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 link given for troubleshooting.

The Matrix Chart is divided into 2 chapters.

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:

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

PROBLEM SYMPTOMS TABLE - CHAPTER 1

Symptom	Suspected Area	Proceed To
No down-shift (A particular gear, from 1st to 4th gear, is not down-shifted)	1. Shift solenoid valve (SL1) circuit *1	DTC P0746 PRESSURE CONTROL SOLENOID "A" PERFORMANCE (SHIFT SOLENOID VALVE SL1)
	2. Shift solenoid valve (SL2) circuit *1	DTC P0776 PRESSURE CONTROL SOLENOID "B" PERFORMANCE (SHIFT SOLENOID VALVE SL2)
	3. Shift solenoid valve (SL3) circuit *1	DTC P0796 PRESSURE CONTROL SOLENOID "C" PERFORMANCE (SHIFT SOLENOID VALVE SL3)
	4. Shift solenoid valve (SR) circuit *1	DTC P0771 SHIFT SOLENOID "E" PERFORMANCE (SHIFT SOLENOID VALVE SR)
	5. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No down-shift (5th --> 4th)	1. Transmission control switch (O/D OFF) circuit	O/D MAIN SWITCH CIRCUIT
	2. Shift solenoid valve (S4) circuit *1	DTC P0766 SHIFT SOLENOID "D" PERFORMANCE (SHIFT SOLENOID VALVE S4)
	3. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No up-shift (A particular gear, from 1st to 4th gear, is not up-shifted)	1. Shift solenoid valve (SL1) circuit *1	DTC P0746 PRESSURE CONTROL SOLENOID "A" PERFORMANCE (SHIFT SOLENOID VALVE SL1)
	2. Shift solenoid valve (SL2) circuit *1	DTC P0776 PRESSURE CONTROL SOLENOID "B" PERFORMANCE (SHIFT SOLENOID VALVE SL2)
	3. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No up-shift (4th --> 5th)	1. Transmission control switch (O/D OFF) circuit	O/D MAIN SWITCH CIRCUIT
	2. Shift solenoid valve (S4) circuit *1	DTC P0766 SHIFT SOLENOID "D" PERFORMANCE (SHIFT SOLENOID VALVE S4)
	3. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No lock-up	1. Shift solenoid valve (DSL) circuit *1	DTC P0741 TORQUE CONVERTER CLUTCH SOLENOID PERFORMANCE (SHIFT SOLENOID VALVE DSL)
	2. Stop light switch circuit *1	DTC P0724 BRAKE SWITCH "B" CIRCUIT HIGH
	3. Engine coolant temp. sensor circuit *1	DIAGNOSTIC TROUBLE CODE CHART
		DIAGNOSTIC TROUBLE CODE CHART
	4. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No lock-up off	1. Shift solenoid valve (DSL) circuit *1	DTC P0741 TORQUE CONVERTER CLUTCH SOLENOID PERFORMANCE (SHIFT SOLENOID VALVE DSL)
No lock-up off	2. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Shift point too high or too low	1. Throttle position sensor circuit *1	DIAGNOSTIC TROUBLE CODE CHART
		DIAGNOSTIC TROUBLE CODE CHART
	2. Shift solenoid valve (SLT) circuit *1	DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID SLT)
	3. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Up-shift to 5th from 4th while shift lever is D (O/D OFF) position	1. Transmission control switch (O/D OFF) circuit	O/D MAIN SWITCH CIRCUIT
	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 CHART
		DIAGNOSTIC TROUBLE CODE CHART
	2. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Up-shift to 2nd from 1st while shift lever is L position	1. Transmission control switch (2 --> L position) circuit *1	DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)
Up-shift to 2nd from 1st while shift lever is L position	2. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Harsh engagement (N --> D)	1. Shift solenoid valve (SL1) circuit *1	DTC P0746 PRESSURE CONTROL SOLENOID "A" PERFORMANCE (SHIFT SOLENOID VALVE SL1)
Harsh engagement (N --> D)	2. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Harsh engagement (Lock-up)	1. Shift solenoid valve (SL2) circuit *1	DTC P0776 PRESSURE CONTROL SOLENOID "B" PERFORMANCE (SHIFT SOLENOID VALVE SL2)
Harsh engagement (Lock-up)	2. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Harsh engagement (Any driving position)	1. Shift solenoid valve (SLT) circuit *1	DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID SLT)
Harsh engagement (Any driving position)	2. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Poor acceleration	1. Shift solenoid valve (SLT) circuit *1	DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID SLT)
Poor acceleration	2. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No kick-down	ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Engine stalls when starting off or stopping	1. Shift solenoid valve (DSL) circuit *1	DTC P0741 TORQUE CONVERTER CLUTCH SOLENOID PERFORMANCE (SHIFT SOLENOID VALVE DSL)
Engine stalls when starting off or stopping	2. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Malfunction in shifting	1. Park/neutral position switch circuit *1	DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)
	2. Transmission control switch (O/D OFF) circuit	O/D MAIN SWITCH CIRCUIT
	3. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Chapter 2: On-Vehicle Repair and Off-Vehicle Repair
( x : Go to U250E OVERHAUL article )

