Problem Symptoms Table

HINT:

Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
The Matrix Chart is divided into 3 chapters. When troubleshooting, check Chapter 1 first. If instructions are given in Chapter 1 to proceed to 2 or 3, proceed as instructed.
If the instruction "Proceed to next circuit inspection shown on problem symptoms table" is given in the flowchart for each circuit, proceed to the next suspected area in the table.
If the problem still occurs even though there are no abnormalities in any of the circuits, check the ECM and replace it if necessary.

CHAPTER 1: ELECTRICAL CIRCUIT MATRIX CHART

SHIFT POSITION CHART

Symptom	Suspected area
No up-shift (a particular gear from 1st to 4th gear is not up-shifted)	1. Shift solenoid valve S1 circuit *
	2. Shift solenoid valve S2 circuit *
	3. ECM
No up-shift (4th -> 5th)	1. Transmission control switch circuit (D - 4) *
	2. Engine coolant temp. sensor circuit *
	3. Speed sensor NT circuit *
	4. Shift solenoid valve SL1 circuit *
	5. Shift solenoid valve SL2 circuit *
	6. Shift solenoid valve SR circuit *
	7. ECM
No up-shift (3rd -> 4th)	1. Engine coolant temp. sensor circuit *
	2. Shift solenoid valve S2 circuit *
	3. ECM
No up-shift (1st -> 2nd)	1. Transmission control switch circuit (2 - L) *
	2. Shift solenoid valve S2 circuit *
	3. ECM
No down-shift (5th -> 4th)	1. Transmission control switch circuit (D - 4) *
	2. Shift solenoid valve SL1 circuit *
	3. Shift solenoid valve SL2 circuit *
	4. Shift solenoid valve SR circuit *
	5. ECM
No down-shift (2nd -> 1st)	1. Transmission control switch circuit (2 - L) *
	2. Shift solenoid valve S2 circuit *
	3. ECM
No down-shift (a particular gear from 1st to 4th gear is not down-shifted)	1. Shift solenoid valve S1 circuit *
	2. Shift solenoid valve S2 circuit *
	3. ECM
No lock-up	1. ATF temperature sensor circuit *
	2. Transfer L4 position switch circuit *
	3. Stop light switch circuit *
	4. Speed sensor NT circuit *
	5. Shift solenoid valve SLU circuit *
	6. ECM
No lock-up off	ECM
Shift point too high or too low	1. Shift solenoid valve SLT circuit *
	2. Speed sensor NT circuit *
	3. Speed sensor SP2 circuit *
	4. Throttle position sensor circuit *
	5. ATF temperature sensor circuit *
	6. PATTERN SELECT SWITCH CIRCUIT (PWR MODE SWITCH)
	7. Transfer L4 position switch circuit *
	8. ECM
Up-shift to 5th from 4th while shift lever on 4	1. Transmission control switch circuit (D - 4) *
Up-shift to 5th from 4th while shift lever on 4	2. ECM
Up-shift to 5th from 4th while engine is cold	1. Engine coolant temp. sensor circuit *
Up-shift to 5th from 4th while engine is cold	2. ECM
Up-shift to 4th from 3rd while shift lever on 3	1. Park/Neutral position switch circuit *
Up-shift to 4th from 3rd while shift lever on 3	2. ECM
Up-shift to 3rd from 2nd while shift lever on 2	1. Park/Neutral position switch circuit *
Up-shift to 3rd from 2nd while shift lever on 2	2. ECM
Up-shift to 2nd from 1st while shift lever on L	1. Transmission control switch circuit (2 - L) *
Up-shift to 2nd from 1st while shift lever on L	2. ECM
Harsh engagement (N -> D)	1. Speed sensor NT circuit *
	2. Shift solenoid valve SL1 circuit *
	3. Shift solenoid valve SLT circuit *
	4. ECM
Harsh engagement (Lock-up)	1. Speed sensor NT circuit *
	2. Speed sensor SP2 circuit *
	3. Shift solenoid valve SLU circuit *
	4. ECM
Harsh engagement (any driving position)	ECM
Poor acceleration	1. No. 2 ATF temperature sensor circuit *
Poor acceleration	2. ECM
No engine braking	ECM
No kick-down	ECM
Engine stalls when starting off or stopping	1. Shift solenoid valve SLU circuit *
Engine stalls when starting off or stopping	2. ECM
No pattern select (PWR)	1. PATTERN SELECT SWITCH CIRCUIT (PWR MODE SWITCH)
No pattern select (PWR)	2. ECM
No 2nd start	1. PATTERN SELECT SWITCH CIRCUIT (2ND START SWITCH)
	2. Transmission control switch circuit (2 - L) *
	3. ECM
AT oil temp. warning light remains on	1. No. 2 ATF temperature sensor circuit *
AT oil temp. warning light remains on	2. ECM
Lock-up at 3rd gear	1. No. 2 ATF temperature sensor circuit *
Lock-up at 3rd gear	2. ECM
Shift point too high	1. No. 2 ATF temperature sensor circuit *
Shift point too high	2. ECM
A/T P indicator light does not illuminate	1. A/T P indicator light circuit
	2. Combination meter circuit
	3. ECM

