AUTOMATIC TRANSAXLE SYSTEM > PROBLEM SYMPTOMS TABLE

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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.

Chapter 1:
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.

1. Chapter 1: Electronic Circuit Matrix Chart
Symptom	Suspected area	See page
No down-shift (A particular gear, from 1st to 4th gear, is not down-shifted)	ECM	Click here
No down-shift (5th -> 4th)	1. Transmission control switch (4 <--> D position) circuit *1	Click here
	2. Shift solenoid valve (S4) circuit *1	Click here
	3. ECM	Click here
No up-shift (A particular gear, from 1st to 4th gear, is not up-shifted)	ECM	Click here
No up-shift (4th -> 5th)	1. Transmission control switch (4 <--> D position) circuit *1	Click here
	2. Shift solenoid valve (S4) circuit *1	Click here
	3. ECM	Click here
No lock-up	1. Stop light switch circuit *1	Click here
	2. Engine coolant temp. sensor circuit *1	Click here
	3. ECM	Click here
No lock-up off	ECM	Click here
Shift point too high or too low	1. Throttle position sensor circuit *1	Click here
Shift point too high or too low	2. ECM	Click here
Up-shift to 5th from 4th while shift lever is in 4 position	1. Transmission control switch (4 <--> D position) circuit *1	Click here
Up-shift to 5th from 4th while shift lever is in 4 position	2. ECM	Click here
Up-shift to 5th from 4th while engine is cold	1. Engine coolant temp. sensor circuit *1	Click here
Up-shift to 5th from 4th while engine is cold	2. ECM	Click here
Up-shift to 2nd from 1st while shift lever is in L position	1. Transmission control switch (2 <--> L position) circuit *1	Click here
Up-shift to 2nd from 1st while shift lever is in L position	2. ECM	Click here
Harsh engagement (N -> D)	1. Shift solenoid valve (SL1) circuit *1	Click here
Harsh engagement (N -> D)	2. ECM	Click here
Harsh engagement (Lock-up)	ECM	Click here
Harsh engagement (Any driving position)	ECM	Click here
Poor acceleration	ECM	Click here
No kick-down	ECM	Click here
Engine stalls when starting off or stopping	ECM	Click here
Malfunction in shifting	1. Park / neutral position switch circuit *1	Click here
Malfunction in shifting	2. ECM	Click here

