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 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.

Chapter 1: Electronic Circuit Matrix Chart

ELECTRONIC CIRCUIT MATRIX CHART

Symptom	Suspected Area	See
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)	1. Transmission control switch (O/D OFF) circuit	O/D MAIN SWITCH CIRCUIT
	2. 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)
	3. 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)	1. Transmission control switch (O/D OFF) circuit	O/D MAIN SWITCH CIRCUIT
	2. 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)
	3. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No lock up	1. Stop light switch circuit *1	DTC P0724 BRAKE SWITCH "B" CIRCUIT HIGH
	2. Engine coolant temp, sensor circuit *1	DIAGNOSTIC TROUBLE CODE CHART
	3. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No lock up off	ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Shift point too high or too low	1. Throttle position sensor circuit *1	DIAGNOSTIC TROUBLE CODE CHART
Shift point too high or too low	2. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Up-shift to 5th from 4th while shift lever is in D (O/D OFF) position	1. Park/neutral position switch circuit *1	DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)
	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
Up-shift to 5th from 4th while engine is cold	2. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Up-shift to 2nd from 1st while shift lever is in 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 in L position	2. ECM	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Harsh engagement (N -> D)	1. Shift solenoid valve (SL1) circuit *1	DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL (SHIFT SOLENOID VALVE SL1)
Harsh engagement (N -> D)	2. 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	1. Pattern select switch circuit	PATTERN SELECT SWITCH CIRCUIT
	2. Multiplex network body ECU	DTC CHECK / CLEAR
	3. 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
ECT switch does not operate	1. Pattern select switch circuit	PATTERN SELECT SWITCH CIRCUIT
	2. Multiplex network body ECU	DTC CHECK / CLEAR
	3. 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
HINT: 1: When the circuit on which mark 1 is detective, a DTC may be output.

