Toyota Tundra. Manual — part 2820

b. Turn the ignition switch off.

c. Connect the Techstream to the DLC3.

d. Turn the ignition switch to ON.

e. Turn the Techstream on.

f. Enter the following menus: Powertrain/Engine and ECT/Active Test.

g. According to the display on the Techstream, perform the Active Test.

HINT:

While driving, the shift position can be forcibly changed with the Techstream. Comparing the shift
position commanded by the Active Test with the actual shift position enables you to confirm the
problem (see FAIL-SAFE TABLE ).

Engine and ECT:

ACTIVE TEST TABLE

HINT:



This test can be conducted when the vehicle speed is 50 km/h (31 MPH) or less.



The 4th to 5th and 5th to 6th up-shifts must be performed with the accelerator pedal released.



The 6th to 5th and 5th to 4th down-shifts must be performed with the accelerator pedal
released.



Do not operate the accelerator pedal for at least 2 seconds after shifting and do not shift
successively.



The shift position commanded by the ECM is shown in the Data List display on the
Techstream.



The shift solenoid valve SL2 turns ON/OFF normally when the shift lever is in the D
position.

SHIFT SOLENOID VALVE SL2 REFERENCE TABLE

Tester

Display

Test Part

Control Range

Diagnostic Note

Control the

Shift Position

Operate shift solenoid
valve and set each shift
position



Press "-->"
button: Shift
up



Press "<--"
button: Shift
down

Possible to check operation of shift
solenoid valves [Vehicle Condition] 50
km/h (31 MPH) or less

ECM gear shift command 1st 2nd 3rd 4th 5th 6th
Shift solenoid valve S4

OFF OFF OFF OFF ON ON

Shift solenoid valve SL2 ON ON ON ON OFF OFF

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

1. CHECK DTC OUTPUT (IN ADDITION TO DTCS P0766 AND P0776)

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch to ON.

c. Turn the Techstream on.

d. Enter the following menus: Powertrain/Engine and ECT/Trouble Codes.

e. Read the DTCs using the Techstream.

Result

RESULT REFERENCE TABLE

HINT:

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

B: GO TO DTC TABLE (See DIAGNOSTIC TROUBLE CODE TABLE )

A: Go to next step.

2. PERFORM ACTIVE TEST USING TECHSTREAM (SHIFT SOLENOID VALVE SLT)

HINT:

Using the Techstream to perform Active Tests 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 Tests
early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while
performing Active Tests.

a. Remove the test plug on the transmission case center right side and connect SST.

SST 09992-00095 (09992-00231, 09992-00271)

Result

Proceed to

Only P0766 and P0776 are output

A

P0766, P0776 and other DTCs are output

B

NOTE:



Perform the test at the normal operating ATF temperature: 50 to 80°C
(122 to 176°F).



Be careful to prevent SST's hose from interfering with the exhaust
pipe.



Perform the test with the A/C OFF.

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

Fig. 61: Identifying Test Plug On Transmission Case Center Right Side
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Connect the Techstream to the DLC3.

c. Start the engine and warm it up.

d. Measure the line pressure with SST.

e. Turn the Techstream on.

f. Enter the following menus: Powertrain/Engine and ECT/Active Test.

g. According to the display on the Techstream, perform the Active Test.

h. Measure the line pressure.

Engine and ECT:

LINE PRESSURE SPECIFICATION TABLE

Tester

Display

Test Part

Control Range

Diagnostic

Note

Activate the

Solenoid

(SLT)*

Operate shift
solenoid SLT and
raise line pressure

ON or OFF
HINT:



OFF: Line pressure up (when Active
Test "Activate the Solenoid (SLT)" is
performed, ECM commands SLT
solenoid to turn OFF)



ON: No action (normal operation)

[Vehicle
Condition]



Vehicle
stopped



Engine
idling

HINT:

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

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

NG: REPLACE SHIFT SOLENOID VALVE SLT (See DISASSEMBLY )

OK: Go to next step.

3. INSPECT SHIFT SOLENOID VALVE S4

a. Remove shift solenoid valve S4.

b. Measure the resistance according to the value (s) in the table below.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

c. Connect the battery's positive (+) lead to the terminal of the solenoid valve connector, and the

negative (-) lead to the solenoid valve body. Then check that the valve moves and makes an
operating noise.

OK: Valve moves and makes an operating noise.

Fig. 62: Identifying Shift Solenoid Valve S4
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

*: Activate the Solenoid (SLT) in the Active Test is performed to check the line pressure changes
by connecting SST to the automatic transmission, which is used in HYDRAULIC TEST as well.
Note that the pressure values in the Active Test and Hydraulic Test are different.

Tester Connection

Condition

Specified

Condition

Shift solenoid valve S4 connector terminal - Shift solenoid valve
S4 body

20°C (68°

F)

11 to 15 ohms

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra