AUTOMATIC TRANSMISSION SYSTEM(for 1VD-FTV) PROBLEM SYMPTOMS TABLE
Tech Tips
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Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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.
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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.
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If the instruction "Proceed to Next Suspected Area Shown in Problem Symptoms Table" is given in the flowchart for each circuit, proceed to the next suspected area in the table.
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If the problem still occurs even though there are no malfunctions in any of the circuits, check the ECM and replace it if necessary.
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*: When the circuit is defective, a DTC may be stored.
| Symptom | Suspected Area | See page |
|---|---|---|
| No up-shift (1st -> 2nd) | Shift solenoid valve S1 circuit* | |
| ECM | ||
| No up-shift (2nd -> 3rd) | Shift solenoid valve S2 circuit* | |
| ECM | ||
| No up-shift (3rd -> 4th) | Shift solenoid valve S3 circuit* | |
| ECM | ||
| No up-shift (4th -> 5th) | Shift solenoid valve S4 circuit* | |
| Shift solenoid valve SR circuit* | ||
| Shift solenoid valve SL1 circuit* | ||
| Shift solenoid valve SL2 circuit* | ||
| ECM | ||
| No up-shift (5th -> 6th) | Park/neutral position switch circuit* | |
| Shift solenoid valve S2 circuit* | ||
| ECM | ||
| No down-shift (6th -> 5th) | Park/neutral position switch circuit* | |
| Shift solenoid valve S2 circuit* | ||
| ECM | ||
| No down-shift (5th -> 4th) | Shift solenoid valve S4 circuit* | |
| Shift solenoid valve SR circuit* | ||
| Shift solenoid valve SL1 circuit* | ||
| Shift solenoid valve SL2 circuit* | ||
| ECM | ||
| No down-shift (4th -> 3rd) | Shift solenoid valve S3 circuit* | |
| ECM | ||
| No down-shift (3rd -> 2nd) | Shift solenoid valve S2 circuit* | |
| ECM | ||
| No down-shift (2nd -> 1st) | Shift solenoid valve S1 circuit* | |
| ECM | ||
| No lock-up or no lock-up off | Shift solenoid valve SLU circuit* | |
| Stop light switch circuit* | ||
| ECM | ||
| No lock-up | No. 1 ATF temperature sensor circuit* | |
| Shift solenoid valve SLU circuit* | ||
| Engine coolant temperature sensor circuit* | ||
| Stop light switch circuit* | ||
| Speed sensor NT circuit* | ||
| ECM | ||
| No lock-up off | Shift solenoid valve SLU circuit* | |
| ECM | ||
| Shift point too high or too low | Shift solenoid valve SLT circuit* | |
| Speed sensor NT circuit* | ||
| Speed sensor SP2 circuit* | ||
| Throttle position sensor circuit* | ||
| Pattern select switch power mode circuit (w/o Active Height Control Suspension) | ||
| Pattern select switch sport mode circuit (w/ Active Height Control Suspension) | ||
| No. 1 ATF temperature sensor circuit* | ||
| ECM | ||
| Up-shift to 4th from 3rd while engine is cold | Engine coolant temperature sensor circuit* | |
| ECM | ||
| Up-shift to 5th from 4th while engine is cold | Engine coolant temperature sensor circuit* | |
| ECM | ||
| No gear change by shifting into "+" or "-" while shift lever in S | Transmission control switch circuit | |
| ECM | ||
| Harsh engagement (N -> D) | Shift solenoid valve SLT circuit* | |
| Speed sensor NT circuit* | ||
| ECM | ||
| Harsh engagement (lock-up) | Speed sensor NT circuit* | |
| Speed sensor SP2 circuit* | ||
| Shift solenoid valve SLU circuit* | ||
| ECM | ||
| Harsh engagement (any gear position) | Throttle position sensor circuit* | |
| Shift solenoid valve SL1 circuit* | ||
| Shift solenoid valve SL2 circuit* | ||
| Shift solenoid valve SLU circuit* | ||
| Shift solenoid valve SLT circuit* | ||
| Speed sensor NT circuit* | ||
| ECM | ||
| Poor acceleration | No. 2 ATF temperature sensor circuit* | |
| Shift solenoid valve SLT circuit* | ||
| Pattern select switch 2nd start mode circuit | ||
| ECM | ||
| No engine brake | ECM | |
| No kick-down | ECM | |
| Engine stalls when starting off or stopping | Shift solenoid valve SLU circuit* | |
| ECM | ||
| ECT 2ND does not operate | Shift solenoid valve SLT circuit* | |
| Pattern select switch 2nd start mode circuit | ||
| ECM | ||
| ATF temperature warning light remains on, lock-up at 3rd gear and/or shift point too high | No. 2 ATF temperature sensor circuit* | |
| Engine coolant temperature sensor circuit* | ||
| ECM | ||
| Malfunction in shifting | Park/neutral position switch circuit* | |
