AUTOMATIC TRANSAXLE SYSTEM > PROBLEM SYMPTOMS TABLE |
for Preparation Click here
- HINT:
- If a normal code is displayed during the diagnostic trouble code check although the problem or symptom still occurs, check the electrical circuits for each symptom in the order given in the charts on the following pages. Proceed to the page given in the chart and perform troubleshooting.
- The Matrix Chart is divided into 2 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 on matrix chart" is given in the flow chart of each circuit, proceed to the circuit with the next highest number 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 TCM.
- Chapter 2:
- Chapter 2 covers on-and off-vehicle repair of the transaxle. Contents specified in the table below may not match while fail-safe control is operating.
Symptom | Suspected Area | See page |
No up-shift (1st to 2nd) | 1. Shift solenoid valve (SL3) circuit *1 |
Click here
|
2. TCM |
Click here
| |
No up-shift (2nd to 3rd) | 1. Shift solenoid valve (SL4) circuit *1 |
Click here
|
2. TCM |
Click here
| |
No up-shift (3rd to 4th) | 1. Shift solenoid valve (SL2) circuit *1 |
Click here
|
2. Engine coolant temp. sensor circuit *1 |
Click here
| |
3. TCM |
Click here
| |
No up-shift (4th to 5th) | 1. Shift solenoid valve (SL1) circuit *1 |
Click here
|
2. Shift solenoid valve (SL4) circuit *1 |
Click here
| |
3. Engine coolant temp. sensor circuit |
Click here
| |
4. TCM |
Click here
| |
No up-shift (5th to 6th) | 1. Engine coolant temp. sensor circuit *1 |
Click here
|
2. Shift solenoid valve (SL3) circuit *1 |
Click here
| |
3. Shift solenoid valve (SL4) circuit *1 |
Click here
| |
4. TCM |
Click here
| |
No down-shift (6th to 5th) | 1. Shift solenoid valve (SL4) circuit *1 |
Click here
|
2. TCM |
Click here
| |
No down-shift (5th to 4th) | 1. Shift solenoid valve (SL1) circuit *1 |
Click here
|
2. TCM |
Click here
| |
No down-shift (4th to 3rd) | 1. Shift solenoid valve (SL2) circuit *1 |
Click here
|
2. Shift solenoid valve (SL4) circuit *1 |
Click here
| |
3. TCM |
Click here
| |
No down-shift (3rd to 2nd) | 1. Shift solenoid valve (SL4) circuit *1 |
Click here
|
2. Shift solenoid valve (SL3) circuit *1 |
Click here
| |
3. TCM |
Click here
| |
No down-shift (2nd to 1st) | 1. Shift solenoid valve (SL3) circuit *1 |
Click here
|
2. TCM |
Click here
| |
No lock-up | 1. Shift solenoid valve (SLU) circuit *1 |
Click here
|
2. Shift solenoid valve (SL) circuit |
Click here
| |
3. Engine coolant temp. sensor circuit *1 |
Click here
| |
4. Stop light switch circuit *1 |
Click here
| |
5. Speed sensor NT circuit *1 |
Click here
| |
6. TCM |
Click here
| |
No lock-up off | 1. TCM |
Click here
|
Shift point too high or too low | 1. Shift solenoid valve (SLT) circuit *1 |
Click here
|
2. Speed sensor NT circuit *1 |
Click here
| |
3. Speed sensor NC circuit *1 |
Click here
| |
4. Accelerator pedal position sensor circuit *1 |
Click here
| |
5. ATF temperature sensor circuit *1 |
Click here
| |
6. TCM |
Click here
| |
Up-shift from 3rd to 4th while engine is cold | 1. Engine coolant temp. sensor circuit *1 |
Click here
|
2. TCM |
Click here
| |
Up-shift from 4th to 5th while engine is cold | 1. Engine coolant temp. sensor circuit *1 |
Click here
|
2. TCM |
Click here
| |
No gear change by shifting into "+" or "-" while shifting the lever | 1. Transmission control switch circuit |
Click here
|
2. TCM |
Click here
| |
Harsh engagement (N to D) | 1. Shift solenoid valve (SL1) circuit *1 |
Click here
|
2. TCM |
Click here
| |
Harsh engagement (Lock-up) | 1. Speed sensor NT circuit *1 |
Click here
|
2. Speed sensor NC circuit *1 |
Click here
| |
3. Shift solenoid valve (SLU) circuit *1 |
Click here
| |
4. TCM |
Click here
| |
Harsh engagement (Any driving position) | 1. Accelerator pedal position sensor circuit *1 |
Click here
|
2. Shift solenoid valve (SLT) circuit *1 |
Click here
| |
3. Speed sensor NC circuit |
Click here
| |
4. Speed sensor NT circuit *1 |
Click here
| |
5. TCM |
