Automatic Transaxle (Service Information): Overview Scion tC II

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1. PRECAUTIONS AND WORK DESCRIPTION The U760E automatic transaxle does not have an oil filler tube or oil level gauge. When adding fluid, add fluid through the refill hole in the transaxle case. The fluid level can be adjusted by draining excess fluid (allowing excess fluid to overflow) through the overflow tube of the oil pan. HINT: "Overflow" indicates the condition under which fluid comes out of the overflow plug hole. Before adjusting the fluid level, add the specified amount of fluid when the engine is cold and warm up the engine to circulate the fluid in the transaxle. Make sure that the fluid temperature is as specified and that the engine is idling. The U760E automatic transaxle requires Toyota Genuine ATF WS. The adjustment should be performed according to the following procedures and notes.
2. WORK FLOW The adjustment should be performed according to the procedures referenced in the work flow below.
3. BEFORE FILLING TRANSAXLE WITH FLUID Lift the vehicle. NOTE: Set the vehicle on a lift so that the vehicle is kept level when it is lifted up. Remove the rear engine under cover LH.
4. PERFORM INITIAL FILLING NOTE: If the transaxle is hot (ATF temperature is high), wait until the fluid temperature becomes the same as the ambient temperature before starting the following procedure (recommended ATF temperature: approximately 20°C [68°F]). Remove the refill plug and gasket from the automatic transaxle. NOTE: After performing any of the following operations, it is not necessary to perform the initial filling procedure. Proceed to the "Add Specified Amount of Fluid" procedure. Operation that does not Require Initial Filling Disconnection of the oil cooler tube or oil cooler hose Repair of fluid leakage due to a loose case plug, or a faulty plug gasket or O-ring Replacement of a new transaxle with torque converter (fluid-filled parts) Using a 6 mm hexagon socket wrench, remove the overflow plug and gasket from the automatic transaxle. TEXT IN ILLUSTRATION *1 No. 1 Transmission Oil Filler Tube *2 Overflow Plug *3 Hexagon Socket Wrench NOTE: If ATF comes out after removing the overflow plug, wait until the fluid flow slows and only drops come out. If ATF comes out, it is not necessary to perform the initial filling procedure. After checking the tightening torque of the No. 1 transmission oil filler tube, temporarily install the overflow plug. Using a 6 mm hexagon socket wrench, check that the No. 1 transmission oil filler tube is tightened to the specified torque. TEXT IN ILLUSTRATION *1 No. 1 Transmission Oil Filler Tube *2 Overflow Plug Hole *3 Hexagon Socket Wrench Torque: 0.8 N*m (8 kgf*cm, 7 in.*lbf) NOTE: If the transmission No. 1 transmission oil filler tube is not tightened to the specified torque, the amount of fluid cannot be precisely adjusted. HINT: To check the torque of the No. 1 transmission oil filler tube, insert the hexagon socket wrench into the overflow plug hole. Perform initial filling. Fill the transaxle through the refill hole until fluid begins to trickle out of the overflow plug hole. NOTE: Use Toyota Genuine ATF WS. Wait until the fluid flow slows and only drops come out. Temporarily install the overflow plug. HINT: Reuse the old gasket. The plug will be removed again to adjust the fluid level.
5. ADD SPECIFIED AMOUNT OF FLUID Fill the transaxle with the correct amount of fluid as listed in the table below. NOTE: The refill amount differs depending on the operation that was performed. Standard Capacity Operation Performed Fill Amount Disconnection of the oil cooler tube or oil cooler hose Repair of fluid leakage due to a loose case plug, or a faulty plug gasket or O-ring Replacement of a new transaxle with torque converter (fluid-filled parts) 0.5 liters (0.5 US qts, 0.4 Imp. qts) Removal and installation of drive shaft Removal and installation of transaxle case oil seal Removal and installation of oil pan 2.7 liters (2.9 US qts, 2.4 Imp. qts) Removal and installation of valve body 3.2 liters (3.4 US qts, 2.8 Imp. qts) Removal and installation of transaxle (remove torque converter) 3.4 liters (3.6 US qts, 3.0 Imp. qts) Replacement of transaxle (new torque converter) 5.1 liters (5.4 US qts, 4.5 Imp. qts) Replacement of transaxle (reused torque converter) 3.5 liters (3.7 US qts, 3.1 Imp. qts) Temporarily install the refill plug to avoid fluid spillage. HINT: Reuse the old gasket. The plug will be removed again to adjust the fluid level. Lower the vehicle.