HINT:

*: When the circuit is defective, a DTC may be output.

CHAPTER 2: ON-VEHICLE REPAIR AND OFF-VEHICLE REPAIR

PROBLEM SYMPTOMS CHART

Symptom	Suspected area
Vehicle does not move in all positions other than P and N	1. Transmission control cable
	2. Manual valve
	3. Parking lock pawl
	4. Off-vehicle repair matrix chart
Vehicle does not move with shift lever on R	1. VALVE BODY ASSEMBLY
Vehicle does not move with shift lever on R	2. Off-vehicle repair matrix chart
No up-shift (1st -> 2nd)	1. VALVE BODY ASSEMBLY
No up-shift (1st -> 2nd)	2. Off-vehicle repair matrix chart
No up-shift (2nd -> 3rd)	1. VALVE BODY ASSEMBLY
No up-shift (2nd -> 3rd)	2. Off-vehicle repair matrix chart
No up-shift (3rd -> 4th)	1. VALVE BODY ASSEMBLY
No up-shift (3rd -> 4th)	2. Off-vehicle repair matrix chart
No up-shift (4th -> 5th)	1. VALVE BODY ASSEMBLY
No up-shift (4th -> 5th)	2. Off-vehicle repair matrix chart
No down-shift (5th -> 4th)	1. VALVE BODY ASSEMBLY
No down-shift (5th -> 4th)	2. Off-vehicle repair matrix chart
No down-shift (4th -> 3rd)	1. VALVE BODY ASSEMBLY
No down-shift (4th -> 3rd)	2. Off-vehicle repair matrix chart
No down-shift (3rd -> 2nd)	1. VALVE BODY ASSEMBLY
No down-shift (3rd -> 2nd)	2. Off-vehicle repair matrix chart
No down-shift (2nd -> 1st)	1. VALVE BODY ASSEMBLY
No down-shift (2nd -> 1st)	2. Off-vehicle repair matrix chart
No lock-up or no lock-up off	1. Shift solenoid valve SLU
	2. VALVE BODY ASSEMBLY
	3. Off-vehicle repair matrix chart
Harsh engagement (N -> D)	1. Shift solenoid valve SL1
	2. VALVE BODY ASSEMBLY
	3. C1 accumulator
	4. Off-vehicle repair matrix chart
Harsh engagement (Lock-up)	1. Shift solenoid valve SLU
	2. VALVE BODY ASSEMBLY
	3. Off-vehicle repair matrix chart
Harsh engagement (N -> R)	1. Shift solenoid valve SLT
	2. Shift solenoid valve SLU
	3. VALVE BODY ASSEMBLY
	4. C3 accumulator
	5. Off-vehicle repair matrix chart
Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th)	1. Shift solenoid valve SLT
	2. Shift solenoid valve SL1
	3. VALVE BODY ASSEMBLY
Harsh engagement (1st -> 2nd)	1. VALVE BODY ASSEMBLY
	2. B3 accumulator
	3. Off-vehicle repair matrix chart
Harsh engagement (2nd -> 3rd)	1. VALVE BODY ASSEMBLY
	2. C3 accumulator
	3. Off-vehicle repair matrix chart
Harsh engagement (3rd -> 4th)	1. VALVE BODY ASSEMBLY
	2. C2 accumulator
	3. Off-vehicle repair matrix chart
Harsh engagement (4th -> 5th)	1. Shift solenoid valve SL1
	2. Shift solenoid valve SL2
	3. VALVE BODY ASSEMBLY
	4. Off-vehicle repair matrix chart
Harsh engagement (5th -> 4th)	1. Shift solenoid valve SL1
	2. Shift solenoid valve SL2
	3. VALVE BODY ASSEMBLY
	4. Off-vehicle repair matrix chart
Slip or shudder (forward and reverse)	1. Transmission control rod
	2. VALVE BODY ASSEMBLY
	3. Oil strainer
	4. Off-vehicle repair matrix chart
No engine braking (1st/shift lever on L)	1. VALVE BODY ASSEMBLY
No engine braking (1st/shift lever on L)	2. Off-vehicle repair matrix chart
No engine braking (2nd/shift lever on 2)	1. VALVE BODY ASSEMBLY
No engine braking (2nd/shift lever on 2)	2. Off-vehicle repair matrix chart
No kick-down	VALVE BODY ASSEMBLY
Shift point too high or too low	1. Shift solenoid valve SLT
	2. Shift solenoid valve SL1
	3. VALVE BODY ASSEMBLY
Poor acceleration	1. Shift solenoid valve SLT
Poor acceleration	2. VALVE BODY ASSEMBLY
Engine stalls when starting off or stopping	1. Shift solenoid valve SLU
Engine stalls when starting off or stopping	2. VALVE BODY ASSEMBLY