Click here
| |
Poor acceleration | 1. Shift solenoid valve (SLT) circuit *1 |
Click here
|
2. TCM |
Click here
| |
No engine brake | TCM |
Click here
|
No kick-down | TCM |
Click here
|
Engine stalls when starting off or stopping | 1. TCM |
Click here
|
Malfunction in shifting | 1. Park / neutral position switch circuit *1 |
Click here
|
2. Transmission control switch circuit |
Click here
| |
3. TCM |
Click here
| |
Slip or shudder (5th to 6th and 6th to 5th) | Shift solenoid valve (SLT) circuit *1 |
Click here
|
Initial acceleration or subsequent acceleration is improper. Vehicle is stuck in a gear (1st to 6th). | 1. Shift solenoid valve (SL1) circuit |
Click here
|
2. Shift solenoid valve (SLT) circuit |
Click here
| |
3. TCM |
Click here
| |
Acceleration is improper when the gear is 4th or higher. | 1. Shift solenoid valve (SL2) circuit |
Click here
|
2. Shift solenoid valve (SLT) circuit |
Click here
| |
3. TCM |
Click here
| |
Initial acceleration or subsequent acceleration is improper. Vehicle does not shift down (from 4th to 3rd). Vehicle is stuck in a gear (1st to 4th). | 1. Shift solenoid valve (SL2) circuit |
Click here
|
2. TCM |
Click here
| |
Acceleration is improper when the gear is 6th. | 1. Shift solenoid valve (SL3) circuit |
Click here
|
2. TCM |
Click here
| |
Acceleration is improper when the gear is 3rd or 5th. | 1. Shift solenoid valve (SL4) circuit |
Click here
|
2. Shift solenoid valve (SLT) circuit |
Click here
| |
3. TCM |
Click here
| |
Initial acceleration or subsequent acceleration is improper. Vehicle does not shift down (from 3rd to 2nd). No up-shift (5th to 6th). | 1. Shift solenoid valve (SL4) circuit |
Click here
|
2. TCM |
Click here
|
- HINT:
- *1: When the circuit is defective, a DTC may be output.
Symptom | Suspected Area | See page |
Vehicle does not move in any forward and reverse positions | 1. Valve body assembly |
Click here
|
2. Torque converter clutch |
Click here
| |
Vehicle does not move in R position | 1. Valve body assembly |
Click here
|
2. Brake No. 2 (B2) |
Click here
| |
3. Brake No. 3 (B3) |
Click here
| |
4. Shift solenoid valve (SL4)*1 |
Click here
| |
No up-shift (1st to 2nd) | 1. Valve body assembly |
Click here
|
2. Brake No. 1 (B1) |
Click here
| |
3. Shift solenoid valve (SL3)*1 |
Click here
| |
No up-shift (2nd to 3rd) | 1. Valve body assembly |
Click here
|
2. Brake No. 3 (B3) |
Click here
| |
3. Shift solenoid valve (SL4)*1 |
Click here
| |
No up-shift (3rd to 4th) | 1. Valve body assembly |
Click here
|
2. Clutch No. 2 (C2) |
Click here
| |
3. Shift solenoid valve (SL2)*1 |
Click here
| |
No up-shift (4th to 5th) | 1. Valve body assembly |
Click here
|
2. Brake No. 3 (B3) |
Click here
| |
3. Shift solenoid valve (SL4)*1 |
Click here
| |
4. Shift solenoid valve (SL1)*1 |
Click here
| |
No up-shift (5th to 6th) | 1.Valve body assembly |
Click here
|
2. Brake No. 1 (B1) |
Click here
| |
3. Shift solenoid valve (SL3)*1 |
Click here
| |
4. Shift solenoid valve (SL4)*1 |
Click here
| |
No down-shift (6th to 5th) | 1. Valve body assembly |
Click here
|
2. Brake No. 3 (B3) |
Click here
| |
3. Shift solenoid valve (SL4)*1 |
Click here
| |
No down-shift (5th to 4th) | 1. Valve body assembly |
Click here
|
2. Shift solenoid valve (SL1)*1 |
Click here
| |
3. Clutch No. 2 (C1) |
Click here
| |
No down-shift (4th to 3rd) | 1. Valve body assembly |
Click here
|
2. Brake No. 3 (B3) |
Click here
| |
3. Shift solenoid valve (SL4)*1 |
Click here
| |
4. Shift solenoid valve (SL2)*1 |
Click here
| |
No down-shift (3rd to 2nd) | 1. Valve body assembly |
Click here
|
2. Brake No. 1 (B1) |
Click here
| |
3. Shift solenoid valve (SL3)*1 |
Click here
| |
4. Shift solenoid valve (SL4)*1 |
Click here
| |
No down-shift (2nd to 1st) | 1. Valve body assembly |
Click here
|
2. Shift solenoid valve (SL3)*1 |
Click here
| |
No lock-up, or no lock-up off | 1. Valve body assembly |
Click here
|
2. Torque converter clutch |
Click here
| |
Harsh engagement (N to D) | 1. Valve body assembly |
