
Click here
No. 1 ATF temperature sensor circuit*
Click here
ECM
Click here
Up-shift to 4th from 3rd while engine is cold
Engine coolant temperature sensor circuit (for 3UR-FE)*
Click here
Engine coolant temperature sensor circuit (for 3UR-FBE)*
Click here
ECM
Click here
Up-shift to 5th from 4th while engine is cold
Engine coolant temperature sensor circuit (for 3UR-FE)*
Click here
Engine coolant temperature sensor circuit (for 3UR-FBE)*
Click here
ECM
Click here
No gear change by shifting into "+" or "-" while shift lever on S
Transmission control switch circuit
Click here
ECM
Click here
Harsh engagement (N -> D)
Shift solenoid valve SLT circuit*
Click here
Speed sensor NT circuit*
Click here
ECM
Click here
Harsh engagement (lock-up)
Speed sensor NT circuit*
Click here
Speed sensor SP2 circuit*
Click here
Shift solenoid valve SLU circuit*
Click here
ECM
Click here
Harsh engagement (any gear position)
Throttle position sensor circuit (for 3UR-FE)*
Click here
Throttle position sensor circuit (for 3UR-FBE)*
Click here
Shift solenoid valve SL1 circuit*
Click here
Shift solenoid valve SL2 circuit*
Click here
Shift solenoid valve SLU circuit*
Click here
Shift solenoid valve SLT circuit*
Click here
Speed sensor NT circuit*
Click here
ECM
Click here
Poor acceleration
No. 2 ATF temperature sensor circuit*
Click here
Shift solenoid valve SLT circuit*
Click here
ECM
Click here
No engine brake
ECM
Click here
No kick-down
ECM
Click here
Engine stalls when starting off or stopping
Shift solenoid valve SLU circuit*
Click here
ECM
Click here
ATF temperature warning light remains on, lock-up at 3rd gear and/or shift point too high
No. 2 ATF temperature sensor circuit*
Click here
Engine coolant temperature sensor circuit (for 3UR-FE)*
Click here
Engine coolant temperature sensor circuit (for 3UR-FBE)*
Click here
ECM
Click here
Malfunction in shifting
Park/neutral position switch circuit*
Click here
Transmission control switch circuit
Click here
ECM
Click here
Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th)
Shift solenoid valve SR circuit*
Click here
Slip or shudder (5th -> 6th -> and 6th -> 5th)
Shift solenoid valve SR circuit*
Click here

2. CHAPTER 2: ON-VEHICLE REPAIR AND OFF-VEHICLE REPAIRĀ 
Symptom
Suspected Area
See page
Vehicle does not move when shift lever is in any forward position or reverse position
Transmission control cable (for Column Shift Type)
Click here
Transmission control cable (for Floor Shift Type)
Click here
Manual valve
Click here
Parking lock pawl
Click here
Rear planetary gear unit
Click here
Torque converter
Click here
Vehicle does not move with shift lever on R
Valve body assembly
Click here
B4 brake
Click here
No up-shift (1st -> 2nd)
Valve body assembly
Click here
B3 brake
Click here
F1 one-way clutch
Click here
F2 one-way clutch
Click here
No up-shift (2nd -> 3rd)
Valve body assembly
Click here
C3 clutch
Click here
No up-shift (3rd -> 4th)
Valve body assembly
Click here
C2 clutch
Click here
No up-shift (4th -> 5th)
Valve body assembly
Click here
B1 brake
Click here
No up-shift (5th -> 6th)
Valve body assembly
Click here
B2 brake
Click here
No down-shift (6th -> 5th)
Valve body assembly
Click here
No down-shift (5th -> 4th)
Valve body assembly
Click here
No down-shift (4th -> 3rd)
Valve body assembly
Click here
No down-shift (3rd -> 2nd)
Valve body assembly
Click here
No down-shift (2nd -> 1st)
Valve body assembly
Click here
No lock-up or no lock-up off
Valve body assembly
Click here
Torque converter
Click here
Harsh engagement (N -> D)
Valve body assembly
Click here
C1 accumulator
Click here
C1 clutch
Click here
F3 one-way clutch
Click here
F4 one-way clutch
Click here
Harsh engagement (lock-up)
Valve body assembly
Click here
Torque converter
Click here
Harsh engagement (N -> R)
Valve body assembly
Click here
C3 accumulator
Click here
C3 clutch
Click here
B4 brake
Click here
F1 one-way clutch
Click here
Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th -> 6th)
Valve body assembly
Click here
Harsh engagement (1st -> 2nd)
Valve body assembly
Click here
B3 accumulator
Click here
B3 brake
Click here
F1 one-way clutch
Click here
F2 one-way clutch
Click here
Harsh engagement (2nd -> 3rd)
Valve body assembly
Click here
C3 accumulator
Click here
C3 clutch
Click here
Harsh engagement (3rd -> 4th)
Valve body assembly
Click here
C2 accumulator
Click here
C2 clutch
Click here
Harsh engagement (4th -> 5th)
Valve body assembly
Click here
B1 accumulator
Click here
B1 brake
Click here
Harsh engagement (5th -> 6th)
Valve body assembly
Click here
B2 accumulator
Click here
B2 brake
Click here
Harsh engagement (6th -> 5th)
Valve body assembly
Click here
C3 accumulator
Click here
C3 clutch
Click here
Slip or shudder (forward and reverse, after warm-up)
Transmission control cable (for Column Shift Type)
Click here
Transmission control cable (for Floor Shift Type)
Click here
Valve body assembly
Click here
Oil strainer
Click here
F1 one-way clutch
Click here
C3 clutch
Click here
Torque converter
Click here
Slip or shudder (particular position, just after engine starts)
Torque converter
Click here
Slip or shudder (shift lever on R)
B4 brake
Click here
F1 one-way clutch
Click here
C3 clutch
Click here
Slip or shudder (1st)
C1 clutch
Click here
F3 one-way clutch
Click here
F4 one-way clutch
Click here
Slip or shudder (2nd)
C1 clutch
Click here
B3 brake
Click here
F1 one-way clutch
Click here
F2 one-way clutch
Click here
F4 one-way clutch
Click here
Slip or shudder (3rd)
C1 clutch
Click here
C3 clutch
Click here
F1 one-way clutch
Click here
F4 one-way clutch
Click here
Slip or shudder (4th)
C1 clutch
Click here
C2 clutch
Click here
F4 one-way clutch
Click here
Slip or shudder (5th)
C2 clutch
Click here
C3 clutch
Click here
B1 brake
Click here
Slip or shudder (6th)
C2 clutch
Click here
B2 brake
Click here
No engine braking (1st to 4th, shift lever on S)
C4 clutch
Click here
No engine braking (1st: shift lever on 1)
Valve body assembly
Click here
B4 brake
Click here
No engine braking (2nd: shift lever on 2)
Valve body assembly
Click here
B2 brake
Click here
No engine braking (3rd: shift lever on 3)
Valve body assembly
Click here
B1 brake
Click here
No engine braking (4th: shift lever on 4)
Valve body assembly
Click here
No kick-down
Valve body assembly
Click here
Shift point too high or too low
Valve body assembly
Click here
Poor acceleration (all positions)
Valve body assembly
Click here
Torque converter
Click here
Poor acceleration (6th)
B2 brake
Click here
C2 clutch
Click here
Front planetary gear unit
Click here
Engine stalls when starting off or stopping
Valve body assembly
Click here
Torque converter
Click here