## Chapter Electrical Circuit Matrix Chart

 PROBLEM SYMPTO >MS TABLE Symptom Suspected area See No up-shift (A particular gear, from 1st to 4th gear, is not up-shifted) 1. Shift solenoid valve (S1) circuit *1 DTC P0973 SHIFT SOLENOID "A" CONTROL CIRCUIT LOW (SHIFT SOLENOID VALVE S1); DTC P0974 SHIFT SOLENOID "A" CONTROL CIRCUIT HIGH (SHIFT SOLENOID VALVE S1) 2. Shift solenoid valve (S2) circuit *1 DTC P0976 SHIFT SOLENOID "B" CONTROL CIRCUIT LOW (SHIFT SOLENOID VALVE S2); DTC P0977 SHIFT SOLENOID "B" CONTROL CIRCUIT HIGH (SHIFT SOLENOID VALVE S2) 3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No up-shift (4th to 5th) 1. O/D main switch circuit O/D MAIN SWITCH CIRCUIT 2. Engine coolant temperature sensor circuit *1 3. Speed sensor NT circuit *1 DTC P0717 INPUT SPEED SENSOR CIRCUIT NO SIGNAL 4. Shift solenoid valve (SL1) circuit *1 DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL (SHIFT SOLENOID VALVE SL1) 5. Shift solenoid valve (SL2) circuit *1 DTC P0778 PRESSURE CONTROL SOLENOID "B" ELECTRICAL (SHIFT SOLENOID VALVE SL2)

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 6. Shift solenoid valve (SR) circuit *1 DTC P0985 SHIFT SOLENOID "E" CONTROL CIRCUIT LOW (SHIFT SOLENOID VALVE SR); DTC P0986 SHIFT SOLENOID "E" CONTROL CIRCUIT HIGH (SHIFT SOLENOID VALVE SR) 7. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No up-shift (3rd to 4th) 1. Engine coolant temperature sensor circuit *1 2. Shift solenoid valve (S2) circuit *1 DTC P0976 SHIFT SOLENOID "B" CONTROL CIRCUIT LOW (SHIFT SOLENOID VALVE S2); DTC P0977 SHIFT SOLENOID "B" CONTROL CIRCUIT HIGH (SHIFT SOLENOID VALVE S2) 3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No up-shift (1st to 2nd) 1. Shift position L switch circuit SHIFT POSITION L SWITCH CIRCUIT 2. Shift solenoid valve (S2) circuit *1 DTC P0976 SHIFT SOLENOID "B" CONTROL CIRCUIT LOW (SHIFT SOLENOID VALVE S2); DTC P0977 SHIFT SOLENOID "B" CONTROL CIRCUIT HIGH (SHIFT SOLENOID VALVE S2) 3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No down-shift (5th to 4th) 1. O/D main switch circuit O/D MAIN SWITCH CIRCUIT 2. Shift solenoid valve (SL1) circuit *1 DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL (SHIFT SOLENOID VALVE SL1) 3. Shift solenoid valve (SL2) circuit *1 DTC P0778 PRESSURE CONTROL SOLENOID "B" ELECTRICAL (SHIFT SOLENOID VALVE SL2) 4. Shift solenoid valve (SR) circuit *1 DTC P0985 SHIFT SOLENOID "E" CONTROL CIRCUIT LOW (SHIFT SOLENOID VALVE SR); DTC P0986 SHIFT SOLENOID "E" CONTROL CIRCUIT HIGH (SHIFT SOLENOID VALVE SR) 5. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No down-shift (2nd to 1st) 1. Shift position L switch circuit SHIFT POSITION L SWITCH CIRCUIT 2. Shift solenoid valve (S2) circuit *1 DTC P0976 SHIFT SOLENOID "B" CONTROL CIRCUIT LOW (SHIFT SOLENOID VALVE S2); DTC P0977 SHIFT SOLENOID "B" CONTROL CIRCUIT HIGH (SHIFT SOLENOID VALVE S2) 3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No down-shift (A particular gear, from 1. Shift solenoid valve (S1) circuit *1 DTC P0973 SHIFT SOLENOID "A" CONTROL CIRCUIT LOW (SHIFT SOLENOID VALVE S1); DTC P0974 SHIFT SOLENOID "A" CONTROL CIRCUIT HIGH (SHIFT SOLENOID VALVE S1) DTC P0976 SHIFT SOLENOID "B" CONTROL CIRCUIT

