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 trouble still occurs even though there are no abnormalities in any of the other circuits, check and replace the TCM.
*: When the circuit is defective, a DTC may be stored.
| Symptom | Suspected Area | See page |
|---|---|---|
| Up-shifts between 1st and 4th gear do not occur | Shift solenoid valve S1 circuit* | |
| Shift solenoid valve S2 circuit* | ||
| TCM | ||
| No up-shift (4th -> 5th) | Engine coolant temperature sensor circuit* | - |
| Speed sensor NT circuit* | ||
| Shift solenoid valve SL1 circuit* | ||
| Shift solenoid valve SL2 circuit* | ||
| Shift solenoid valve SR circuit* | ||
| TCM | ||
| No up-shift (3rd -> 4th) | Engine coolant temperature sensor circuit* | - |
| Shift solenoid valve S2 circuit* | ||
| TCM | ||
| No up-shift (1st -> 2nd) | TCM | |
| No down-shift (5th -> 4th) | Shift solenoid valve SL1 circuit* | |
| Shift solenoid valve SL2 circuit* | ||
| Shift solenoid valve SR circuit* | ||
| TCM | ||
| No down-shift (2nd -> 1st) | Shift solenoid valve S2 circuit* | |
| TCM | ||
| Down-shifts between 4th and 1st gear do not occur | Shift solenoid valve S1 circuit* | |
| Shift solenoid valve S2 circuit* | ||
| TCM | ||
| No lock-up | No. 1 ATF temperature sensor circuit* | |
| Stop light switch circuit* | ||
| Speed sensor NT circuit* | ||
| Shift solenoid valve SLU circuit* | ||
| Engine coolant temperature sensor circuit* | - | |
| TCM | ||
| No lock-up off | Shift solenoid valve SLU circuit* | |
| TCM | ||
| Shift point too high or too low | Shift solenoid valve SLT circuit* | |
| Speed sensor NT circuit* | ||
| Speed sensor SP2 circuit* | ||
| Throttle position sensor circuit* | - | |
| No. 1 ATF temperature sensor circuit* | ||
| TCM | ||
| Up-shift to 5th from 4th while shift lever on 4 | Transmission control switch circuit (D - 4)* | - |
| TCM | ||
| Up-shift to 5th from 4th while engine is cold | Engine coolant temperature sensor circuit* | - |
| TCM | ||
| Up-shift to 4th from 3rd while shift lever on 3 | Park/neutral position switch circuit* | - |
| TCM | ||
| Up-shift to 3rd from 2nd while shift lever on 2 | Park/neutral position switch circuit* | - |
| TCM | ||
| Up-shift to 2nd from 1st while shift lever on L | Transmission control switch circuit (2 - L)* | - |
| TCM | ||
| Harsh engagement (N -> D) | Speed sensor NT circuit* | |
| Shift solenoid valve SL1 circuit* | ||
| Shift solenoid valve SLT circuit* | ||
| TCM | ||
| Harsh engagement (Lock-up) | Speed sensor NT circuit* | |
| Speed sensor SP2 circuit* | ||
| Shift solenoid valve SLU circuit* | ||
| TCM | ||
| Harsh engagement (Any gear position) | TCM | |
| Poor acceleration | No. 2 ATF temperature sensor circuit* | |
| Engine coolant temperature sensor circuit* | - | |
| Shift solenoid valve SLT circuit* | ||
| TCM | ||
| No engine braking | TCM | |
| No kick-down | TCM | |
| Engine stalls when starting off or stopping | Shift solenoid valve SLU circuit* | |
| TCM | ||
| ATF temperature warning light remains on | No. 2 ATF temperature sensor circuit* | |
| Engine coolant temp. sensor circuit* | - | |
| TCM | ||
| Lock-up at 3rd gear | No. 2 ATF temperature sensor circuit* | |
| Engine coolant temp. sensor circuit* | - | |
| TCM | ||
| Shift point too high | No. 2 ATF temperature sensor circuit* | |
| Engine coolant temp. sensor circuit* | - | |
| TCM | ||
| A/T P indicator light does not illuminate | A/T P indicator light circuit | |
| Combination meter circuit | - | |
| Malfunction in shifting | Park/neutral position switch circuit* | |
| TCM |
| Symptom | Suspected Area | See page |
|---|---|---|
| Vehicle does not move with shift lever in any forward position and reverse position | Transmission control cable | |
| Manual valve | ||
| Parking lock pawl | ||
| Off-vehicle repair matrix chart | - | |
| Vehicle does not move with shift lever in R | Valve body assembly | |
| Off-vehicle repair matrix chart | - | |
| No up-shift (1st -> 2nd) | Valve body assembly | |
| Off-vehicle repair matrix chart | - | |
| No up-shift (2nd -> 3rd) | Valve body assembly | |
| Off-vehicle repair matrix chart | - | |
| No up-shift (3rd -> 4th) | Valve body assembly | |
| Off-vehicle repair matrix chart | - | |
| No up-shift (4th -> 5th) | Valve body assembly | |
| Off-vehicle repair matrix chart | - | |
| No down-shift (5th -> 4th) | Valve body assembly | |
| Off-vehicle repair matrix chart | - | |
| No down-shift (4th -> 3rd) | Valve body assembly | |
| Off-vehicle repair matrix chart | - | |
| No down-shift (3rd -> 2nd) | Valve body assembly | |
| Off-vehicle repair matrix chart | - | |
| No down-shift (2nd -> 1st) | Valve body assembly | |
| Off-vehicle repair matrix chart | - | |
| No lock-up or no lock-up off | Shift solenoid valve SLU | |
| Valve body assembly | ||
| Off-vehicle repair matrix chart | - | |
| Harsh engagement (N -> D) | Shift solenoid valve SL1 | |
| Valve body assembly | ||
| C1 accumulator | ||
| Off-vehicle repair matrix chart | - | |
| Harsh engagement (Lock-up) | Shift solenoid valve SLU | |
| Valve body assembly | ||
| Off-vehicle repair matrix chart | - | |
| Harsh engagement (N -> R) | Shift solenoid valve SLT | |
| Shift solenoid valve SLU | ||
| Valve body assembly | ||
| C3 accumulator | ||
| Off-vehicle repair matrix chart | - | |
| Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th) | Shift solenoid valve SLT | |
| Shift solenoid valve SL1 | ||
| Valve body assembly | ||
| Harsh engagement (1st -> 2nd) | Valve body assembly | |
| B3 accumulator | ||
| Off-vehicle repair matrix chart | - | |
| Harsh engagement (2nd -> 3rd) | Valve body assembly | |
| C3 accumulator | ||
| Off-vehicle repair matrix chart | - | |
| Harsh engagement (3rd -> 4th) | Valve body assembly | |
| C2 accumulator | ||
| Off-vehicle repair matrix chart | - | |
| Harsh engagement (4th -> 5th) | Shift solenoid valve SL1 | |
| Shift solenoid valve SL2 | ||
| Valve body assembly | ||
| Off-vehicle repair matrix chart | - | |
| Harsh engagement (5th -> 4th) | Shift solenoid valve SL1 | |
| Shift solenoid valve SL2 | ||
| Valve body assembly | ||
| Off-vehicle repair matrix chart | - | |
| Slip or shudder (Forward and reverse) | Transmission control cable | |
| Valve body assembly | ||
| Oil strainer | ||
| Off-vehicle repair matrix chart | - | |
| No engine braking (1st/shift lever on L) | Valve body assembly | - |
