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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 following charts and proceed to the link given for troubleshooting.

The Matrix Chart is divided into 2 chapters.

  1. Chapter 1: Electronic Circuit Matrix Chart 
    • 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 ECM.

    HINT:

    When the circuit on which mark *1 is attached is a malfunction, DTC could be output (See DIAGNOSTIC TROUBLE CODE CHART ).

    SYMPTOM CHART

    Symptom Suspected Area Procedure
    No up-shift (1st --> 2nd) 1. SHIFT SOLENOID VALVE (S1) CIRCUIT  *1  
    2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No up-shift (2nd --> 3rd) 1. SHIFT SOLENOID VALVE (S2) CIRCUIT  *1  
    2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No up-shift (3rd --> 4th) 1. SHIFT SOLENOID VALVE (S3) CIRCUIT  *1  
    2. Engine coolant temp. sensor circuit *1 DIAGNOSTIC TROUBLE CODE TABLE
    3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No up-shift (4th --> 5th) 1. Shift solenoid valve (S4) circuit *1 DTC P0756 SHIFT SOLENOID "B" PERFORMANCE (SHIFT SOLENOID VALVE S2) 
    2. SHIFT SOLENOID VALVE (SR) CIRCUIT  *1  
    3. SHIFT SOLENOID VALVE (SL1) CIRCUIT  *1  
    4. SHIFT SOLENOID VALVE (SL2) CIRCUIT  *1  
    5. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No up-shift (5th --> 6th) 1. PARK/NEUTRAL POSITION SWITCH CIRCUIT  *1  
    2. Engine coolant temp. sensor circuit *1 DIAGNOSTIC TROUBLE CODE TABLE
    3. SHIFT SOLENOID VALVE (S2) CIRCUIT  *1  
    4. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No down-shift (6th --> 5th) 1. PARK/NEUTRAL POSITION SWITCH CIRCUIT  *1  
    2. SHIFT SOLENOID VALVE (S2) CIRCUIT  *1  
    3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No down-shift (5th --> 4th) 1. SHIFT SOLENOID VALVE (S4) CIRCUIT  *1  
    2. SHIFT SOLENOID VALVE (SR) CIRCUIT  *1  
    3. SHIFT SOLENOID VALVE (SL1) CIRCUIT  *1  
    4. SHIFT SOLENOID VALVE (SL2) CIRCUIT  *1  
    5. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No down-shift (4th --> 3rd) 1. SHIFT SOLENOID VALVE (S3) CIRCUIT  *1  
    2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No down-shift (3rd --> 2nd) 1. SHIFT SOLENOID VALVE (S2) CIRCUIT  *1  
    2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No down-shift (2nd --> 1st) 1. SHIFT SOLENOID VALVE (S1) CIRCUIT  *1  
    2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No lock-up or No lock-up off 1. SHIFT SOLENOID VALVE (SLU) CIRCUIT  *1  
    2. STOP LIGHT SWITCH CIRCUIT  *1  
    3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No lock-up 1. SHIFT SOLENOID VALVE (SLU) CIRCUIT  *1  
    2. Engine coolant temp. sensor circuit *1 DIAGNOSTIC TROUBLE CODE TABLE
    3. STOP LIGHT SWITCH CIRCUIT  *1  
    4. SPEED SENSOR NT CIRCUIT  *1  
    5. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No lock-up off 1. SHIFT SOLENOID VALVE (SLU) CIRCUIT  *1  