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 1st to 4th gear, is not down-shifted) 2. Shift solenoid valve (S2) circuit *1 LOW (SHIFT SOLENOID VALVE S2); DTC P0977 SHIFT SOLENOID "B" CONTROL CIRCUIT HIGH (SHIFT SOLENOID VALVE S2) 3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No lock-up 1. ATF temperature sensor circuit *1 DTC P0710 TRANSMISSION FLUID TEMPERATURE SENSOR "A" CIRCUIT; DTC P0712 TRANSMISSION FLUID TEMPERATURE SENSOR "A" CIRCUIT LOW INPUT; DTC P0713 TRANSMISSION FLUID TEMPERATURE SENSOR "A" CIRCUIT HIGH INPUT 2. Stop light switch circuit *1 DTC P0722 OUTPUT SPEED SENSOR CIRCUIT NO SIGNAL 3. Speed sensor NT circuit *1 DTC P0717 INPUT SPEED SENSOR CIRCUIT NO SIGNAL 4. Shift solenoid valve (SLU) circuit *1 DTC P2759 TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID CONTROL CIRCUIT ELECTRICAL (SHIFT SOLENOID VALVE SLU) 5. Engine coolant temperature sensor circuit *1 DIAGNOSTIC TROUBLE CODE CHART 6. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No lock-up off 1. Shift solenoid valve (SLU) circuit *1 DTC P2759 TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID CONTROL CIRCUIT ELECTRICAL (SHIFT SOLENOID VALVE SLU) 2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Shift point too high or too low 1. Shift solenoid valve (SLT) circuit *1 DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID VALVE SLT) 2. Speed sensor NT circuit *1 DTC P0717 INPUT SPEED SENSOR CIRCUIT NO SIGNAL 3. Speed sensor SP2 circuit *1 DTC P0717 INPUT SPEED SENSOR CIRCUIT NO SIGNAL 4. Throttle position sensor circuit *1 DIAGNOSTIC TROUBLE CODE CHART 5. ATF temperature sensor circuit *1 DTC P0710 TRANSMISSION FLUID TEMPERATURE SENSOR "A" CIRCUIT; DTC P0712 TRANSMISSION FLUID TEMPERATURE SENSOR "A" CIRCUIT LOW INPUT; DTC P0713 TRANSMISSION FLUID TEMPERATURE SENSOR "A" CIRCUIT HIGH INPUT 6. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Up-shift to 5th from 4th while shift lever is in 4 position 1. O/D main switch circuit O/D MAIN SWITCH CIRCUIT 2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 Up-shift to 5th from 4th while engine is cold 1. Engine coolant temperature sensor circuit *1 DIAGNOSTIC TROUBLE CODE CHART 2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Up-shift to 4th from 3rd while shift lever is in 3 position 1. Park/neutral position switch circuit *1 PARK / NEUTRAL POSITION SWITCH 2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Up-shift to 3rd from 2nd while shift lever is in 2 position 1. Park/neutral position switch circuit *1 PARK / NEUTRAL POSITION SWITCH 2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Up-shift to 2nd from 1st while shift lever is in L position 1. Shift position L switch circuit SHIFT POSITION L SWITCH CIRCUIT 2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Harsh engagement (N to D) 1. Speed sensor NT circuit *1 DTC P0717 INPUT SPEED SENSOR CIRCUIT NO SIGNAL 2. Shift solenoid valve (SL1) circuit *1 DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL (SHIFT SOLENOID VALVE SL1) 3. Shift solenoid valve (SLT) circuit *1 DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID VALVE SLT) 4. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Harsh engagement (Lock-up) 1. Speed sensor NT circuit *1 DTC P0717 INPUT SPEED SENSOR CIRCUIT NO SIGNAL 2. Speed sensor SP2 circuit *1 DTC P0717 INPUT SPEED SENSOR CIRCUIT NO SIGNAL 3. Shift solenoid valve (SLU) circuit *1 DTC P2759 TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID CONTROL CIRCUIT ELECTRICAL (SHIFT SOLENOID VALVE SLU) 4. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Harsh engagement (Any driving position) ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Poor acceleration 1. No. 2 ATF temperature sensor circuit *1 DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID VALVE SLT) 2. Engine coolant temperature sensor circuit *1 DIAGNOSTIC TROUBLE CODE CHART 3. Shift solenoid valve (SLT) circuit *1 DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID VALVE SLT)