6. ADJUST FLUID TEMPERATURE When using the Techstream: HINT: The actual ATF temperature can be checked on the Data List using the Techstream. Connect the Techstream to the DLC3 with the ignition switch off. Turn the ignition switch to ON and turn the Techstream on. NOTE: Check that electrical systems, such as the air conditioning system, audio system and lighting system, are off. Enter the following menus: Powertrain / ECT / Active Test / Connect the TC and TE1. Enter the following menus: A/T Oil Temperature 1. Check A/T Oil Temperature 1. NOTE: If the fluid temperature is below 35°C (95°F), proceed to the next step (recommended ATF temperature: 30°C [86°F] or less). If the fluid temperature is 45°C (113°F) or higher, turn the ignition switch off and wait until the fluid temperature drops below 35°C (95°F). Enter the following menus: Connect the TC and TE1 / ON. HINT: The indicator lights in the meter will not blink to indicate output DTCs when "Connect the TC and TE1 / ON" is performed. Depress and hold the brake pedal. Start the engine. Slowly move the shift lever from P to D, and then back to P. HINT: Slowly move the shift lever to circulate the fluid through each part of the transaxle. While observing the D shift indicator in the combination meter, move the shift lever back and forth between N and D every 1.5 seconds for 6 seconds or more. NOTE: Do not pause for more than 1.5 seconds. HINT: Performing this operation will cause the vehicle to enter fluid temperature detection mode. Check that the D shift indicator comes on for 2 seconds. HINT: When fluid temperature detection mode is activated, the D shift indicator in the combination meter comes on for 2 seconds. If the D shift indicator does not come on for 2 seconds, return to the step where the Active Test "Connect the TC and TE1" is first turned on and perform the procedure again. Move the shift lever from N to P. Release the brake pedal. Enter the following menus: TC and TE1 / OFF. NOTE: Make sure that the Active Test "Connect the TC and TE1" is not turned on. If the Active Test is on, the fluid level cannot be precisely adjusted due to fluctuations in idle speed. HINT: Turning off the Active Test "Connect the TC and TE1" activates engine idle speed control mode. In engine idle speed control mode, engine idle speed control starts when the fluid temperature becomes 35°C (95°F) or higher and the engine speed is maintained at approximately 800 rpm. Even after the Active Test "Connect the TC and TE1" is turned off, fluid temperature detection mode is active until the ignition switch is turned off. Warm up the engine with the engine idling until the fluid temperature reaches the normal operating temperature (35 to 45°C [95 to 113°F]). Below Normal Operating Temperature Normal Operating Temperature Above Normal Operating Temperature 35°C or less (95°F or less) 35 to 45°C (95 to 113°F) 45°C or higher (113°F or higher) NOTE: If the fluid temperature is within the normal operating temperature range, immediately proceed to the "Adjust Fluid Level" procedure. If the fluid temperature is 45°C (113°F) or higher, stop the engine and wait until the fluid temperature drops to 35°C (95°F) or less. Then perform the "Adjust Fluid Temperature" procedure again from the beginning. HINT: In fluid temperature detection mode, the D shift indicator comes on, goes off, or blinks depending on the fluid temperature. D SHIFT INDICATOR Below Normal Operating Temperature (35°C or less) (95°F or less) Normal Operating Temperature (35 to 45°C) (95 to 113°F) Above Normal Operating Temperature (45°C or higher) (113°F or higher) Off On Blinks TEXT IN ILLUSTRATION *a Off *b On *c Blinks When not using the Techstream: Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3 with the ignition switch off. SST: 09843-18040 TEXT IN ILLUSTRATION *a Front view of DLC3 Depress and hold the brake pedal. Start the engine. NOTE: Check that electrical systems, such as the air conditioning