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

SYMPTOM DESCRIPTION

Symptom	Suspected Area	See
Vehicle does not move in any forward position and in reverse positions	1. Valve body assembly	VALVE BODY ASSEMBLY
	2. U/D brake (B3)	AUTOMATIC TRANSAXLE UNIT
	3. Torque converter clutch	TORQUE CONVERTER CLUTCH AND DRIVE PLATE
Vehicle does not move in R position	1. Valve body assembly	VALVE BODY ASSEMBLY
	2. Reverse clutch (C2)	AUTOMATIC TRANSAXLE UNIT
	3. 1st and reverse brake (B2)	AUTOMATIC TRANSAXLE UNIT
No up-shift(1st -> 2nd)	1. Valve body assembly	VALVE BODY ASSEMBLY
No up-shift(1st -> 2nd)	2. 2nd and O/D brake (B1)	AUTOMATIC TRANSAXLE UNIT
No up-shift (2nd -> 3rd)	1. Valve body assembly	VALVE BODY ASSEMBLY
No up-shift (2nd -> 3rd)	2. Direct and O/D clutch (CO)	AUTOMATIC TRANSAXLE UNIT
No up-shift (3rd -> 4th)	1. Valve body assembly	VALVE BODY ASSEMBLY
No up-shift (3rd -> 4th)	2. 2nd and O/D brake (B1)	AUTOMATIC TRANSAXLE UNIT
No up-shift (4th -> 5th)	1. Shift solenoid valve (S4)	DTC P0766 SHIFT SOLENOID "D" PERFORMANCE (SHIFT SOLENOID VALVE S4)
	2. Valve body assembly	VALVE BODY ASSEMBLY
	3. U/D clutch (C3)	AUTOMATIC TRANSAXLE UNIT
No down-shift (5th -> 4th)	1. Shift solenoid (S4)	DTC P0766 SHIFT SOLENOID "D" PERFORMANCE (SHIFT SOLENOID VALVE S4)
No down-shift (5th -> 4th)	2. Valve body assembly	VALVE BODY ASSEMBLY
No down-shift (4th -> 3rd)	Valve body assembly	VALVE BODY ASSEMBLY
No down-shift (3rd -> 2nd)	Valve body assembly	VALVE BODY ASSEMBLY
No down-shift (2nd -> 1st)	Valve body assembly	VALVE BODY ASSEMBLY
No lock up or No lock up off	1. Shift solenoid valve (DSL)	DTC P0741 TORQUE CONVERTER CLUTCH SOLENOID PERFORMANCE (SHIFT SOLENOID VALVE DSL)
	2. Valve body assembly	VALVE BODY ASSEMBLY
	3. Torque converter clutch	TORQUE CONVERTER CLUTCH AND DRIVE PLATE
Harsh engagement (N -> D)	1. Shift solenoid valve (SL1)	DTC P0746 PRESSURE CONTROL SOLENOID "A" PERFORMANCE (SHIFT SOLENOID VALVE SL1)
	2. Valve body assembly	VALVE BODY ASSEMBLY
	3. C1 accumulator	AUTOMATIC TRANSAXLE UNIT
	4. Forward clutch (C1)	AUTOMATIC TRANSAXLE UNIT
	5. One-way clutch No.1 (F1)	AUTOMATIC TRANSAXLE UNIT
	6. U/D one-way clutch (F2)	AUTOMATIC TRANSAXLE UNIT
Harsh engagement (Lock up)	1. Shift solenoid valve (SL2)	DTC P0776 PRESSURE CONTROL SOLENOID "B" PERFORMANCE (SHIFT SOLENOID VALVE SL2)
	2. Valve body assembly	VALVE BODY ASSEMBLY
	3. Torque converter clutch	TORQUE CONVERTER CLUTCH AND DRIVE PLATE
Harsh engagement (N -> R)	1. Valve body assembly	VALVE BODY ASSEMBLY
	2. C2 accumulator	AUTOMATIC TRANSAXLE UNIT
	3. Reverse clutch (C2)	AUTOMATIC TRANSAXLE UNIT
	4. 1st and reverse brake (B2)	AUTOMATIC TRANSAXLE UNIT
Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th)	1. Shift solenoid valve (SLT)	DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID VALVE SLT)
Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th)	2. Valve body assembly	VALVE BODY ASSEMBLY
Harsh engagement (1st -> 2nd)	1. Valve body assembly	VALVE BODY ASSEMBLY
Harsh engagement (1st -> 2nd)	2. 2nd and O/D brake (B1)	AUTOMATIC TRANSAXLE UNIT
Harsh engagement (2nd -> 3rd)	1. Valve body assembly	VALVE BODY ASSEMBLY
	2. CO accumulator	AUTOMATIC TRANSAXLE UNIT
	3. Direct and O/D clutch (CO)	AUTOMATIC TRANSAXLE UNIT
Harsh engagement (3rd -> 4th)	1. Valve body assembly	VALVE BODY ASSEMBLY
Harsh engagement (3rd -> 4th)	2. 2nd and O/D brake (B1)	AUTOMATIC TRANSAXLE UNIT
Harsh engagement (4th -> 5th)	1. Valve body assembly	VALVE BODY ASSEMBLY
	2. C3 accumulator	AUTOMATIC TRANSAXLE UNIT
	3. U/D clutch (C3)	AUTOMATIC TRANSAXLE UNIT
Harsh engagement (5th -> 4th)	1. Valve body assembly	VALVE BODY ASSEMBLY
Harsh engagement (5th -> 4th)	2. B3 accumulator	AUTOMATIC TRANSAXLE UNIT
Slip or shudder (Forward and reverse: After warm-up)	1. Valve body assembly	VALVE BODY ASSEMBLY
	2. Oil strainer	VALVE BODY ASSEMBLY
	3. Direct and O/D clutch (CO)	AUTOMATIC TRANSAXLE UNIT
	4. Forward clutch (C1)	AUTOMATIC TRANSAXLE UNIT
	5. U/D clutch (C3)	AUTOMATIC TRANSAXLE UNIT
	6. 2nd and brake (B1)	AUTOMATIC TRANSAXLE UNIT
	7. U/D brake (B3)	AUTOMATIC TRANSAXLE UNIT
	8. One-way clutch No.1 (F1)	AUTOMATIC TRANSAXLE UNIT
	9. U/D one-way clutch (F2)	AUTOMATIC TRANSAXLE UNIT
	10. 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. Reverse clutch (C2)	AUTOMATIC TRANSAXLE UNIT
Slip or shudder (R position)	2. 1st and reverse brake (B2)	AUTOMATIC TRANSAXLE UNIT
Slip or shudder (1st)	1. Forward clutch (C1)	AUTOMATIC TRANSAXLE UNIT
	2. One-way clutch No.1 (F1)	AUTOMATIC TRANSAXLE UNIT
	3. 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)	DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID VALVE SLT)
No engine braking (1st +- 4th: D position)	U/D brake (B3)	AUTOMATIC TRANSAXLE UNIT
No engine braking (1st: L (1) position)	1. Valve body assembly	VALVE BODY ASSEMBLY
No engine braking (1st: L (1) position)	2. 1st and reverse brake (B2)	AUTOMATIC TRANSAXLE UNIT
No engine braking (2nd: 2 position)	1. Valve body assembly	VALVE BODY ASSEMBLY
No engine braking (2nd: 2 position)	2. 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	VALVE BODY ASSEMBLY
Poor acceleration (All positions)	1. Shift solenoid valve (SLT)	DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID VALVE SLT)
Poor acceleration (All positions)	2. Torque converter clutch	TORQUE CONVERTER CLUTCH AND DRIVE PLATE
Poor acceleration (5th)	1. U/D clutch (C3)	AUTOMATIC TRANSAXLE UNIT
Poor acceleration (5th)	2. U/D planetary gear unit	AUTOMATIC TRANSAXLE UNIT
Engine stalls when starting off or stopping	1. Shift solenoid valve DSL)	DTC P0741 TORQUE CONVERTER CLUTCH SOLENOID PERFORMANCE (SHIFT SOLENOID VALVE DSL)
Engine stalls when starting off or stopping	2. Torque converter clutch	TORQUE CONVERTER CLUTCH AND DRIVE PLATE