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Problem Symptoms Table

WARNING: This page is about a different variant/trim than selected.

HINT:

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, 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.

Chapter 1: Electronic Circuit Matrix Chart 

PROBLEM SYMPTOMS CHART

Symptom Suspected Area See page
No down-shift (A particular gear, from 1st to 4th gear, is not down-shifted) ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No down-shift (5th -> 4th) Park/neutral position switch circuit*1 DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT) 
Shift solenoid valve (S4) circuit*1 DTC P0982 SHIFT SOLENOID "D" CONTROL CIRCUIT LOW (SHIFT SOLENOID VALVE S4); DTC P0983 SHIFT SOLENOID "D" CONTROL CIRCUIT HIGH (SHIFT SOLENOID VALVE S4) 
ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No up-shift (A particular gear, from 1st to 4th gear, is not up-shifted) ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No up-shift (4th -> 5th) ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No lock-up Engine coolant temp, sensor circuit *1 (for 2AZ-FE) DIAGNOSTIC TROUBLE CODE CHART
ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No lock-up off ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Shift point too high or too low Throttle position sensor circuit *1 (for 2AZ-FE) DIAGNOSTIC TROUBLE CODE CHART
ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Up-shift to 5th from 4th while engine is cold Engine coolant temp, sensor circuit *1 (for 2AZ-FE) DIAGNOSTIC TROUBLE CODE CHART
ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No gear change by shifting into "+" or "-" while the shifting lever is in the S position Transmission control switch circuit Transmission Control Switch Circuit 
ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Harsh engagement (N -> D) Shift solenoid valve (SL1) circuit *1 DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL (SHIFT SOLENOID VALVE SL1) 
ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Harsh engagement (Lock-up) ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Harsh engagement (Any driving position) ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Poor acceleration ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No kick-down ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Engine stalls when starting off or stopping ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Malfunction in shifting Transmission control switch circuit Transmission Control Switch Circuit 
ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Chapter 2: On-Vehicle Repair and Off-Vehicle Repair 