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 4. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No engine braking ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No kick-down ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Engine stalls when starting off or stopping 1. Shift solenoid valve (SLU) circuit *1 DTC P2759 TOROUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID CONTROL CIRCUIT ELECTRICAL (SHIFT SOLENOID VALVE SLU) 2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE AT OIL TEMP warning light remains on 1. No. 2 ATF temperature sensor circuit *1 DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID VALVE SLT) 2. Engine coolant temperature sensor circuit *1 DIAGNOSTIC TROUBLE CODE CHART 3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Lock-up at 3rd gear 1. No. 2 ATF temperature sensor circuit *1 DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID VALVE SLT) 2. Engine coolant temperature sensor circuit *1 DIAGNOSTIC TROUBLE CODE CHART 3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Shift point too high 1. No. 2 ATF temperature sensor circuit *1 DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL (SHIFT SOLENOID VALVE SLT) 2. Engine coolant temperature sensor circuit *1 DIAGNOSTIC TROUBLE CODE CHART 3. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Malfunction in shifting 1. Park/neutral position switch circuit *1 PARK / NEUTRAL POSITION SWITCH 2. ECM ELECTRONIC CIRCUIT INSPECTION PROCEDURE
 PROBLEM SYMPTOMS TABLE Symptom Suspected area See page Vehicle does not move with shift lever in any forward position and reverse position 1. Transmission control cable AUTOMATIC TRANSMISSION ASSEMBLY 2. Manual valve AUTOMATIC TRANSMISSION UNIT AUTOMATIC TRANSMISSION UNIT 4. Off-vehicle

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 repair matrix chart - Vehicle does not move with shift lever in R position 1. Valve body assembly VALVE BODY ASSEMBLY 2. Off-vehicle repair matrix chart - No up-shift (1st to 2nd) 1. Valve body assembly VALVE BODY ASSEMBLY 2. Off-vehicle repair matrix chart - No up-shift (2nd to 3rd) 1. Valve body assembly VALVE BODY ASSEMBLY 2. Off-vehicle repair matrix chart - No up-shift (3rd to 4th) 1. Valve body assembly VALVE BODY ASSEMBLY 2. Off-vehicle repair matrix chart - No up-shift (4th to 5th) 1. Valve body assembly VALVE BODY ASSEMBLY 2. Off-vehicle repair matrix chart - No down-shift (5th to 4th) 1. Valve body assembly VALVE BODY ASSEMBLY 2. Off-vehicle repair matrix chart - No down-shift (4th to 3rd) 1. Valve body assembly VALVE BODY ASSEMBLY 2. Off-vehicle repair matrix chart - No down-shift (3rd to 2nd) 1. Valve body assembly VALVE BODY ASSEMBLY 2. Off-vehicle repair matrix chart - No down-shift (2nd to 1st) 1. Valve body assembly VALVE BODY ASSEMBLY 2. Off-vehicle repair matrix chart - No lock-up or No lock-up off 1. Shift solenoid valve (SLU) DTC P2757 TOROUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID PERFORMANCE (SHIFT SOLENOID VALVE SLU) 2. Valve body assembly VALVE BODY ASSEMBLY 3. Off-vehicle