| Off-vehicle repair matrix chart | - | |
| No engine braking (2nd/shift lever on 2) | Valve body assembly | - |
| Off-vehicle repair matrix chart | - | |
| No kick-down | Valve body assembly | |
| Shift point too high or too low | Shift solenoid valve SLT | |
| Shift solenoid valve SL1 | ||
| Valve body assembly | ||
| Poor acceleration | Shift solenoid valve SLT | |
| Valve body assembly | ||
| Engine stalls when starting off or stopping | Shift solenoid valve SLU | |
| Valve body assembly |
| Symptom | Suspected Area | See page |
|---|---|---|
| Vehicle does not move with shift lever in any forward position and reverse position | Rear planetary gear unit | |
| Torque converter clutch | ||
| Vehicle does not move with shift lever in R | Brake No. 4 (B4) | |
| Clutch No. 3 (C3) | ||
| One-way clutch No. 1 (F1) | ||
| No up-shift (1st -> 2nd) | Brake No. 3 (B3) | |
| One-way clutch No. 1 (F1) | ||
| One-way clutch No. 2 (F2) | ||
| No up-shift (2nd -> 3rd) | Clutch No. 3 (C3) | |
| No up-shift (3rd -> 4th) | Clutch No. 2 (C2) | |
| No up-shift (4th -> 5th) | Brake No. 1 (B1) | |
| Clutch No. 1 (C1) | ||
| No lock-up or no lock-up off | Torque converter clutch | |
| Harsh engagement (N -> D) | Clutch No. 1 (C1) | |
| One-way clutch No. 3 (F3) | ||
| Harsh engagement (N -> R) | Clutch No. 3 (C3) | |
| Brake No. 4 (B4) | ||
| One-way clutch No. 1 (F1) | ||
| Harsh engagement (1st -> 2nd) | Brake No. 3 (B3) | |
| One-way clutch No. 1 (F1) | ||
| One-way clutch No. 2 (F2) | ||
| Harsh engagement (2nd -> 3rd) | Clutch No. 3 (C3) | |
| Harsh engagement (3rd -> 4th) | Clutch No. 2 (C2) | |
| Harsh engagement (4th -> 5th) | Brake No. 1 (B1) | |
| Clutch No. 1 (C1) | ||
| Harsh engagement (Lock-up) | Torque converter clutch | |
| Slip or shudder (Forward and reverse: after engine is warmed up) | One-way clutch No. 1 (F1) | |
| Clutch No. 3 (C3) | ||
| Torque converter clutch | ||
| Slip or shudder (Particular position: just after engine starts) | Torque converter clutch | |
| Slip or shudder (R position) | Brake No. 4 (B4) | |
| One-way clutch No. 1 (F1) | ||
| Clutch No. 3 (C3) | ||
| Slip or shudder (1st) | Clutch No. 1 (C1) | |
| One-way clutch No. 3 (F3) | ||
| Slip or shudder (2nd) | Clutch No. 1 (C1) | |
| Brake No. 3 (B3) | ||
| One-way clutch No. 1 (F1) | ||
| One-way clutch No. 2 (F2) | ||
| Slip or shudder (3rd) | Clutch No. 1 (C1) | |
| Clutch No. 3 (C3) | ||
| One-way clutch No. 1 (F1) | ||
| Slip or shudder (4th) | Clutch No. 1 (C1) | |
| Clutch No. 2 (C2) | ||
| Slip or shudder (5th) | Clutch No. 2 (C2) | |
| Clutch No. 3 (C3) | ||
| Brake No. 1 (B1) | ||
| No engine braking (1st +- 4th/shift lever on D) | C1 Clutch | - |
| No engine braking (1st/shift lever on L) | B4 Brake | - |
| No engine braking (2nd/shift lever on 2) | B2 Brake | - |
| No engine braking (3rd/shift lever on 3) | B1 Brake | - |
| No engine braking (all shift lever positions) | Torque converter clutch | - |
| Poor acceleration (5th) | Clutch No. 1 (C1) | |
| Clutch No. 3 (C3) | ||
| Brake No. 1 (B1) | ||
| Front planetary gear unit | ||
| Engine stalls when starting off or stopping | Torque converter clutch |