| Transmission control switch circuit | ||
| ECM | ||
| Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th) | Shift solenoid valve SR circuit* | |
| Slip or shudder (5th -> 6th -> and 6th -> 5th) | Shift solenoid valve SR circuit* |
| Symptom | Suspected Area | See page |
|---|---|---|
| Vehicle does not move when shift lever is in any forward position and reverse position | Floor shift gear shifting rod sub-assembly (w/ Entry and Start System) | |
| Floor shift gear shifting rod sub-assembly (w/o Entry and Start System) | ||
| Manual valve | ||
| Parking lock pawl | ||
| Rear planetary gear unit | ||
| Torque converter assembly | ||
| Vehicle does not move with shift lever in R | Valve body assembly | |
| B4 brake | ||
| No up-shift (1st -> 2nd) | Valve body assembly | |
| B3 brake | ||
| F1 one-way clutch | ||
| F2 one-way clutch | ||
| No up-shift (2nd -> 3rd) | Valve body assembly | |
| C3 clutch | ||
| No up-shift (3rd -> 4th) | Valve body assembly | |
| C2 clutch | ||
| No up-shift (4th -> 5th) | Valve body assembly | |
| B1 brake | ||
| No up-shift (5th -> 6th) | Valve body assembly | |
| B2 brake | ||
| No down-shift (6th -> 5th) | Valve body assembly | |
| No down-shift (5th -> 4th) | Valve body assembly | |
| No down-shift (4th -> 3rd) | Valve body assembly | |
| No down-shift (3rd -> 2nd) | Valve body assembly | |
| No down-shift (2nd -> 1st) | Valve body assembly | |
| No lock-up or no lock-up off | Valve body assembly | |
| Torque converter assembly | ||
| Harsh engagement (N -> D) | Valve body assembly | |
| C1 accumulator | ||
| C1 clutch | ||
| F3 one-way clutch | ||
| F4 one-way clutch | ||
| Harsh engagement (lock-up) | Valve body assembly | |
| Torque converter assembly | ||
| Harsh engagement (N -> R) | Valve body assembly | |
| C3 accumulator | ||
| C3 clutch | ||
| B4 brake | ||
| F1 one-way clutch | ||
| Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th -> 6th) | Valve body assembly | |
| Harsh engagement (1st -> 2nd) | Valve body assembly | |
| B3 accumulator | ||
| B3 brake | ||
| F1 one-way clutch | ||
| F2 one-way clutch | ||
| Harsh engagement (2nd -> 3rd) | Valve body assembly | |
| C3 accumulator | ||
| C3 clutch | ||
| Harsh engagement (3rd -> 4th) | Valve body assembly | |
| C2 accumulator | ||
| C2 clutch | ||
| Harsh engagement (4th -> 5th) | Valve body assembly | |
| B1 accumulator | ||
| B1 brake | ||
| Harsh engagement (5th -> 6th) | Valve body assembly | |
| B2 accumulator | ||
| B2 brake | ||
| Harsh engagement (6th -> 5th) | Valve body assembly | |
| C3 accumulator | ||
| C3 clutch | ||
| Slip or shudder (forward and reverse, after warm-up) | Floor shift gear shifting rod sub-assembly (w/ Entry and Start System) | |
| Floor shift gear shifting rod sub-assembly (w/o Entry and Start System) | ||
| Valve body assembly | ||
| Oil strainer | ||
| F1 one-way clutch | ||
| C3 clutch | ||
| Torque converter assembly | ||
| Slip or shudder (particular position, just after engine starts) | Torque converter assembly | |
| Slip or shudder (shift lever in R) | B4 brake | |
| F1 one-way clutch | ||
| C3 clutch | ||
| Slip or shudder (1st) | C1 clutch | |
| F3 one-way clutch | ||
| F4 one-way clutch | ||
| Slip or shudder (2nd) | C1 clutch | |
| B3 brake | ||
| F1 one-way clutch | ||
| F2 one-way clutch | ||
| F4 one-way clutch | ||
| Slip or shudder (3rd) | C1 clutch | |
| C3 clutch | ||
| F1 one-way clutch | ||
| F4 one-way clutch | ||
| Slip or shudder (4th) | C1 clutch | |
| C2 clutch | ||
| F4 one-way clutch | ||
| Slip or shudder (5th) | C2 clutch | |
| C3 clutch | ||
| B1 brake | ||
| Slip or shudder (6th) | C2 clutch | |
| B2 brake | ||
| No engine braking (1st to 4th, shift lever in S) | C4 clutch | |
| No engine braking (1st: shift lever in 1) | Valve body assembly | |
| B4 brake | ||
| No engine braking (2nd: shift lever in 2) | Valve body assembly | |
| B2 brake | ||
| No engine braking (3rd: shift lever in 3) | Valve body assembly | |
| B1 brake | ||
| No engine braking (4th: shift lever in 4) | Valve body assembly | |
| No kick-down | Valve body assembly | |
| Shift point too high or too low | Valve body assembly | |
| Poor acceleration (all positions) | Valve body assembly | |
| Torque converter assembly | ||
| Poor acceleration (6th) | B2 brake | |
| C2 clutch | ||
| Front planetary gear unit | ||
| Engine stalls when starting off or stopping | Valve body assembly | |
| Torque converter assembly |