Toyota Tundra (2015 year). Manual — part 700
(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
.
Engine and ECT:
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 (30 mph) or less
HINT:
This test can be conducted when the vehicle speed is 50 km/h (30 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 S1 turns ON/OFF normally when the shift lever is in the D position.
ECM gear shift command
1st
2nd
3rd
4th
5th
6th
Shift solenoid valve S1
OFF
ON
ON
ON
ON
ON
PROCEDURE
1.
CHECK DTC OUTPUT (IN ADDITION TO DTC P0751)
(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
PROCEED TO
Only P0751 is output
A
P0751 and other DTCs are output
B
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
A
HINT:
If any other codes besides P0751 are output, perform troubleshooting for those DTCs first.
B
GO TO DTC CHART
2.
PERFORM ACTIVE TEST USING TECHSTREAM (SHIFT SOLENOID VALVE SLT)
NOTICE:
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.
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
(b) Connect the Techstream to the DLC3.
(c) Start the engine and warm it up.
(d) Measure the line pressure with SST.
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
OK
(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:
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:
*: 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 the Hydraulic Test
as well. Note that
the pressure values in the Active Test and Hydraulic Test are different.
OK:
The line pressure changes as specified when performing the Active Test.
NG
REPLACE SHIFT SOLENOID VALVE SLT
3.
INSPECT SHIFT SOLENOID VALVE S1
(a) Remove shift solenoid valve S1.
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
OK
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
TESTER CONNECTION
CONDITION SPECIFIED CONDITION
Shift solenoid valve S1 connector terminal - Shift solenoid valve S1 body
20°C (68°F)
11 to 15 Ω
OK:
Valve moves and makes an operating noise.
NG
REPLACE SHIFT SOLENOID VALVE S1
4.
INSPECT TRANSMISSION VALVE BODY ASSEMBLY
(a) Check the transmission valve body assembly
.
OK:
There are no foreign objects on any valve.
NG
REPAIR OR REPLACE TRANSMISSION VALVE BODY
ASSEMBLY
OK
REPAIR OR REPLACE AUTOMATIC TRANSMISSION
ASSEMBLY
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
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