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 repair matrix chart - Harsh engagement (N to D) 1. Shift solenoid valve (SL1) DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL (SHIFT SOLENOID VALVE SL1) 2. Valve body assembly VALVE BODY ASSEMBLY 3. C1 accumulator AUTOMATIC TRANSMISSION UNIT 4. Off-vehicle repair matrix chart - Harsh engagement (Lock-up) 1. Shift solenoid valve (SLU) DTC P2757 TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID PERFORMANCE (SHIFT SOLENOID VALVE SLU) 2. Valve body assembly VALVE BODY ASSEMBLY 3. Off-vehicle repair matrix chart - Harsh engagement (N to R) 1. Shift solenoid valve (SLT) DTC P2714 PRESSURE CONTROL SOLENOID "D" PERFORMANCE (SHIFT SOLENOID VALVE SLT) 2. Shift solenoid valve (SLU) DTC P2757 TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID PERFORMANCE (SHIFT SOLENOID VALVE SLU) 3. Valve body assembly VALVE BODY ASSEMBLY 4. C3 accumulator AUTOMATIC TRANSMISSION UNIT 5. Off-vehicle repair matrix chart - Harsh engagement (1st to 2nd, 2nd to 3rd, 3rd to 4th and 4th to 5th) 1. Shift solenoid valve (SLT) DTC P2714 PRESSURE CONTROL SOLENOID "D" PERFORMANCE (SHIFT SOLENOID VALVE SLT) 2. Shift solenoid valve (SL1) DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL (SHIFT SOLENOID VALVE SL1) 3. Valve body assembly VALVE BODY ASSEMBLY Harsh engagement (1st to 2nd) 1. Valve body assembly VALVE BODY ASSEMBLY 2. B3 accumulator AUTOMATIC TRANSMISSION UNIT 3. Off-vehicle repair matrix chart - Harsh engagement (2nd to 1. Valve body assembly VALVE BODY ASSEMBLY

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 3rd) 2. C3 accumulator AUTOMATIC TRANSMISSION UNIT 3. Off-vehicle repair matrix chart - Harsh engagement (3rd to 4th) 1. Valve body assembly VALVE BODY ASSEMBLY 2. C2 accumulator AUTOMATIC TRANSMISSION UNIT 3. Off-vehicle repair matrix chart - Harsh engagement (4th to 5th) 1. Shift solenoid valve (SL1) DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL (SHIFT SOLENOID VALVE SL1) 2. Shift solenoid valve (SL2) DTC P0776 PRESSURE CONTROL SOLENOID "B" PERFORMANCE (SHIFT SOLENOID VALVE SL2) 3. Valve body assembly VALVE BODY ASSEMBLY 4. Off-vehicle repair matrix chart - Harsh engagement (5th to 4th) 1. Shift solenoid valve (SL1) DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL (SHIFT SOLENOID VALVE SL1) 2. Shift solenoid valve (SL2) DTC P0776 PRESSURE CONTROL SOLENOID "B" PERFORMANCE (SHIFT SOLENOID VALVE SL2) 3. Valve body assembly VALVE BODY ASSEMBLY 4. Off-vehicle repair matrix chart - Slippage or shudder (Forward and reverse) 1. Transmission control cable AUTOMATIC TRANSMISSION ASSEMBLY 2. Valve body assembly VALVE BODY ASSEMBLY 3. Oil strainer VALVE BODY ASSEMBLY 4. Off-vehicle repair matrix chart - No engine braking (1st: L position) 1. Valve body assembly VALVE BODY ASSEMBLY 2. Off-vehicle repair matrix chart - No engine braking (2nd: 2 position) 1. Valve body assembly VALVE BODY ASSEMBLY 2. Off-vehicle repair matrix chart - Valve body