system, audio system and lighting system, are off. HINT: The indicator lights in the meter blink to indicate output DTCs when terminals TC and CG are connected. Slowly move the shift lever from P to D, and then back to P. HINT: Slowly move the shift lever to circulate the fluid through each part of the transaxle. While observing the D shift indicator in the combination meter, move the shift lever back and forth between N and D every 1.5 seconds for 6 seconds or more. NOTE: Do not pause for more than 1.5 seconds. HINT: Performing this operation will cause the vehicle to enter fluid temperature detection mode. Check that the D shift indicator comes on for 2 seconds. HINT: When fluid temperature detection mode is activated, the D shift indicator in the combination meter comes on for 2 seconds. If the D shift indicator does not come on for 2 seconds, return to the step where terminal TC is first connected and perform the procedure again. Move the shift lever from N to P. Release the brake pedal. Remove SST from terminals 13 (TC) and 4 (CG). SST: 09843-18040 NOTE: Make sure that terminals TC and CG are not connected. If the terminals are connected, the fluid level cannot be precisely adjusted due to fluctuations in engine speed. HINT: When terminals TC and CG are disconnected, engine idle control mode is activated. In engine idle speed control mode, engine idle speed control starts when the fluid temperature becomes 35°C (95°F) or higher and the engine speed is maintained at approximately 800 rpm. Even after terminals TC and CG are disconnected, fluid temperature detection mode is active until the ignition switch is turned off. Allow the engine to idle until the D shift indicator comes on again. D SHIFT INDICATOR Below Normal Operating Temperature (35°C or less) (95°F or less) Normal Operating Temperature (35 to 45°C) (95 to 113°F) Above Normal Operating Temperature (45°C or higher) (113°F or higher) Off On Blinks NOTE: If the D shift indicator is on, immediately proceed to the "Adjust Fluid Level" procedure. If the D shift indicator blinks, stop the engine and wait until the fluid temperature drops to 35°C (95°F) or less (the indicator goes off). Then perform the "Adjust Fluid Temperature" procedure again from the beginning. HINT: In fluid temperature detection mode, the D shift indicator comes on, goes off, or blinks depending on the fluid temperature. The fluid filling procedure should be performed when the D shift indicator is on (the fluid temperature is within the normal operating temperature range).
7. ADJUST FLUID LEVEL WARNING: Use caution as the engine is running and the radiator fan is operating during the following procedure. Lift the vehicle. Adjust the fluid level. Using a 6 mm hexagon socket wrench, remove the overflow plug and gasket. WARNING: Be careful as the fluid coming out of the overflow hole is hot. Check the amount of fluid that comes out of the overflow plug hole. NOTE: If only a small amount of fluid (approximately 1 cc) comes out of the overflow hole, then only fluid remaining in the No. 1 transmission oil filler tube has come out. This condition is not considered to be overflow, so it is necessary to add fluid. If the amount of fluid that comes out of the overflow plug hole is large, wait until the fluid flow slows and only drops come out. If no fluid comes out of the overflow plug hole, remove the refill plug and gasket. Then add transaxle fluid through the refill hole until fluid comes out of the overflow plug hole. Wait until the fluid flow slows and only drops come out. NOTE: Use Toyota Genuine ATF WS. Check that the fluid flow has slowed and only drops come out. HINT: The fluid flow will not completely stop because the fluid expands as its temperature increases. Install a new gasket and the overflow plug. Torque: 40 N*m (408 kgf*cm, 30 ft.*lbf) Install a new gasket and the refill plug. Torque: 49 N*m (500 kgf*cm, 36 ft.*lbf) Lower the vehicle. Turn the ignition switch off. HINT: Turning the ignition switch off exits fluid temperature detection mode. Disconnect the Techstream from the DLC3 (when using the Techstream).
8. AFTER FILLING TRANSAXLE Lift the vehicle. Clean each part. Check for fluid leaks. Install the rear engine under cover LH. Lower the vehicle.

