AUTOMATIC TRANSMISSION SYSTEM (for 1GR-FE) PROBLEM SYMPTOMS TABLE

Tech Tips


  • If a normal code is output during the diagnostic trouble code check although the trouble still occurs, check the electrical circuits for each symptom in the order given in the charts below and proceed to the "See page".

  • The Matrix Chart is divided into 3 chapters.

    Chapter 1:

    Refer to the table below when the trouble cause is considered to be electrical.

  • If the instruction "Proceed to next circuit inspection shown in problem symptoms table" is given in the flowchart of each circuit, proceed to the next circuit in the table to continue the check.

  • If the trouble still occurs even though there are no abnormalities in any of the other circuits, check and replace the ECM.

  • *: When the circuit is defective, a DTC may be stored.

1. Chapter 1: Electronic Circuit Matrix Chart
Symptom Suspected Area See page
Up-shifts between 1st and 4th gear do not occur Shift solenoid valve S1 circuit*

Click here

Shift solenoid valve S2 circuit*

Click here

ECM

Click here

No up-shift (4th -> 5th) Engine coolant temperature sensor circuit*

Click here

Speed sensor NT circuit*

Click here

Shift solenoid valve SL1 circuit*

Click here

Shift solenoid valve SL2 circuit*

Click here

Shift solenoid valve SR circuit*

Click here

ECM

Click here

No up-shift (3rd -> 4th) Engine coolant temperature sensor circuit*

Click here

Shift solenoid valve S2 circuit*

Click here

ECM

Click here

No up-shift (1st -> 2nd) ECM

Click here

No down-shift (5th -> 4th) Shift solenoid valve SL1 circuit*

Click here

Shift solenoid valve SL2 circuit*

Click here

Shift solenoid valve SR circuit*

Click here

ECM

Click here

No down-shift (2nd -> 1st) Shift solenoid valve S2 circuit*

Click here

ECM

Click here

Down-shifts between 4th and 1st gear do not occur Shift solenoid valve S1 circuit*

Click here

Shift solenoid valve S2 circuit*

Click here

ECM

Click here

No lock-up No. 1 ATF temperature sensor circuit*

Click here

Stop light switch circuit*

Click here

Speed sensor NT circuit*

Click here

Shift solenoid valve SLU circuit*

Click here

Engine coolant temperature sensor 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*

Click here

Pattern select (PWR) switch circuit

Click here

No. 1 ATF temperature sensor circuit*

Click here

ECM

Click here

Up-shift to 5th from 4th while engine is cold Engine coolant temperature sensor circuit*

Click here

ECM

Click here

Harsh engagement (N -> D) Speed sensor NT circuit*

Click here

Shift solenoid valve SL1 circuit*

Click here

Shift solenoid valve SLT 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) ECM

Click here

Poor acceleration No. 2 ATF temperature sensor circuit*

Click here

Engine coolant temperature sensor circuit*

Click here

Shift solenoid valve SLT circuit*

Click here

Pattern select (2ND) switch circuit

Click here

ECM

Click here

No engine braking 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

ECT 2ND does not operate Shift solenoid valve SLT circuit*

Click here

Pattern select (2ND) switch circuit

Click here

ECM

Click here

ATF temperature warning light remains on, lock-up at 3rd gear and/or shift position too high No. 2 ATF temperature sensor circuit*

Click here

Engine coolant temperature sensor circuit*

Click here

ECM

Click here

No gear change by shifting into "+" or "-" while shift lever in S Transmission control switch circuit

Click here

ECM

Click here

Malfunction in shifting Park/neutral position switch circuit*

Click here

Transmission control switch circuit

Click here

ECM

Click here

2. Chapter 2: On-vehicle Repair
Symptom Suspected Area See page
Vehicle does not move with shift lever in any forward position and reverse position Floor shift gear shifting rod sub-assembly

Click here

Manual valve

Click here

Parking lock pawl

Click here

Off-vehicle repair matrix chart -
Vehicle does not move with shift lever in R Valve body assembly

Click here

Off-vehicle repair matrix chart -
No up-shift (1st -> 2nd) Valve body assembly

Click here

Off-vehicle repair matrix chart -
No up-shift (2nd -> 3rd) Valve body assembly

Click here

Off-vehicle repair matrix chart -
No up-shift (3rd -> 4th) Valve body assembly

Click here

Off-vehicle repair matrix chart -
No up-shift (4th -> 5th) Valve body assembly

Click here

Off-vehicle repair matrix chart -
No down-shift (5th -> 4th) Valve body assembly

Click here

Off-vehicle repair matrix chart -
No down-shift (4th -> 3rd) Valve body assembly

Click here

Off-vehicle repair matrix chart -
No down-shift (3rd -> 2nd) Valve body assembly

Click here

Off-vehicle repair matrix chart -
No down-shift (2nd -> 1st) Valve body assembly

Click here

Off-vehicle repair matrix chart -
No lock-up or no lock-up off Shift solenoid valve SLU

Click here

Valve body assembly

Click here

Off-vehicle repair matrix chart -
Harsh engagement (N -> D) Shift solenoid valve SL1

Click here

Valve body assembly

Click here

C1 accumulator

Click here

Off-vehicle repair matrix chart -
Harsh engagement (Lock-up) Shift solenoid valve SLU