    2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    Shift point too high or too low 1. SHIFT SOLENOID VALVE (SLT) CIRCUIT  *1  
    2. SPEED SENSOR NT CIRCUIT  *1  
    3. Speed sensor SP2 circuit *1 DTC P0500, P0503: VEHICLE SPEED SENSOR "A", VEHICLE SPEED SENSOR "A" INTERMITTENT/ERRATIC/HIGH
    4. Throttle position sensor circuit *1 DIAGNOSTIC TROUBLE CODE TABLE
    5. PATTERN SELECT (PWR) SWITCH CIRCUIT   
    6. ATF TEMPERATURE SENSOR CIRCUIT  *1  
    7. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    Up-shift to 4th from 3rd while engine is cold 1. Engine coolant temp. sensor circuit *1 DIAGNOSTIC TROUBLE CODE TABLE
    2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    Up-shift to 5th from 4th while engine is cold 1. Engine coolant temp. sensor circuit *1 DIAGNOSTIC TROUBLE CODE TABLE
    2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No gear change by shifting into "+" or "-" while the shift lever is in the S position 1. TRANSMISSION CONTROL SWITCH CIRCUIT   
    2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    Harsh engagement (N --> D) 1. SHIFT SOLENOID VALVE (SLT) CIRCUIT  *1  
    2. SPEED SENSOR NT CIRCUIT  *1  
    3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    Harsh engagement (Lock-up) 1. SPEED SENSOR NT CIRCUIT  *1  
    2. Speed sensor SP2 circuit *1 DTC P0500, P0503: VEHICLE SPEED SENSOR "A", VEHICLE SPEED SENSOR "A" INTERMITTENT/ERRATIC/HIGH
    3. SHIFT SOLENOID VALVE (SLU) CIRCUIT  *1  
    4. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    Harsh engagement (Any driving position) 1. Throttle position sensor circuit *1 DIAGNOSTIC TROUBLE CODE TABLE
    2. SHIFT SOLENOID VALVE (SL1) CIRCUIT  *1  
    3. SHIFT SOLENOID VALVE (SL2) CIRCUIT  *1  
    4. SHIFT SOLENOID VALVE (SLU) CIRCUIT  *1  
    5. SHIFT SOLENOID VALVE (SLT) CIRCUIT  *1  
    6. SPEED SENSOR NT CIRCUIT  *1  
    7. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    Poor acceleration 1. SHIFT SOLENOID VALVE (SLT) CIRCUIT  *1  
    2. Pattern select (SNOW) switch circuit INSPECTION PROCEDURE 
    3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No engine braking ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    No kick-down ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    Engine stalls when starting off or stopping 1. SHIFT SOLENOID VALVE (SLU) CIRCUIT  *1  
    2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    ECT SNOW does not operate 1. SHIFT SOLENOID VALVE (SLT) CIRCUIT   
    2. Pattern select (SNOW) switch circuit INSPECTION PROCEDURE 
    3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    Malfunction in shifting 1. PARK/NEUTRAL POSITION SWITCH CIRCUIT  *1  
    2. TRANSMISSION CONTROL SWITCH CIRCUIT   
    3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
    • Harsh engagement (1st --> 2nd --> 3rd --> 4th --> 5th)
    • Slip or shudder (5th --> 6th and 6th --> 5th)
    		 SHIFT SOLENOID VALVE (SR) CIRCUIT  *1  
  2. Chapter 2: On-Vehicle Repair and Off-Vehicle Repair 

