Inspection Procedure: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) position and push the Techstream main switch ON.
3. When you use Techstream:

   Select the item "Powertrain / ECT / Trouble Codes".

4. Read the DTCs using the Techstream.

   Result

   Display (DTC output)	Proceed to
   Only P0766 and P0776 are output	A
   P0766, P0776 and other DTCs are output	B

   HINT: 

   If any other codes besides P0766 and P0776 are output, perform troubleshooting for those DTCs first.

B → GO TO DTC CHART 

A: Go to next step 

HINT: 

Using the Techstream to perform Active Test allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Test early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Test.

1. Turn the engine switch off.
2. Lift the vehicle up.
3. Remove the test plug on the transmission case center right side and connect SST.
   Fig 1: Measuring Line Pressure With SST

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   • SST: 09992-00095 
     • 09992-00231
     • 09992-00271
4. Lower the vehicle.
5. Fully apply the parking brake and chock the 4 wheels.
6. Connect the Techstream to the DLC3.
7. Start the engine.
8. Warm up the ATF (Automatic Transmission Fluid).
9. Measure the line pressure when the engine is idling.
10. Turn the Techstream on.
11. Select the item "Powertrain / ECT / Active Test".
12. According to the display on tester, perform the "Active Test".
13. Measure the line pressure with SST.

    Item	Test Details
    Activate the Solenoid (SLT)*	[Test Details] Operate the shift solenoid SLT and raise the line pressure. [Vehicle Condition] Vehicle Stopped. IDL: ON HINT:  OFF: Line pressure up (When the active test of "Activate the Solenoid (SLT)" is performed, the ECM commands the SLT solenoid to turn off). ON: No action (normal operation)

    *: "Activate the Solenoid (SLT)" in the Active Test is performed to check the line pressure changes by connecting the SST to the automatic transmission, which is used in the HYDRAULIC TEST. Refer to HYDRAULIC TEST as well.

    HINT: 

    The pressure values in Active Test and HYDRAULIC TEST are different from each other.

    OK

    The line pressure changes as specified when performing the Active Test.

NG → REPLACE SHIFT SOLENOID VALVE SLT 

OK: Go to next step 

1. Remove the shift solenoid valve S4.
   Fig 2: Inspecting Shift Solenoid Valve S4

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Specified Condition 20°C (68°F)
   Solenoid Connector (S4) - Solenoid Body (S4)	11 to 15 Ω

3. Connect the positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body.

   OK

   The solenoid makes an operating sound.

NG → REPLACE SHIFT SOLENOID VALVE S4 

OK: Go to next step 

1. Remove the shift solenoid valve SL2.
   Fig 3: Identifying Shift Solenoid Valve SL2

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Specified Condition 20°C (68°F)
   1 - 2	5.0 to 5.6 Ω

3. Connect the positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve.

   OK

   The solenoid makes an operating sound.

NG → REPLACE SHIFT SOLENOID VALVE SL2 

OK: Go to next step 

1. Check the transmission valve body assembly.

   OK

   There are no foreign objects on each valve.

NG → REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY 

OK → REPAIR OR REPLACE AUTOMATIC TRANSMISSION ASSEMBLY