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 No kick-down assembly VALVE BODY ASSEMBLY Shift point too high or too low 1. Shift solenoid valve (SLT) DTC P2714 PRESSURE CONTROL SOLENOID "D" PERFORMANCE (SHIFT SOLENOID VALVE SLT) 2. Shift solenoid valve (SL1) DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL (SHIFT SOLENOID VALVE SL1) 3. Valve body assembly VALVE BODY ASSEMBLY Poor acceleration 1. Shift solenoid valve (SLT) DTC P2714 PRESSURE CONTROL SOLENOID "D" PERFORMANCE (SHIFT SOLENOID VALVE SLT) 2. Valve body assembly VALVE BODY ASSEMBLY Engine stalls when starting off or stopping 1. Shift solenoid valve (SLU) DTC P2757 TOROUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID PERFORMANCE (SHIFT SOLENOID VALVE SLU) 2. Valve body assembly VALVE BODY ASSEMBLY
 PROBLEM SYMPTOMS TABLE Symptom Suspected area See Vehicle does not move with shift lever in any forward position and reverse position 1. Rear planetary gear unit AUTOMATIC TRANSMISSION UNIT 2. Torque converter clutch TOROUE CONVERTER CLUTCH AND DRIVE PLATE Vehicle does not move with shift lever in R position 1. Brake No. 4 (B4) AUTOMATIC TRANSMISSION UNIT 2. Clutch No. 3 (C3) AUTOMATIC TRANSMISSION UNIT 3. One-way clutch No.4 (F1) AUTOMATIC TRANSMISSION UNIT No up-shift (1st to 2nd) 1. Brake No. 3 (B3) AUTOMATIC TRANSMISSION UNIT 2. One-way clutch No.1 (F1) AUTOMATIC TRANSMISSION UNIT 3. One-way clutch No. 2 (F2) AUTOMATIC TRANSMISSION UNIT No up-shift (2nd to 3rd) Clutch No. 3 (C3) AUTOMATIC TRANSMISSION UNIT No up-shift (3rd to 4th) Clutch No. 2 (C2) AUTOMATIC TRANSMISSION

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 UNIT No up-shift (4th to 5th) 1. Brake No. 1 (B1) AUTOMATIC TRANSMISSION UNIT 2. Clutch No. 1 (C1) AUTOMATIC TRANSMISSION UNIT No lock-up or No lock-up off Torque converter clutch TOROUE CONVERTER CLUTCH AND DRIVE PLATE Harsh engagement (N to D) 1. Clutch No. 1 (C1) AUTOMATIC TRANSMISSION UNIT 2. One-way clutch No. 3 (F3) AUTOMATIC TRANSMISSION UNIT Harsh engagement (N to R) 1. Clutch No. 3 (C3) AUTOMATIC TRANSMISSION UNIT 2. Brake No. 4 (B4) AUTOMATIC TRANSMISSION UNIT 3. One-way clutch No. 1 (F1) AUTOMATIC TRANSMISSION UNIT Harsh engagement (1st to 2nd) 1. Brake No. 3 (B3) AUTOMATIC TRANSMISSION UNIT 2. One-way clutch No. 1 (F1) AUTOMATIC TRANSMISSION UNIT 3. One-way clutch No. 2 (F2) AUTOMATIC TRANSMISSION UNIT Harsh engagement (2nd to 3rd) Clutch No. 3 (C3) AUTOMATIC TRANSMISSION UNIT Harsh engagement (3rd to 4th) Clutch No. 2 (C2) AUTOMATIC TRANSMISSION UNIT Harsh engagement (4th to 5th) 1. Brake No. 1 (B1) AUTOMATIC TRANSMISSION UNIT 2. Clutch No. 1 (C1) AUTOMATIC TRANSMISSION UNIT Harsh engagement (Lock-up) Torque converter clutch TOROUE CONVERTER CLUTCH AND DRIVE PLATE Slippage or shudder (Forward and reverse: After warm-up) 1. One-way clutch No.1 (F1) AUTOMATIC TRANSMISSION UNIT 2. Clutch No. 3 (C3) AUTOMATIC TRANSMISSION UNIT 3. Torque converter clutch TOROUE CONVERTER CLUTCH AND DRIVE PLATE Slippage or shudder (Particular position: Just after engine starts) Torque converter clutch TOROUE CONVERTER CLUTCH AND DRIVE PLATE 1. Brake No. 4 (B4) AUTOMATIC TRANSMISSION UNIT 2. One-way clutch AUTOMATIC TRANSMISSION

