Toyota Tundra (2015 year). Manual — part 449
A
1.
CHECK DTC OUTPUT (IN ADDITION TO DTC P0729)
(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 P0729 is output
A
P0729 and other DTCs are output
B
HINT:
If any other codes besides P0729 are output, perform troubleshooting for those DTCs first.
B
GO TO DTC CHART
2.
PERFORM ACTIVE TEST USING TECHSTREAM (RUNNING TEST)
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) Warm up the engine.
(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:
A760F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISS...
OK
While driving, the shift position can be forcibly changed with the Techstream.
Engine and ECT
TESTER
DISPLAY
TEST PART
CONTROL RANGE
DIAGNOSTIC NOTE
Control the
Shift Position
Operate shift solenoid valves
and set each shift position
Press "→"
button: Shift up
Press "←"
button: Shift
down
Possible to check operation of
the shift solenoid valves.
[Vehicle Condition]
50 km/h (30 mph) or less
HINT:
1st
2nd
3rd
4th
5th
6th
Actual gear position under malfunction
1st
2nd
3rd
4th
5th
4th
OK:
Gear position changes in accordance with the tester command.
NG
REPAIR OR REPLACE TRANSMISSION VALVE BODY
ASSEMBLY
3.
PERFORM ACTIVE TEST USING TECHSTREAM (SHIFT SOLENOID VALVE SLT)
NOTICE:
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.
A760F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISS...
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.
(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 the 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. Please
note that the pressure values in the Active Test and Hydraulic Test are different.
OK:
A760F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISS...
OK
The line pressure changes as specified when performing the Active Test.
Text in Illustration
*1
Test Plug
NG
REPLACE SHIFT SOLENOID VALVE SLT
4.
CLEAR DTC AND PERFORM RUNNING TEST
(a) Clear the DTC
.
(b) Check for the DTC again after conducting the Monitor Drive Pattern
.
OK:
No DTC code output.
NG
REPAIR OR REPLACE AUTOMATIC TRANSMISSION
ASSEMBLY
OK
END
A760F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISS...
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