Click here
|
2. C1 accumulator |
Click here
| |
3. One-way clutch No. 1 (F1) |
Click here
| |
4. Clutch No. 1 (C1) |
Click here
| |
5. Shift solenoid valve (SL1)*1 |
Click here
| |
Harsh engagement (Lock-up) | 1. Valve body assembly |
Click here
|
2. Torque converter clutch |
Click here
| |
3. Shift solenoid valve (SLU)*1 |
Click here
| |
Harsh engagement (N to R) | 1. Valve body assembly |
Click here
|
2. Brake No. 2 (B2) |
Click here
| |
3. Brake No. 3 (B3) |
Click here
| |
4. Shift solenoid valve (SL4)*1 |
Click here
| |
Harsh engagement (1 to 2 to 3 to 4 to 5 to 6) | 1. Valve body assembly |
Click here
|
2. Shift solenoid valve (SLT)*1 |
Click here
| |
Harsh engagement (1st to 2nd) | 1. Valve body assembly |
Click here
|
2. B1 accumulator |
Click here
| |
3. Brake No. 1 (B1) |
Click here
| |
4. Shift solenoid valve (SL3)*1 |
Click here
| |
Harsh engagement (2nd to 3rd) | 1. Valve body assembly |
Click here
|
2. B3 accumulator |
Click here
| |
3. Brake No. 3 (B3) |
Click here
| |
4. Shift solenoid valve (SL4)*1 |
Click here
| |
Harsh engagement (3rd to 4th) | 1. Valve body assembly |
Click here
|
2. C2 accumulator |
Click here
| |
3. Clutch No. 2 (C2) |
Click here
| |
4. Shift solenoid valve (SL2)*1 |
Click here
| |
Harsh engagement (4th to 5th) | 1. Valve body assembly |
Click here
|
2. B3 accumulator |
Click here
| |
3. Brake No. 3 (B3) |
Click here
| |
4. Shift solenoid valve (SL4)*1 |
Click here
| |
Harsh engagement (5th to 6th) | 1. Valve body assembly |
Click here
|
2. B1 accumulator |
Click here
| |
3. Brake No. 1 (B1) |
Click here
| |
4. Shift solenoid valve (SL3)*1 |
Click here
| |
Harsh engagement (6th to 5th) | 1. Valve body assembly |
Click here
|
2. B3 accumulator |
Click here
| |
3. Brake No. 3 (B3) |
Click here
| |
4. Shift solenoid valve (SL4)*1 |
Click here
| |
Slip or shudder (Forward and reverse: After warm-up) | 1. Valve body assembly |
Click here
|
2. Oil strainer |
Click here
| |
3. Brake No. 1 (B1) |
Click here
| |
4. Brake No. 2 (B2) |
Click here
| |
5. Brake No. 3 (B3) |
Click here
| |
6. One-way clutch No. 1 (F1) |
Click here
| |
7. Clutch No. 1 (C1) |
Click here
| |
8. Clutch No. 2 (C2) |
Click here
| |
Slip or shudder (Particular position: just after engine starts) | Torque converter clutch |
Click here
|
Slip or shudder (R position) | 1. Brake No. 2 (B2) |
Click here
|
2. Brake No. 3 (B3) |
Click here
| |
Slip or shudder (1 position) | 1. One-way clutch No. 1 (F1) |
Click here
|
2. Clutch No. 1 (C1) |
Click here
| |
Slip or shudder (2 position) | 1. Brake No. 1 (B1) |
Click here
|
2. Clutch No. 1 (C1) |
Click here
| |
Slip or shudder (3 position) | 1. Brake No. 3 (B3) |
Click here
|
2. Clutch No. 1 (C1) |
Click here
| |
Slip or shudder (4 position) | 1. Clutch No. 1 (C1) |
Click here
|
2. Clutch No. 2 (C2) |
Click here
| |
Slip or shudder (5 position) | 1. Brake No. 3 (B3) |
Click here
|
2. Clutch No. 2 (C2) |
Click here
| |
Slip or shudder (6 position) | 1. Brake No. 3 (B3) |
Click here
|
2. Clutch No. 2 (C2) |
Click here
| |
No engine braking (1 position) | 1. Valve body assembly |
Click here
|
2. Brake No. 2 (B2) |
Click here
| |
No engine braking (2 position) | 1. Valve body assembly |
Click here
|
2. Brake No. 1 (B1) |
Click here
| |
No engine braking (3 position) | 1. Valve body assembly |
Click here
|
2. Brake No. 3 (B3) |
Click here
| |
No engine braking (4 position) | 1. Valve body assembly |
Click here
|
2. Clutch No. 2 (C2) |
Click here
| |
No kick-down | Valve body assembly |
Click here
|
Shift point too hight or too low | Valve body assembly |
Click here
|
Poor acceleration (All positions) | 1. Valve body assembly |
Click here
|
2. Torque converter clutch |
Click here
| |
Poor acceleration (6th) | 1. Brake No. 1 (B1) |
Click here
|
2. Clutch No. 2 (C2) |
Click here
| |
Engine stalls when starting off or stopping | 1. Valve body assembly |
Click here
|
2. Torque converter clutch |
Click here
|
- HINT:
- *1: When the solenoid is defective, a DTC may be output.