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1. REMOVE TRANSMISSION VALVE BODY ASSEMBLY Refer to «REMOVAL»(ref-451170-S13458606402012020700000)
2. REMOVE SPEED SENSOR Disconnect the connector of the speed sensor. Remove the 2 bolts and speed sensor from the transmission valve body assembly.

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1. INSTALL SPEED SENSOR Temporarily install the speed sensor to the transmission valve body assembly with the 2 bolts. NOTE: Do not use a speed sensor that has been dropped. Tighten the 2 bolts in the order shown in the illustration. Torque: 11 N*m (110 kgf*cm, 8 ft.*lbf) Connect the connector of the speed sensor.
2. INSTALL TRANSMISSION VALVE BODY ASSEMBLY Refer to «INSTALLATION»(ref-451170-S01127829742012020700000)

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1. REMOVE NO. 1 ENGINE UNDER COVER. Refer to «REMOVAL - Step 7»(ref-451161-S28460905572012020700000)
2. DRAIN AUTOMATIC TRANSAXLE FLUID See step 1
3. REMOVE AUTOMATIC TRANSAXLE OIL PAN SUB-ASSEMBLY See step 11
4. REMOVE AUTOMATIC TRANSAXLE OIL PAN GASKET See step 12
5. REMOVE TRANSMISSION OIL CLEANER MAGNET See step 13
6. INSPECT TRANSMISSION OIL CLEANER MAGNET See step 1
7. REMOVE VALVE BODY OIL STRAINER ASSEMBLY See step 15
8. REMOVE TRANSMISSION VALVE BODY ASSEMBLY See step 8
9. REMOVE TRANSMISSION WIRE Remove the bolt and lock plate and disconnect the 8 connectors. Remove the transmission wire from the clamp. Remove the bolt, lock plate and transmission wire from the transmission valve body assembly.

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1. INSTALL TRANSMISSION WIRE Coat the O-ring with ATF. Install the transmission wire and lock plate to the transmission valve body assembly with the bolt. Torque: 11 N*m (110 kgf*cm, 8 ft.*lbf) Install the transmission wire to the clamp. Install the transmission wire and lock plate to the transmission valve body assembly with the bolt. Torque: 11 N*m (110 kgf*cm, 8 ft.*lbf) Connect the 8 connectors.
2. INSTALL TRANSMISSION VALVE BODY ASSEMBLY See step 3
3. INSTALL VALVE BODY OIL STRAINER ASSEMBLY See step 54
4. INSTALL TRANSMISSION OIL CLEANER MAGNET See step 55
5. INSTALL AUTOMATIC TRANSAXLE OIL PAN GASKET See step 56
6. INSTALL AUTOMATIC TRANSAXLE OIL PAN SUB-ASSEMBLY See step 57
7. ADJUST AUTOMATIC TRANSAXLE FLUID Refer to «ADJUSTMENT»(ref-451170-S04278577072012020700000)
8. INSTALL NO. 1 ENGINE UNDER COVER. Refer to «INSTALLATION - Step 83»(ref-451161-S14091459052012020700000)

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1. REMOVE NO. 1 ENGINE UNDER COVER. Refer to «REMOVAL - Step 7»(ref-451161-S28460905572012020700000)
2. DRAIN AUTOMATIC TRANSAXLE FLUID See step 1
3. REMOVE AUTOMATIC TRANSAXLE OIL PAN SUB-ASSEMBLY See step 11
4. REMOVE AUTOMATIC TRANSAXLE OIL PAN GASKET See step 12
5. REMOVE TRANSMISSION OIL CLEANER MAGNET See step 13
6. INSPECT TRANSMISSION OIL CLEANER MAGNET See step 1
7. REMOVE VALVE BODY OIL STRAINER ASSEMBLY See step 15
8. REMOVE TRANSMISSION VALVE BODY ASSEMBLY Remove the 11 bolts and transmission valve body assembly from the transaxle. NOTE: When removing the transmission valve body assembly, be careful not to allow the speed sensor and the transaxle case to interfere with each other.
9. REMOVE NO. 1 GOVERNOR APPLY GASKET Remove the 2 No. 1 governor apply gaskets from the transaxle case.
10. REMOVE MANUAL VALVE Remove the manual valve from the transmission valve body assembly.

