Drivetrain. Corolla. Zre142 Aze141
U250E Automatic Transmission Transaxle. Corolla. Zre142 Aze141
Automatic Transaxle System -- Problem Symptoms Table |
- HINT:
- If a normal code is displayed 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 on the following pages and proceed to the page given for troubleshooting.
- The Matrix Chart is divided into 2 chapters.
- When the circuit on which mark *1 is attached is a malfunction, DTC could be output.
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, inspect the suspected areas in descending order for each symptom. If the trouble still occurs even though there are no abnormalities in the inspections listed for the symptoms, check and replace the ECM.
| Symptom | Suspected Area | See page |
| No down-shift (A particular gear, from 1st to 4th gear, is not down-shifted) | ECM | COROLLA_ZRE142 RM000000UZ30C8X.html |
| Shift solenoid valve (S4) circuit *1 | COROLLA_ZRE142 RM0000015W203PX.html | |
| ECM | COROLLA_ZRE142 RM000000UZ30C8X.html | |
| No up-shift (A particular gear, from 1st to 4th gear, is not up-shifted) | ECM | COROLLA_ZRE142 RM000000UZ30C8X.html |
| No up-shift (4th -> 5th) | ECM | COROLLA_ZRE142 RM000000UZ30C8X.html |
| No lock-up | Engine coolant temp. sensor circuit *1 (for 2AZ-FE) | COROLLA_ZRE142 RM000000PDF0G9X.html |
| ECM | COROLLA_ZRE142 RM000000UZ30C8X.html | |
| No lock-up off | ECM | COROLLA_ZRE142 RM000000UZ30C8X.html |
| Shift point too high or too low | Throttle position sensor circuit *1 (for 2AZ-FE) | COROLLA_ZRE142 RM000000PDF0G9X.html |
| ECM | COROLLA_ZRE142 RM000000UZ30C8X.html | |
| Up-shift to 5th from 4th while engine is cold | Engine coolant temp. sensor circuit *1 (for 2AZ-FE) | COROLLA_ZRE142 RM000000PDF0G9X.html |
| ECM | COROLLA_ZRE142 RM000000UZ30C8X.html | |
| No gear change by shifting into "+" or "-" while the shifting lever is in the S position | Transmission control switch circuit | COROLLA_ZRE142 RM0000015Y102EX.html |
| ECM | COROLLA_ZRE142 RM000000UZ30C8X.html | |
| Harsh engagement (N -> D) | Shift solenoid valve (SL1) circuit *1 | COROLLA_ZRE142 RM0000015W403EX.html |
| ECM | COROLLA_ZRE142 RM000000UZ30C8X.html | |
| Harsh engagement (Lock-up) | ECM | COROLLA_ZRE142 RM000000UZ30C8X.html |
| Harsh engagement (Any driving position) | ECM | COROLLA_ZRE142 RM000000UZ30C8X.html |
| Poor acceleration | ECM | COROLLA_ZRE142 RM000000UZ30C8X.html |
| No kick-down | ECM | COROLLA_ZRE142 RM000000UZ30C8X.html |
| Engine stalls when starting off or stopping | ECM | COROLLA_ZRE142 RM000000UZ30C8X.html |
| Malfunction in shifting | Transmission control switch circuit | COROLLA_ZRE142 RM0000015Y102EX.html |
| ECM | COROLLA_ZRE142 RM000000UZ30C8X.html |
| Symptom | Suspected Area | See page |
| Vehicle does not move in any forward position and in reverse positions | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| U/D brake (B3) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Torque converter assembly | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Vehicle does not move in R position | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| Reverse clutch (C2) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| 1st and reverse brake (B2) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| No up-shift (1st -> 2nd) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| 2nd and O/D brake (B1) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| No up-shift (2nd -> 3rd) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| Direct and O/D clutch (C0) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| No up-shift (3rd -> 4th) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| 2nd and O/D brake (B1) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| No up-shift (4th -> 5th) | Shift solenoid valve (S4) | COROLLA_ZRE142 RM00000109S01BX.html |
| Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html | |
| U/D clutch (C3) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| No down-shift (5th -> 4th) | Shift solenoid valve (S4) | COROLLA_ZRE142 RM00000109S01BX.html |
| Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html | |
| No down-shift (4th -> 3rd) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| No down-shift (3rd -> 2nd) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| No down-shift (2nd -> 1st) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| No lock-up or No lock-up off | Shift solenoid valve (DSL) | COROLLA_ZRE142 RM00000109S01BX.html |
| Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html | |
| Torque converter assembly | COROLLA_ZRE142 RM000000YXK062X.html | |
| Harsh engagement (N -> D) | Shift solenoid valve (SL1) | COROLLA_ZRE142 RM00000109S01BX.html |
| Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html | |