PROBLEM SYMPTOMS TABLE - CHAPTER 2

Symptom	Suspected Area	Proceed To
Vehicle does not move in forward position and in reverse position	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
	2. U/D brake (B₃ )	x
	3. Torque converter clutch	TORQUE CONVERTER CLUTCH AND DRIVE PLATE (ATM)
Vehicle does not move in R position	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
	2. Reverse clutch (C₂ )	x
	3. 1st & reverse brake (B₂ )	x
No up-shift (1st --> 2nd)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
No up-shift (1st --> 2nd)	2. 2nd & O/D brake (B₁ )	x
No up-shift (2nd --> 3rd)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
No up-shift (2nd --> 3rd)	2. Direct and O/D clutch (C₀ )	x
No up-shift (3rd --> 4th)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
No up-shift (3rd --> 4th)	2. 2nd & O/D brake (B₁ )	x
No up-shift (4th --> 5th)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
No up-shift (4th --> 5th)	2. U/D clutch (C₃ )	x
No down-shift (5th --> 4th)	Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
No down-shift (4th --> 3rd)	Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
No down-shift (3rd --> 2nd)	Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
No down-shift (2nd --> 1st)	Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
No lock-up or No lock-up off	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
No lock-up or No lock-up off	2. Torque converter clutch	TORQUE CONVERTER CLUTCH AND DRIVE PLATE (ATM)
Harsh engagement (N --> D)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
	2. C₁ accumulator	x
	3. Forward clutch (C₁ )	x
	4. One-way clutch No. 1 (F₁ )	x
	5. U/D one-way clutch (F₂ )	x
Harsh engagement (Lock-up)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
Harsh engagement (Lock-up)	2. Torque converter clutch	TORQUE CONVERTER CLUTCH AND DRIVE PLATE (ATM)
Harsh engagement (N --> R)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
	2. C₂ accumulator	x
	3. Reverse clutch (C₂ )	x
	4. 1st & reverse brake (B₂ )	x
Harsh engagement (1st --> 2nd --> 3rd --> 4th --> 5th)	Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
Harsh engagement (1st --> 2nd)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
Harsh engagement (1st --> 2nd)	2. 2nd & O/D brake (B₁ )	x
Harsh engagement (2nd --> 3rd)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
	2. C₀ accumulator	x
	3. Direct and O/D clutch (C₀ )	x
Harsh engagement (3rd --> 4th)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
Harsh engagement (3rd --> 4th)	2. 2nd & O/D brake (B₁ )	x
Harsh engagement (4th --> 5th)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
	2. C3 accumulator	x
	3. U/D clutch (C₃ )	x
Harsh engagement (5th --> 4th)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
Harsh engagement (5th --> 4th)	2. B₃ accumulator	x
Slip or shudder (Forward and reverse: After warm-up)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
	2. Oil strainer	TRANSMISSION VALVE BODY ASSY (U250E)
	3. Direct and O/D clutch (C₀ )	x
	4. Forward clutch (C₁ )	x
	5. U/D clutch (C₃ )	x
	6. 2nd & O/D brake (B₁ )	x
	7. U/D brake (B₃ )	x
	8. One-way clutch No. 1 (F₁ )	x
	9. U/D one-way clutch (F₂ )	x
	10. Torque converter clutch	TORQUE CONVERTER CLUTCH AND DRIVE PLATE (ATM)
Slip or shudder (Particular position: Just after engine starts)	Torque converter clutch	TORQUE CONVERTER CLUTCH AND DRIVE PLATE (ATM)
Slip or shudder (R position)	1. Reverse clutch (C₂ )	x
Slip or shudder (R position)	2. 1st & reverse brake (B₂ )	x
Slip or shudder (1st)	1. Forward clutch (C₁ )	x
	2. One-way clutch No. 1 (F₁ )	x
	3. U/D one-way clutch (F₂ )
Slip or shudder (2nd)	2nd & O/D brake (B₁ )	x
Slip or shudder (3rd)	Direct and O/D clutch (C₀ )	x
Slip or shudder (4th)	2nd & O/D brake (B₁ )	x
Slip or shudder (5th)	U/D clutch (C₃ )	x
No engine braking (1st - 4th: D position)	U/D brake (B₃ )	x
No engine braking (1st: L (1) position)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
No engine braking (1st: L (1) position)	2. 1st & reverse brake (B₂ )	x
No engine braking (2nd: 2 position)	1. Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)
No engine braking (2nd: 2 position)	2. 2nd & O/D brake (B₁ )	x
No engine braking (3rd: 3 position)	U/D brake (B₃ )	x
Poor acceleration (All positions)	Torque converter clutch	TORQUE CONVERTER CLUTCH AND DRIVE PLATE (ATM)
Poor acceleration (5th)	1. U/D clutch (C₃ )	x
Poor acceleration (5th)	2. U/D planetary gear unit	x
Engine stalls when starting off or stopping	Torque converter clutch	TORQUE CONVERTER CLUTCH AND DRIVE PLATE (ATM)
No kick-down	Valve body assy	TRANSMISSION VALVE BODY ASSY (U250E)