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 Slippage or shudder (R position) No. 1 (F1) UNIT 3. Clutch No. 3 (C3) AUTOMATIC TRANSMISSION UNIT Slippage or shudder (1st) 1. Clutch No. 1 (C1) AUTOMATIC TRANSMISSION UNIT 2. One-way clutch No.3 (F3) AUTOMATIC TRANSMISSION UNIT Slippage or shudder (2nd) 1. Clutch No. 1 (C1) AUTOMATIC TRANSMISSION UNIT 2. Brake No. 3 (B3) AUTOMATIC TRANSMISSION UNIT 3. One-way clutch No. 1 (F1) AUTOMATIC TRANSMISSION UNIT 4. One-way clutch No. 2 (F2) AUTOMATIC TRANSMISSION UNIT Slippage or shudder (3rd) 1. Clutch No. 1 (C1) AUTOMATIC TRANSMISSION UNIT 2. Clutch No. 3 (C3) AUTOMATIC TRANSMISSION UNIT 3. One-way clutch No.1 (F1) AUTOMATIC TRANSMISSION UNIT Slippage or shudder (4th) 1. Clutch No. 1 (C1) AUTOMATIC TRANSMISSION UNIT 2. Clutch No. 2 (C2) AUTOMATIC TRANSMISSION UNIT Slippage or shudder (5th) 1. Clutch No. 2 (C2) AUTOMATIC TRANSMISSION UNIT 2. Clutch No. 3 (C3) AUTOMATIC TRANSMISSION UNIT 3. Brake No. 1 (B1) AUTOMATIC TRANSMISSION UNIT No engine braking (1st - 4th: D position) Clutch No. 1 (C1) AUTOMATIC TRANSMISSION UNIT No engine braking (1st: L position) Brake No. 4 (B4) AUTOMATIC TRANSMISSION UNIT No engine braking (2nd: 2 position) Brake No. 2 (B2) AUTOMATIC TRANSMISSION UNIT No engine braking (3rd: 3 position) Brake No. 1 (B1) AUTOMATIC TRANSMISSION UNIT Poor acceleration (All positions) Torque converter clutch TORQUE CONVERTER CLUTCH AND DRIVE PLATE 1. Clutch No. 1 (C1) AUTOMATIC TRANSMISSION UNIT 2. Clutch No. 3 AUTOMATIC TRANSMISSION

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 Poor acceleration (5th) (C3) UNIT 3. Brake No. 1 (B1) AUTOMATIC TRANSMISSION UNIT 4. Front planetary gear unit AUTOMATIC TRANSMISSION UNIT Engine stalls when starting off or stopping Torque converter clutch TORQUE CONVERTER CLUTCH AND DRIVE PLATE

TERMINALS OF ECM

TERMINALS OF ECM

Fig. 10: Identifying Terminals Of ECM

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 10: Identifying Terminals Of ECM

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HINT:

Each ECM terminal's standard voltage is shown in the table below.

In the table, first follow the information under "Condition". Look under "Symbols (Terminal No.)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specified Condition".

Use the illustration above as a reference for the ECM terminals.

 TERMINAL NO. AND SPECIFIED CONDITION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition LMS (E5-9) - E1 (E6-1)) P-L - BR L shift position switch signal Ignition switch ON 10 to 14 V Ignition switch ON and press continuously shift position L switch Below 1 V 2 (E5-10) - E1 (E6-1) LG - BR 2 shift position switch signal Ignition switch ON and shift lever 2 or L position 10 to 14 V Ignition switch ON and shift lever except 2 and L positions Below 1 V R (E5-11) - E1 (E6-1) B-Y - BR R shift position switch signal Ignition switch ON and shift lever R position 10 to 14 V Ignition switch ON and shift