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1. REMOVE SPEED SENSOR See step 2
2. REMOVE TRANSMISSION WIRE See step 9
3. REMOVE SHIFT SOLENOID VALVE SL Remove the bolt and shift solenoid valve SL from the transmission valve body. TEXT IN ILLUSTRATION *1 Solenoid Valve SL
4. REMOVE SHIFT SOLENOID VALVE SL2 Remove the 2 bolts, clamp, lock plate and shift solenoid valve SL2 from the transmission valve body. TEXT IN ILLUSTRATION *1 Clamp *2 Lock Plate *3 Solenoid Valve SL2 *4 Solenoid Valve SL1
5. REMOVE SHIFT SOLENOID VALVE SL1 Remove shift solenoid valve SL1 from the transmission valve body.
6. REMOVE SHIFT SOLENOID VALVE SLT Remove the bolt, lock plate and shift solenoid valve SLT from the transmission valve body. TEXT IN ILLUSTRATION *1 Lock Plate *2 Solenoid Valve SLT *3 Solenoid Valve SLU
7. REMOVE SHIFT SOLENOID VALVE SLU Remove shift solenoid valve SLU from the transmission valve body.
8. REMOVE SHIFT SOLENOID VALVE SL3 Remove the bolt, lock plate and shift solenoid valve SL3 from the transmission valve body. TEXT IN ILLUSTRATION *1 Lock Plate *2 Solenoid Valve SL3
9. REMOVE SHIFT SOLENOID VALVE SL4 Remove the bolt, lock plate and shift solenoid valve SL4 from the transmission valve body. TEXT IN ILLUSTRATION *1 Lock Plate *2 Solenoid Valve SL4

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1. INSPECT SHIFT SOLENOID VALVE SL Measure the resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Component without harness connected (Shift Solenoid Valve SL) Standard Resistance Tester Connection Condition Specified Condition Solenoid Connector - Solenoid Body 20°C (68°F) 11 to 15 ohms If the result is not as specified, replace shift solenoid valve SL. Connect the positive (+) lead of the battery to the terminal of the solenoid valve connector and the negative (-) lead to the solenoid body. Then check that the valve moves and makes an operating sound. NOTE: When using battery voltage during the inspection, do not bring the positive (+) and negative (-) tester probes too close to each other as a short circuit may occur. OK Valve moves and makes an operating sound. If the result is not as specified, replace shift solenoid valve SL.
2. INSPECT SHIFT SOLENOID VALVE SLT Measure the resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Component without harness connected (Shift Solenoid Valve SLT) Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 5.0 to 5.6 ohms If the result is not as specified, replace the shift solenoid valve SLT. Connect the positive (+) lead of the battery with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector. Then check that the valve moves and makes an operating sound. NOTE: When using battery voltage during the inspection, do not bring the positive (+) and negative (-) tester probes too close to each other as a short circuit may occur. OK Valve moves and makes an operating sound. If the result is not as specified, replace shift solenoid valve SLT.
3. INSPECT SHIFT SOLENOID VALVE SLU HINT: Refer to Inspect Shift Solenoid Valve SLT.
4. INSPECT SHIFT SOLENOID VALVE SL1 HINT: Refer to Inspect Shift Solenoid Valve SLT.
5. INSPECT SHIFT SOLENOID VALVE SL2 HINT: Refer to Inspect Shift Solenoid Valve SLT.
6. INSPECT SHIFT SOLENOID VALVE SL3 HINT: Refer to Inspect Shift Solenoid Valve SLT.
7. INSPECT SHIFT SOLENOID VALVE SL4 HINT: Refer to Inspect Shift Solenoid Valve SLT.

See also:
• REMOVAL
• REMOVAL - Step 4