| C1 accumulator | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Forward clutch (C1) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| One-way clutch No. 1 (F1) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| U/D one-way clutch (F2) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Harsh engagement (Lock-up) | Shift solenoid valve (SL2) | COROLLA_ZRE142 RM00000109S01BX.html |
| Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html | |
| Torque converter assembly | COROLLA_ZRE142 RM000000YXK062X.html | |
| Harsh engagement (N -> R) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| C2 accumulator | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Reverse clutch (C2) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| 1st and reverse brake (B2) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th) | Shift solenoid valve (SLT) | COROLLA_ZRE142 RM00000109S01BX.html |
| Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html | |
| Harsh engagement (1st -> 2nd) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| 2nd and O/D brake (B1) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Harsh engagement (2nd -> 3rd) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| C0 accumulator | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Direct and O/D clutch (C0) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Harsh engagement (3rd -> 4th) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| 2nd and O/D brake (B1) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Harsh engagement (4th -> 5th) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| C3 accumulator | COROLLA_ZRE142 RM000003DGB00AX.html | |
| U/D clutch (C3) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Harsh engagement (5th -> 4th) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| B3 accumulator | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Slip or shudder (Forward and reverse: After warm-up) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| Oil strainer | COROLLA_ZRE142 RM000000YWX02NX.html | |
| Direct and O/D clutch (C0) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Forward clutch (C1) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| U/D clutch (C3) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| 2nd and brake (B1) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| U/D brake (B3) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| One-way clutch No. 1 (F1) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| U/D one-way clutch (F2) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Torque converter assembly | COROLLA_ZRE142 RM000000YXK062X.html | |
| Slip or shudder (Particular position: Just after engine starts) | Torque converter assembly | COROLLA_ZRE142 RM000000YXK062X.html |
| Slip or shudder (R position) | Reverse clutch (C2) | COROLLA_ZRE142 RM000003DGB00AX.html |
| 1st and reverse brake (B2) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Slip or shudder (1st) | Forward clutch (C1) | COROLLA_ZRE142 RM000003DGB00AX.html |
| One-way clutch No. 1 (F1) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| U/D one-way clutch (F2) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Slip or shudder (2nd) | 2nd and O/D brake (B1) | COROLLA_ZRE142 RM000003DGB00AX.html |
| Slip or shudder (3rd) | Direct and O/D clutch (C0) | COROLLA_ZRE142 RM000003DGB00AX.html |
| Slip or shudder (4th) | 2nd and O/D brake (B1) | COROLLA_ZRE142 RM000003DGB00AX.html |
| Slip or shudder (5th) | U/D clutch (C3) | COROLLA_ZRE142 RM000003DGB00AX.html |
| Shift position too high or too low | Shift solenoid valve (SLT) | COROLLA_ZRE142 RM00000109S01BX.html |
| No engine braking (1st +- 4th: D position) | U/D brake (B3) | COROLLA_ZRE142 RM000003DGB00AX.html |
| No engine braking (1st: L (1) position) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| 1st and reverse brake (B2) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| No engine braking (2nd: 2 position) | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| 2nd and O/D brake (B1) | COROLLA_ZRE142 RM000003DGB00AX.html | |
| No engine braking (3rd: 3 position) | U/D brake (B3) | COROLLA_ZRE142 RM000003DGB00AX.html |
| No kick-down | Valve body assembly | COROLLA_ZRE142 RM000000YWX02NX.html |
| Poor acceleration (All positions) | Shift solenoid valve (SLT) | COROLLA_ZRE142 RM00000109S01BX.html |
| Torque converter assembly | COROLLA_ZRE142 RM000000YXK062X.html | |
| Poor acceleration (5th) | U/D clutch (C3) | COROLLA_ZRE142 RM000003DGB00AX.html |
| U/D planetary gear unit | COROLLA_ZRE142 RM000003DGB00AX.html | |
| Engine stalls when starting off or stopping | Shift solenoid valve (DSL) | COROLLA_ZRE142 RM00000109S01BX.html |
| Torque converter assembly | COROLLA_ZRE142 RM000000YXK062X.html |