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 lever except R position Below 1 V D (E5-21) - E1 (E6-1) W-R -BR D shift position switch signal Ignition switch ON and shift lever D or 4 position 10 to 14 V Ignition switch ON and shift lever except D and 4 positions Below 1 V 3 (E5-19) - E1 (E6-1) L - BR 3 shift position switch signal Ignition switch ON and shift lever 3 position 10 to 14 V Ignition switch ON and shift lever except 3 position Below 1 V ODMS (E4-12) -E1 (E6-1) L-W - BR O/D main switch signal Ignition switch ON 10 to 14 V Ignition switch ON and press continuously O/D main switch Below 1 V STP (E4-15) - E1 (E6-1) G-Y - BR Stop light switch signal Brake pedal is depressed 7.5 to 14 V Brake pedal is released Below 1.5 V SLU+ (E7-15) -SLU- (E7-14) P-L - L-W SLU solenoid signal 5th (lock-up) gear Pulse generation (See WAVEFORM 1) S2 (E7-10) - E1 (E6-1) W-L - BR S2 solenoid signal 2nd or 3rd gear 10 to 14 V 1st, 4th or 5th gear Below 1 V S1 (E7-11) - E1 (E6-1) R - BR S1 solenoid signal 1st or 2nd gear 10 to 14 V 3rd, 4th or 5 th gear Below 1 V SLT+ (E7-13) -SLT- (E7-12) Y SLT solenoid signal Engine idle speed Pulse generation (See WAVEFORM 2) SR (E7-9) - E1 (E6-1) G-R - BR SR solenoid signal 5th gear 10 to 14 V 1st gear Below 1 V SL2+ (E7-17) -SL2- (E7-16) GR - LG-B SL2 solenoid signal Engine idle speed Pulse generation (See WAVEFORM 3) SL1+ (E7-19) -SL1- (E7-18) R-B - L SL1 solenoid signal Engine idle speed Pulse generation (See WAVEFORM 4) THO1 (E7-24) - E2 (E8-28) G - G-W No. 1 ATF temperature sensor signal No. 1 ATF temperature: 115°C (239°F) or more Below 1.5 V THO2 (E7-32) - E2 (E8-28) B-L - GW No.2 ATF temperature sensor signal No.2 ATF temperature: 115°C (239°F) or more Below 1.5 V SP2+ (E7-34) -SP2- (E7-26) W-R - Y-R Speed sensor (SP2) signal Vehicle speed 12 mph (20 km/h) Pulse generation (See WAVEFORM 5) NT+ (E7-35) - NT-(E7-27) B - W Speed sensor (NT) signal Engine idle speed Pulse generation (See WAVEFORM 6)

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 STAR/NSW (E7-8) B - BR Park neutral switch Ignition switch ON and shift lever P or N position Below 2 V - E1 (E6-1) signal Ignition switch ON and shift lever except P and N positions 10 to 14 V

1. Waveform 1 (Reference)

1. Waveform 1 (Reference)

 Item Content Symbols (Terminal No.) SLT+ (E7-13) - SLT- (E7-12) Tool Setting 5 V/DIV, 1 ms/DIV Condition Engine idle speed

Fig. 11: Identifying Waveform 1

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 11: Identifying Waveform 1

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. Waveform 2 (Reference)

 Item Content

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

 Symbols (Terminal No.) SLU+ (E7-15) - SLU- (E7-14) Tool Setting 5 V/DIV, 1 ms/DIV Condition 5th (lock-up) gear

Fig. 12: Identifying Waveform 2

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 12: Identifying Waveform 2

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3. Waveform 3 (Reference)

 Item Content Symbols (Terminal No.) SL2+ (E7-17) - SL2- (E7-16) Tool Setting 5 V/DIV, 1 ms/DIV Condition Engine idle speed

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

Fig. 13: Identifying Waveform 3

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 13: Identifying Waveform 3

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4. Waveform 4 (Reference)

 WAVEFORM 4 REFE] RENCE Item Content Symbols (Terminal No.) SL1+ (E7-19) - SL1- (E7-18) Tool Setting 5 V/DIV, 1 ms/DIV Condition Engine idle speed

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

Fig. 14: Identifying Waveform 4

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 14: Identifying Waveform 4

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

5. Waveform 5 (Reference)

 WAVEFORM 5 REFE] RENCE Item Content Symbols (Terminal No.) SP2+ (E7-34) - SP2- (E7-26) Tool Setting 2 V/DIV, 20 ms/DIV Condition Vehicle speed 12 mph (20 km/h)

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

Fig. 15: Identifying Waveform 5

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 15: Identifying Waveform 5

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

6. Waveform 6 (Reference)

 Item Content Symbols (Terminal No.) NT+ (E7-35) - NT- (E7-27) Tool Setting 1 V/DIV, 2 ms/DIV Condition Engine idle speed (shift lever P or N position)

2006 TRANSMISSION A750E Automatic Transaxle - Sequoia

Fig. 16: Identifying Waveform 6

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 16: Identifying Waveform 6

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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