CHAPTER 3: OFF-VEHICLE REPAIR

PROBLEM SYMPTOMS CHART

Symptom	Suspected area
Vehicle does not move in all positions other than P and N	1. Repair planetary gear unit
Vehicle does not move in all positions other than P and N	2. TORQUE CONVERTER CLUTCH
Vehicle does not move with shift lever on R	1. B4 Brake
	2. C3 Clutch
	3. F1 one-way clutch
No up-shift (1st -> 2nd)	1. B3 Brake
	2. F1 one-way clutch
	3. F2 one-way clutch
No up-shift (2nd -> 3rd)	C3 Clutch
No up-shift (3rd -> 4th)	C2 Clutch
No up-shift (4th -> 5th)	1. B1 Brake
No up-shift (4th -> 5th)	2. C1 Clutch
No lock-up or no lock-up off	TORQUE CONVERTER CLUTCH
Harsh engagement (N -> D)	1. C1 Clutch
Harsh engagement (N -> D)	2. F3 one-way clutch
Harsh engagement (N -> R)	1. C3 Clutch
	2. B4 Brake
	3. F1 one-way clutch
Harsh engagement (1 -> 2)	1. B3 Brake
	2. F1 one-way clutch
	3. F2 one-way clutch
Harsh engagement (2 -> 3)	C3 Clutch
Harsh engagement (3 -> 4)	C2 Clutch
Harsh engagement (4 -> 5)	1. B1 Brake
Harsh engagement (4 -> 5)	2. C1 Clutch
Harsh engagement (lock-up)	TORQUE CONVERTER CLUTCH
Slip or shudder (forward and reverse: after warm-up)	1. F1 one-way clutch
	2. C3 Clutch
	3. TORQUE CONVERTER CLUTCH
Slip or shudder (particular position: just after engine starts)	TORQUE CONVERTER CLUTCH
Slip or shudder (shift lever on R)	1. B4 Brake
	2. F1 one-way clutch
	3. C3 Clutch
Slip or shudder (1st)	1. C1 Clutch
Slip or shudder (1st)	2. F3 one-way clutch
Slip or shudder (2nd)	1. C1 Clutch
	2. B3 Brake
	3. F1 one-way clutch
	4. F2 one-way clutch
Slip or shudder (3rd)	1. C1 Clutch
	2. C3 Clutch
	3. F1 one-way clutch
Slip or shudder (4th)	1. C1 Clutch
Slip or shudder (4th)	2. C2 Clutch
Slip or shudder (5th)	1. C2 Clutch
	2. C3 Clutch
	3. B1 Brake
No engine braking (1st +- 4th/shift lever on D)	C1 Clutch
No engine braking (1st/shift lever on L)	B4 Brake
No engine braking (2nd/shift lever on 2)	B2 Brake
No engine braking (3rd/shift lever on 3)	B1 Brake
No engine braking (all shift lever positions)	TORQUE CONVERTER CLUTCH
Poor acceleration (5th)	1. C1 Clutch
	2. C3 Clutch
	3. B1 Brake
	4. Front planetary gear unit
Engine stalls when starting off or stopping	TORQUE CONVERTER CLUTCH