2. Chapter 2: On-Vehicle Repair and Off-Vehicle Repair
Symptom	Suspected area	See page
Vehicle does not move in any forward position and in reverse positions	1. Valve body assembly	Click here
	2. U/D brake (B3)	Click here
	3. Torque converter clutch	Click here
Vehicle does not move in R position	1. Valve body assembly	Click here
	2. Reverse clutch (C2)	Click here
	3. 1st and reverse brake (B2)	Click here
No up-shift (1st -> 2nd)	1. Valve body assembly	Click here
No up-shift (1st -> 2nd)	2. 2nd and O/D brake (B1)	Click here
No up-shift (2nd -> 3rd)	1. Valve body assembly	Click here
No up-shift (2nd -> 3rd)	2. Direct and O/D clutch (C0)	Click here
No up-shift (3rd -> 4th)	1. Valve body assembly	Click here
No up-shift (3rd -> 4th)	2. 2nd and O/D brake (B1)	Click here
No up-shift (4th -> 5th)	1. Shift solenoid valve (S4)	Click here
	2. Valve body assembly	Click here
	3. U/D clutch (C3)	Click here
No down-shift (5th -> 4th)	1. Shift solenoid (S4)	Click here
No down-shift (5th -> 4th)	2. Valve body assembly	Click here
No down-shift (4th -> 3rd)	Valve body assembly	Click here
No down-shift (3rd -> 2nd)	Valve body assembly	Click here
No down-shift (2nd -> 1st)	Valve body assembly	Click here
No lock-up or No lock-up off	1. Shift solenoid valve (DSL)	Click here
	2. Valve body assembly	Click here
	3. Torque converter clutch	Click here
Harsh engagement (N -> D)	1. Shift solenoid valve (SL1)	Click here
	2. Valve body assembly	Click here
	3. C1 accumulator	Click here
	4. Forward clutch (C1)	Click here
	5. One-way clutch No.1 (F1)	Click here
	6. U/D one-way clutch (F2)	Click here
Harsh engagement (Lock-up)	1.Shift solenoid valve (SL2)	Click here
	2. Valve body assembly	Click here
	3. Torque converter clutch	Click here
Harsh engagement (N -> R)	1. Valve body assembly	Click here
	2. C2 accumulator	Click here
	3. Reverse clutch (C2)	Click here
	4. 1st and reverse brake (B2)	Click here
Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th)	1. Shift solenoid valve (SLT)	Click here
Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th)	2. Valve body assembly	Click here
Harsh engagement (1st -> 2nd)	1. Valve body assembly	Click here
Harsh engagement (1st -> 2nd)	2. 2nd and O/D brake (B1)	Click here
Harsh engagement (2nd -> 3rd)	1. Valve body assembly	Click here
	2. C0 accumulator	Click here
	3. Direct and O/D clutch (C0)	Click here
Harsh engagement (3rd -> 4th)	1. Valve body assembly	Click here
Harsh engagement (3rd -> 4th)	2. 2nd and O/D brake (B1)	Click here
Harsh engagement (4th -> 5th)	1. Valve body assembly	Click here
	2. C3 accumulator	Click here
	3. U/D clutch (B3)	Click here
Harsh engagement (5th -> 4th)	1. Valve body assembly	Click here
Harsh engagement (5th -> 4th)	2. B3 accumulator	Click here
Slip or shudder (Forward and reverse: After warm-up)	1. Valve body assembly	Click here
	2. Oil strainer	Click here
	3. Direct and O/D clutch (C0)	Click here
	4. Forward clutch (C1)	Click here
	5. U/D clutch (C3)	Click here
	6. 2nd and brake (B1)	Click here
	7. U/D brake (B3)	Click here
	8. One-way clutch No.1 (F1)	Click here
	9. U/D one-way clutch (F2)	Click here
	10. Torque converter clutch	Click here
Slip or shudder (Particular position: Just after engine starts)	Torque converter clutch	Click here
Slip or shudder (R position)	1. Reverse clutch (C2)	Click here
Slip or shudder (R position)	2. 1st and reverse brake (B2)	Click here
Slip or shudder (1st)	1. Forward clutch (C1)	Click here
	2. One-way clutch No. 1 (F1)	Click here
	3. U/D one-way clutch (F2)	Click here
Slip or shudder (2nd)	2nd and O/D brake (B1)	Click here
Slip or shudder (3rd)	Direct and O/D clutch (C0)	Click here
Slip or shudder (4th)	2nd and O/D brake (B1)	Click here
Slip or shudder (5th)	U/D clutch (C3)	Click here
Shift position too high or too low	Shift solenoid valve (SLT)	Click here
No engine braking (1st +- 4th: D position)	U/D brake (B3)	Click here
No engine braking (1st: L (1) position)	1. Valve body assembly	Click here
No engine braking (1st: L (1) position)	2. 1st and reverse brake (B2)	Click here
No engine braking (2nd: 2 position)	1. Valve body assembly	Click here
No engine braking (2nd: 2 position)	2. 2nd and O/D brake (B1)	Click here
No engine braking (3rd: 3 position)	U/D brake (B3)	Click here
No kick-down	Valve body assembly	Click here
Poor acceleration (All positions)	1. Shift solenoid valve (SLT)	Click here
Poor acceleration (All positions)	2. Torque converter clutch	Click here
Poor acceleration (5th)	1. U/D clutch (C3)	Click here
Poor acceleration (5th)	2. U/D planetary gear unit	Click here
Engine stalls when starting off or stopping	1. Shift solenoid valve (DSL)	Click here
Engine stalls when starting off or stopping	2. Torque converter clutch	Click here