Click here

Valve body assembly

Click here

Off-vehicle repair matrix chart -
Harsh engagement (N -> R) Shift solenoid valve SLT

Click here

Shift solenoid valve SLU

Click here

Valve body assembly

Click here

C3 accumulator

Click here

Off-vehicle repair matrix chart -
Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th) Shift solenoid valve SLT

Click here

Shift solenoid valve SL1

Click here

Valve body assembly

Click here

Harsh engagement (1st -> 2nd) Valve body assembly

Click here

B3 accumulator

Click here

Off-vehicle repair matrix chart -
Harsh engagement (2nd -> 3rd) Valve body assembly

Click here

C3 accumulator

Click here

Off-vehicle repair matrix chart -
Harsh engagement (3rd -> 4th) Valve body assembly

Click here

C2 accumulator

Click here

Off-vehicle repair matrix chart -
Harsh engagement (4th -> 5th) Shift solenoid valve SL1

Click here

Shift solenoid valve SL2

Click here

Valve body assembly

Click here

Off-vehicle repair matrix chart -
Harsh engagement (5th -> 4th) Shift solenoid valve SL1

Click here

Shift solenoid valve SL2

Click here

Valve body assembly

Click here

Off-vehicle repair matrix chart -
Slip or shudder (Forward and reverse) Floor shift gear shifting rod sub-assembly

Click here

Valve body assembly

Click here

Oil strainer

Click here

Off-vehicle repair matrix chart -
No kick-down Valve body assembly

Click here

Shift point too high or too low Shift solenoid valve SLT

Click here

Shift solenoid valve SL1

Click here

Valve body assembly

Click here

Poor acceleration Shift solenoid valve SLT

Click here

Valve body assembly

Click here

Engine stalls when starting off or stopping Shift solenoid valve SLU

Click here

Valve body assembly

Click here

3. Chapter 3: Off-vehicle Repair
Symptom Suspected Area See page
Vehicle does not move with shift lever in any forward position and reverse position Rear planetary gear unit

Click here

Torque converter clutch

Click here

Vehicle does not move with shift lever in R Brake No. 4 (B4)

Click here

Clutch No. 3 (C3)

Click here

One-way clutch No. 1 (F1)

Click here

No up-shift (1st -> 2nd) Brake No. 3 (B3)

Click here

One-way clutch No. 1 (F1)

Click here

One-way clutch No. 2 (F2)

Click here

No up-shift (2nd -> 3rd) Clutch No. 3 (C3)

Click here

No up-shift (3rd -> 4th) Clutch No. 2 (C2)

Click here

No up-shift (4th -> 5th) Brake No. 1 (B1)

Click here

Clutch No. 1 (C1)

Click here

No lock-up or no lock-up off Torque converter clutch

Click here

Harsh engagement (N -> D) Clutch No. 1 (C1)

Click here

One-way clutch No. 3 (F3)

Click here

Harsh engagement (N -> R) Clutch No. 3 (C3)

Click here

Brake No. 4 (B4)

Click here

One-way clutch No. 1 (F1)

Click here

Harsh engagement (1st -> 2nd) Brake No. 3 (B3)

Click here

One-way clutch No. 1 (F1)

Click here

One-way clutch No. 2 (F2)

Click here

Harsh engagement (2nd -> 3rd) Clutch No. 3 (C3)

Click here

Harsh engagement (3rd -> 4th) Clutch No. 2 (C2)

Click here

Harsh engagement (4th -> 5th) Brake No. 1 (B1)

Click here

Clutch No. 1 (C1)

Click here

Harsh engagement (Lock-up) Torque converter clutch

Click here

Slip or shudder (Forward and reverse: after engine is warmed up) One-way clutch No. 1 (F1)

Click here

Clutch No. 3 (C3)

Click here

Torque converter clutch

Click here

Slip or shudder (Particular position: just after engine starts) Torque converter clutch

Click here

Slip or shudder (R position) Brake No. 4 (B4)

Click here

One-way clutch No. 1 (F1)

Click here

Clutch No. 3 (C3)

Click here

Slip or shudder (1st) Clutch No. 1 (C1)

Click here

One-way clutch No. 3 (F3)

Click here

Slip or shudder (2nd) Clutch No. 1 (C1)

Click here

Brake No. 3 (B3)

Click here

One-way clutch No. 1 (F1)

Click here

One-way clutch No. 2 (F2)

Click here

Slip or shudder (3rd) Clutch No. 1 (C1)

Click here

Clutch No. 3 (C3)

Click here

One-way clutch No. 1 (F1)

Click here

Slip or shudder (4th) Clutch No. 1 (C1)

Click here

Clutch No. 2 (C2)

Click here

Slip or shudder (5th) Clutch No. 2 (C2)

Click here

Clutch No. 3 (C3)

Click here

Brake No. 1 (B1)

Click here

No engine braking (1st to 4th: D position) Clutch No. 1 (C1)

Click here

Poor acceleration (All positions) Torque converter clutch

Click here

Poor acceleration (5th) Clutch No. 1 (C1)

Click here

Clutch No. 3 (C3)

Click here

Brake No. 1 (B1)

Click here

Front planetary gear unit

Click here

Engine stalls when starting off or stopping Torque converter clutch

Click here