    (*: A761E AUTOMATIC TRANSMISSION Repair Manual Pub. No. RM1050U) 

    SYMPTOM CHART

    Symptom Suspected Area Procedure
    Vehicle does not move in any forward position and reverse positions 1. Transmission control rod OVERHAUL
    2. Manual valve *
    3. Parking lock pawl *
    4. Rear planetary gear unit *
    5. Torque converter clutch TORQUE CONVERTER CLUTCH AND DRIVE PLATE
    Vehicle does not move in R position 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Brake No. 4 (B4) *
    No up-shift (1st --> 2nd) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Brake No.3 (B3) *
    3. One-way clutch No.1 (F1) *
    4. One-way clutch No.2 (F2) *
    No up-shift (2nd --> 3rd) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Clutch No.3 (C3) *
    No up-shift (3rd --> 4th) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Clutch No.2 (C2) *
    No up-shift (4th --> 5th) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Brake No.1 (B1) *
    No up-shift (5th --> 6th) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Brake No.2 (B2) *
    No down-shift (6th --> 5th) Valve body assy TRANSMISSION VALVE BODY ASSY
    No down-shift (5th --> 4th) Valve body assy TRANSMISSION VALVE BODY ASSY
    No down-shift (4th --> 3rd) Valve body assy TRANSMISSION VALVE BODY ASSY
    No down-shift (3rd --> 2nd) Valve body assy TRANSMISSION VALVE BODY ASSY
    No down-shift (2nd --> 1st) Valve body assy TRANSMISSION VALVE BODY ASSY
    No lock-up or No lock-up off 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Torque converter clutch TRANSMISSION VALVE BODY ASSY
    Harsh engagement (N --> D) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. C1 accumulator *
    3. Clutch No.1 (C1) *
    4. One-way clutch No.3 (F3) *
    5. One-way clutch No.4 (F4) *
    Harsh engagement (Lock-up) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Torque converter clutch TORQUE CONVERTER CLUTCH AND DRIVE PLATE
    Harsh engagement (N --> R) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. C3 accumulator *
    3. Clutch No.3 (C3) *
    4. Brake No.4 (B4) *
    5. One-way clutch No.1 (F1) *
    Harsh engagement (1st --> 2nd --> 3rd --> 4th --> 5th --> 6th) Valve body assy TRANSMISSION VALVE BODY ASSY
    Harsh engagement (1st --> 2nd) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. B3 accumulator *
    3. Brake No.3 (B3) *
    4. One-way clutch No.1 (F1) *
    5. One-way clutch No.2 (F2) *
    Harsh engagement (2nd --> 3rd) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. C3 accumulator *
    3. Clutch No.3 (C3) *
    Harsh engagement (3rd --> 4th) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. C2 accumulator *
    3. Clutch No.2 (C2 ) *
    Harsh engagement (4th --> 5th) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. B1 accumulator *
    3. Brake No.1 (B1) *
    Harsh engagement (5th --> 6th) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. B2 accumulator *
    3. Brake No.2 (B2) *
    Harsh engagement (6th --> 5th) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. C3 accumulator *
    3. Clutch No.3 (C3) *
    Slip or shudder (Forward and reverse: After warm-up) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Oil strainer TRANSMISSION VALVE BODY ASSY
    3. One-way clutch No.1 (F1) *
    4. Clutch No.3 (C3) *
    5. 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) 1. Brake No.4 (B4) *
    2. One-way clutch No.1 (F1) *
    3. Clutch No.3 (C3) *
    Slip or shudder (1st) 1. Clutch No.1 (C1) *
    2. One-way clutch No.3 (F3) *
    3. One-way clutch No.4 (F4) *
    Slip or shudder (2nd) 1. Clutch No.1 (C1) *
    2. Brake No.3 (B3) *
    3. One-way clutch No.1 (F1) *
    4. One-way clutch No.2 (F2) *
    5. One-way clutch No.4 (F4) *
    Slip or shudder (3rd) 1. Clutch No.1 (C1) *
    2. Clutch No.3 (C3) *
    3. One-way clutch No.1 (F1) *
    4. One-way clutch No.4 (F4) *
    Slip or shudder (4th) 1. Clutch No.1 (C1) *
    2. Clutch No.2 (C2) *
    3. One-way clutch No.4 (F4) *
    Slip or shudder (5th) 1. Clutch No.2 (C2) *
    2. Clutch No.3 (C3) *
    3. Brake No.1 (B1) *
    Slip or shudder (6th) 1. Clutch No.2 (C2) *
    2. Brake No.2 (B2) *
    No engine braking (1st - 4th: S position) Clutch No.4 (C4) *
    No engine braking (1st: 1 position) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Brake No.4 (B4) *
    No engine braking (2nd: 2 position) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Brake No.2 (B2) *
    No engine braking (3rd: 3 position) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Brake No.1 (B1) *
    No engine braking (4th: 4 position) Valve body assy TRANSMISSION VALVE BODY ASSY
    No kick-down Valve body assy TRANSMISSION VALVE BODY ASSY
    Shift point too high or too low Valve body assy TRANSMISSION VALVE BODY ASSY
    Poor acceleration (All positions) 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Torque converter clutch TORQUE CONVERTER CLUTCH AND DRIVE PLATE
    Poor acceleration (6th) 1. Brake No.2 (B2) *
    2. Clutch No.2 (C2) *
    3. Front planetary gear unit *
    Engine stalls when starting off or stopping 1. Valve body assy TRANSMISSION VALVE BODY ASSY
    2. Torque converter clutch TORQUE CONVERTER CLUTCH AND DRIVE PLATE
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