PROBLEM SYMPTOMS CHART

Symptom Suspected Area See page
Vehicle does not move in any forward position and in reverse positions Valve body assembly REMOVAL 
U/D brake (B3) AUTOMATIC TRANSAXLE UNIT 
Torque converter clutch AUTOMATIC TRANSAXLE UNIT 
Vehicle does not move in R position Valve body assembly REMOVAL 
Reverse clutch (C2) AUTOMATIC TRANSAXLE UNIT 
1st and reverse brake (B2) AUTOMATIC TRANSAXLE UNIT 
No up-shift (1st -> 2nd) Valve body assembly REMOVAL 
2nd and O/D brake (B1) AUTOMATIC TRANSAXLE UNIT 
No up-shift (2nd -> 3rd) Valve body assembly REMOVAL 
Direct and O/D clutch (CO) AUTOMATIC TRANSAXLE UNIT 
No up-shift (3rd -> 4th) Valve body assembly REMOVAL 
2nd and O/D brake (B1) AUTOMATIC TRANSAXLE UNIT 
No up-shift (4th -> 5th) Shift solenoid valve (S4) DISASSEMBLY 
Valve body assembly REMOVAL 
U/D clutch (C3) AUTOMATIC TRANSAXLE UNIT 
No down-shift (5th -> 4th) Shift solenoid valve (S4) DISASSEMBLY 
Valve body assembly REMOVAL 
No down-shift (4th -> 3rd) Valve body assembly REMOVAL 
No down-shift (3rd -> 2nd) Valve body assembly REMOVAL 
No down-shift (2nd -> 1st) Valve body assembly REMOVAL 
No lock-up or No lock-up off Shift solenoid valve (DSL) DISASSEMBLY 
Valve body assembly REMOVAL 
Torque converter clutch TORQUE CONVERTER CLUTCH AND DRIVE PLATE 
Harsh engagement (N -> D) Shift solenoid valve (SL1) DISASSEMBLY 
Valve body assembly REMOVAL 
C1 accumulator AUTOMATIC TRANSAXLE UNIT 
Forward clutch (C1) AUTOMATIC TRANSAXLE UNIT 
One-way clutch No. 1 (F1) AUTOMATIC TRANSAXLE UNIT 
U/D one-way clutch (F2) AUTOMATIC TRANSAXLE UNIT 
Harsh engagement (Lock-up) Shift solenoid valve (SL2) DISASSEMBLY 
Valve body assembly REMOVAL 
Torque converter clutch TORQUE CONVERTER CLUTCH AND DRIVE PLATE 
Harsh engagement (N -> R) Valve body assembly REMOVAL 
C2 accumulator AUTOMATIC TRANSAXLE UNIT 
Reverse clutch (C2) AUTOMATIC TRANSAXLE UNIT 
1st and reverse brake (B2) AUTOMATIC TRANSAXLE UNIT 
Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th) Shift solenoid valve (SLT) DISASSEMBLY 
Valve body assembly REMOVAL 
Harsh engagement (1st -> 2nd) Valve body assembly REMOVAL 
2nd and O/D brake (B1) AUTOMATIC TRANSAXLE UNIT 
Harsh engagement (2nd -> 3rd) Valve body assembly REMOVAL 
CO accumulator AUTOMATIC TRANSAXLE UNIT 
Direct and O/D clutch (CO) AUTOMATIC TRANSAXLE UNIT 
Harsh engagement (3rd -> 4th) Valve body assembly REMOVAL 
2nd and O/D brake (B1) AUTOMATIC TRANSAXLE UNIT 
Harsh engagement (4th -> 5th) Valve body assembly REMOVAL 
C3 accumulator AUTOMATIC TRANSAXLE UNIT 
U/D clutch (C3) AUTOMATIC TRANSAXLE UNIT 
Harsh engagement (5th -> 4th) Valve body assembly REMOVAL 
B3 accumulator AUTOMATIC TRANSAXLE UNIT 
Slip or shudder (Forward and reverse: After warm-up) Valve body assembly REMOVAL 
Oil strainer REMOVAL 
Direct and O/D clutch (CO) AUTOMATIC TRANSAXLE UNIT 
Forward clutch (C1) AUTOMATIC TRANSAXLE UNIT 
U/D clutch (C3) AUTOMATIC TRANSAXLE UNIT 
2nd and brake (B1) AUTOMATIC TRANSAXLE UNIT 
U/D brake (B3) AUTOMATIC TRANSAXLE UNIT 
One-way clutch No. 1 (F1) AUTOMATIC TRANSAXLE UNIT 
U/D one-way clutch (F2) AUTOMATIC TRANSAXLE UNIT 
Torque converter clutch TORQUE CONVERTER CLUTCH AND DRIVE PLATE 
Slip or shudder (Particular position: Just after engine starts) Torque converter clutch TORQUE CONVERTER CLUTCH AND DRIVE PLATE 
Slip or shudder (R position) Reverse clutch (C2) AUTOMATIC TRANSAXLE UNIT 
1st and reverse brake (B2) AUTOMATIC TRANSAXLE UNIT 
Slip or shudder (1st) Forward clutch (C1) AUTOMATIC TRANSAXLE UNIT 
One-way clutch No. 1 (F1) AUTOMATIC TRANSAXLE UNIT 
U/D one-way clutch (F2) AUTOMATIC TRANSAXLE UNIT 
Slip or shudder (2nd) 2nd and O/D brake (B1) AUTOMATIC TRANSAXLE UNIT 
Slip or shudder (3rd) Direct and O/D clutch (CO) AUTOMATIC TRANSAXLE UNIT 
Slip or shudder (4th) 2nd and O/D brake (B1) AUTOMATIC TRANSAXLE UNIT 
Slip or shudder (5th) U/D clutch (C3) AUTOMATIC TRANSAXLE UNIT 
Shift position too high or too low Shift solenoid valve (SLT) DISASSEMBLY 
No engine braking (1st +- 4th: D position) U/D brake (B3) AUTOMATIC TRANSAXLE UNIT 
No engine braking (1st: L (1) position) Valve body assembly REMOVAL 
1st and reverse brake (B2) AUTOMATIC TRANSAXLE UNIT 
No engine braking (2nd: 2 position) Valve body assembly REMOVAL 
2nd and O/D brake (B1) AUTOMATIC TRANSAXLE UNIT 
No engine braking (3rd: 3 position) U/D brake (B3) AUTOMATIC TRANSAXLE UNIT 
No kick-down Valve body assembly REMOVAL 
Poor acceleration (All positions) Shift solenoid valve (SLT) DISASSEMBLY 
Torque converter clutch TORQUE CONVERTER CLUTCH AND DRIVE PLATE 
Poor acceleration (5th) U/D clutch (C3) AUTOMATIC TRANSAXLE UNIT 
U/D planetary gear unit AUTOMATIC TRANSAXLE UNIT 
Engine stalls when starting off or stopping Shift solenoid valve (DSL) DISASSEMBLY 
Torque converter clutch TORQUE CONVERTER CLUTCH AND DRIVE PLATE