U151F Automatic Transaxle. Automatic Transaxle System Problem Symptoms Table

Transmission. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

U151F Automatic Transaxle. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

Automatic Transaxle System -- 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 2 chapters. When troubleshooting, check Chapter 1 first. If instructions are given in Chapter 1 to proceed to 2, proceed as instructed.
If the instruction "PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE" is given in the flowchart of each circuit, inspect the suspected areas in descending order for each symptom.
If the problem still occurs even though there are no malfunctions in any of the circuits, check the ECM and replace it if necessary.

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	RAV4_ACA30 RM000000UZ306OX.html
No down-shift (5th -> 4th)	Transmission control switch (4 <--> D position) circuit	RAV4_ACA30 RM000000W840DQX.html
	Shift solenoid valve S4 circuit*	RAV4_ACA30 RM000000W8C035X.html
	ECM	RAV4_ACA30 RM000000UZ306OX.html
No up-shift (a particular gear, from 1st to 4th gear, is not up-shifted)	ECM	RAV4_ACA30 RM000000UZ306OX.html
No up-shift (4th -> 5th)	Transmission control switch (4 <--> D position) circuit	RAV4_ACA30 RM000000W840DQX.html
	Shift solenoid valve S4 circuit*	RAV4_ACA30 RM000000W8C035X.html
	ECM	RAV4_ACA30 RM000000UZ306OX.html
No lock-up	Stop light switch circuit*	RAV4_ACA30 RM000000W880AJX.html
	Engine coolant temperature sensor circuit*	RAV4_ACA30 RM000002DSC02YX.html
	ECM	RAV4_ACA30 RM000000UZ306OX.html
No lock-up off	ECM	RAV4_ACA30 RM000000UZ306OX.html
Shift point too high or too low	Throttle position sensor circuit*	RAV4_ACA30 RM000002DSC02YX.html
Shift point too high or too low	ECM	RAV4_ACA30 RM000000UZ306OX.html
Up-shift to 5th from 4th while shift lever on 4	Transmission control switch (4 <--> D position) circuit	RAV4_ACA30 RM000000W840DQX.html
Up-shift to 5th from 4th while shift lever on 4	ECM	RAV4_ACA30 RM000000UZ306OX.html
Up-shift to 5th from 4th while engine is cold	Engine coolant temperature sensor circuit*	RAV4_ACA30 RM000002DSC02YX.html
Up-shift to 5th from 4th while engine is cold	ECM	RAV4_ACA30 RM000000UZ306OX.html
Up-shift to 2nd from 1st while shift lever is on L	Transmission control switch (2 <--> L position) circuit*	RAV4_ACA30 RM000000W840DQX.html
Up-shift to 2nd from 1st while shift lever is on L	ECM	RAV4_ACA30 RM000000UZ306OX.html
Harsh engagement (N -> D)	Shift solenoid valve SL1 circuit*	RAV4_ACA30 RM000000W8F068X.html
Harsh engagement (N -> D)	ECM	RAV4_ACA30 RM000000UZ306OX.html
Harsh engagement (lock-up)	ECM	RAV4_ACA30 RM000000UZ306OX.html
Harsh engagement (any driving position)	ECM	RAV4_ACA30 RM000000UZ306OX.html
Poor acceleration	ECM	RAV4_ACA30 RM000000UZ306OX.html
No kick-down	ECM	RAV4_ACA30 RM000000UZ306OX.html
Engine stalls when starting off or stopping	ECM	RAV4_ACA30 RM000000UZ306OX.html
Malfunction in shifting	Park/Neutral position switch circuit*	RAV4_ACA30 RM000000W840DQX.html
	Transmission control switch (4 <--> D position) circuit	RAV4_ACA30 RM000000W840DQX.html
	ECM	RAV4_ACA30 RM000000UZ306OX.html

HINT:

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

Chapter 2: On-Vehicle Repair and Off-Vehicle Repair
Symptom	Suspected Area	See page
Vehicle does not move in any forward position and with the shift lever on R	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
	B3 U/D brake	RAV4_ACA30 RM000000YX9024X.html
	Torque converter clutch	RAV4_ACA30 RM000001GS000WX.html
Vehicle does not move with shift lever on R	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
	C2 reverse clutch	RAV4_ACA30 RM000000YX9024X.html
	B2 1st and reverse brake	RAV4_ACA30 RM000000YX9024X.html
No up-shift (1st -> 2nd)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
No up-shift (1st -> 2nd)	B1 2nd and O/D brake	RAV4_ACA30 RM000000YX9024X.html
No up-shift (2nd -> 3rd)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
No up-shift (2nd -> 3rd)	C0 direct and O/D clutch	RAV4_ACA30 RM000000YX9024X.html
No up-shift (3rd -> 4th)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
No up-shift (3rd -> 4th)	B1 2nd and O/D brake	RAV4_ACA30 RM000000YX9024X.html
No up-shift (4th -> 5th)	Shift solenoid valve S4	RAV4_ACA30 RM000000W8205AX.html
	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
	C3 U/D clutch	RAV4_ACA30 RM000000YX9024X.html
No down-shift (5th -> 4th)	Shift solenoid valve S4	RAV4_ACA30 RM000000W8205AX.html
No down-shift (5th -> 4th)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
No down-shift (4th -> 3rd)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
No down-shift (3rd -> 2nd)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
No down-shift (2nd -> 1st)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
No lock-up or lock-up off	Shift solenoid valve DSL	RAV4_ACA30 RM0000019S500VX.html
	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
	Torque converter clutch	RAV4_ACA30 RM000001GS000WX.html
Harsh engagement (N -> D)	Shift solenoid valve SL1	RAV4_ACA30 RM0000019S000VX.html
	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
	C1 accumulator	RAV4_ACA30 RM000000YX9024X.html
	C1 forward clutch	RAV4_ACA30 RM000000YX9024X.html
	F1 No. 1 one-way clutch	RAV4_ACA30 RM000000YX9024X.html
	F2 U/D one-way clutch	RAV4_ACA30 RM000000YX9024X.html
Harsh engagement (lock-up)	Shift solenoid valve SL2	RAV4_ACA30 RM0000012UR01UX.html
	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
	Torque converter clutch	RAV4_ACA30 RM000001GS000WX.html
Harsh engagement (N -> R)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
	C2 accumulator	RAV4_ACA30 RM000000YX9024X.html
	C2 reverse clutch	RAV4_ACA30 RM000000YX9024X.html
	B2 1st and reverse brake	RAV4_ACA30 RM000000YX9024X.html
Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th)	Shift solenoid valve SLT	RAV4_ACA30 RM000000W8A06NX.html
Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
Harsh engagement (1st -> 2nd)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
Harsh engagement (1st -> 2nd)	B1 2nd and O/D brake	RAV4_ACA30 RM000000YX9024X.html
Harsh engagement (2nd -> 3rd)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
	C0 accumulator	RAV4_ACA30 RM000000YX9024X.html
	C0 direct and O/D clutch	RAV4_ACA30 RM000000YX9024X.html
Harsh engagement (3rd -> 4th)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
Harsh engagement (3rd -> 4th)	B1 2nd and O/D brake	RAV4_ACA30 RM000000YX9024X.html
Harsh engagement (4th -> 5th)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
	C3 accumulator	RAV4_ACA30 RM000000YX9024X.html
	C3 U/D clutch	RAV4_ACA30 RM000000YX9024X.html
Harsh engagement (5th -> 4th)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
Harsh engagement (5th -> 4th)	B3 accumulator	RAV4_ACA30 RM000000YX9024X.html
Slip or shudder (forward and reverse: after warm-up)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
	Oil strainer	RAV4_ACA30 RM000001SU5018X.html
	C0 direct and O/D clutch	RAV4_ACA30 RM000000YX9024X.html
	C1 forward clutch	RAV4_ACA30 RM000000YX9024X.html
	C3 U/D clutch	RAV4_ACA30 RM000000YX9024X.html
	B1 2nd and brake	RAV4_ACA30 RM000000YX9024X.html
	B3 U/D brake	RAV4_ACA30 RM000000YX9024X.html
	F1 No. 1 one-way clutch	RAV4_ACA30 RM000000YX9024X.html
	F2 U/D one-way clutch	RAV4_ACA30 RM000000YX9024X.html
	Torque converter clutch	RAV4_ACA30 RM000001GS000WX.html
Slip or shudder (particular position: just after engine starts)	Torque converter clutch	RAV4_ACA30 RM000001GS000WX.html
Slip or shudder (shift lever on R)	C2 reverse clutch	RAV4_ACA30 RM000000YX9024X.html
Slip or shudder (shift lever on R)	B2 1st and reverse brake	RAV4_ACA30 RM000000YX9024X.html
Slip or shudder (1st)	C1 forward clutch	RAV4_ACA30 RM000000YX9024X.html
	F1 No. 1 one-way clutch	RAV4_ACA30 RM000000YX9024X.html
	F2 U/D one-way clutch	RAV4_ACA30 RM000000YX9024X.html
Slip or shudder (2nd)	B1 2nd and O/D brake	RAV4_ACA30 RM000000YX9024X.html
Slip or shudder (3rd)	C0 direct and O/D clutch	RAV4_ACA30 RM000000YX9024X.html
Slip or shudder (4th)	B1 2nd and O/D brake	RAV4_ACA30 RM000000YX9024X.html
Slip or shudder (5th)	C3 U/D clutch	RAV4_ACA30 RM000000YX9024X.html
Shift position too high or too low	Shift solenoid valve SLT	RAV4_ACA30 RM000000W8A06NX.html
No engine braking (1st to 4th/shift lever on D)	B3 U/D brake	RAV4_ACA30 RM000000YX9024X.html
No engine braking (1st/shift lever on L)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
No engine braking (1st/shift lever on L)	B2 1st and reverse brake	RAV4_ACA30 RM000000YX9024X.html
No engine braking (2nd/shift lever on 2)	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
No engine braking (2nd/shift lever on 2)	B1 2nd and O/D brake	RAV4_ACA30 RM000000YX9024X.html
No engine braking (3rd/shift lever on 3)	B3 U/D brake	RAV4_ACA30 RM000000YX9024X.html
No kick-down	Valve body assembly	RAV4_ACA30 RM000001SU5018X.html
Poor acceleration (all positions)	Shift solenoid valve SLT	RAV4_ACA30 RM000000W8A06NX.html
Poor acceleration (all positions)	Torque converter clutch	RAV4_ACA30 RM000001GS000WX.html
Poor acceleration (5th)	C3 U/D clutch	RAV4_ACA30 RM000000YX9024X.html
Poor acceleration (5th)	U/D planetary gear unit	RAV4_ACA30 RM000000YX9024X.html
Engine stalls when starting off or stopping	Shift solenoid valve DSL	RAV4_ACA30 RM0000019S500VX.html
Engine stalls when starting off or stopping	Torque converter clutch	RAV4_ACA30 RM000001GS000WX.html