Toyota Tundra (2015 year). Manual — part 354
A
OK
RESULT
PROCEED TO
Only P0894 is output
Only P0894 and P2714 are output
A
P0894, P2714 and other DTCs are output
B
HINT:
If any other codes besides P0894 and P2714 are output, perform troubleshooting for those DTCs first.
B
GO TO DTC CHART
2.
PERFORM ACTIVE TEST USING TECHSTREAM (SHIFT SOLENOID VALVE SLT)
NG
GO TO STEP 17
3.
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) Connect the Techstream to the DLC3.
(b) Clear the DTC
.
(c) Enter the following menus: Powertrain / Engine and ECT / Active Test.
(d) According to the display on the Techstream, perform the Active Test.
HINT:
While driving, the shift position can be forcibly changed with the Techstream.
Engine and ECT
TESTER
TEST PART
CONTROL RANGE
DIAGNOSTIC NOTE
A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
A
DISPLAY
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:
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.
(e) Compare the ECM gear shift command and the actual gear position.
Result
ECM GEAR SHIFT COMMAND
1ST 2ND 3RD 4TH 5TH 6TH
PROCEED
TO
Actual gear position under
malfunction
Shift solenoid
S1
Stuck
ON*1
2nd 2nd
3rd
4th
5th
6th
A
Stuck OFF
1st
1st
3rd
4th
5th N*2
Shift solenoid
S2
Stuck ON
1st
2nd 2nd 4th
6th
6th
B
Stuck OFF
3rd
3rd
3rd
4th
5th
5th
Shift solenoid
S3
Stuck ON
1st
2nd
3rd
3rd N*2 N*2
C
Stuck OFF
3rd
4th
4th
4th
5th
6th
Shift solenoid
S4
Stuck
ON*3
1st
2nd
3rd
4th
5th
6th
D
Stuck OFF
1st
2nd
3rd
4th
4th
4th
Actual gear position when normal
1st
2nd
3rd
4th
5th
6th
E
HINT:
*1: When shift solenoid S1 is stuck ON, the vehicle cannot drive in reverse.
*2: Neutral
*3: When shift solenoid S4 is stuck ON, gear shifting is normal.
B
GO TO STEP 7
C
GO TO STEP 10
D
GO TO STEP 13
E
GO TO STEP 20
A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
OK
OK
OK
4.
INSPECT SHIFT SOLENOID VALVE S1
NG
REPLACE SHIFT SOLENOID VALVE S1
5.
INSPECT TRANSMISSION VALVE BODY ASSEMBLY
NG
REPAIR OR REPLACE TRANSMISSION VALVE BODY
ASSEMBLY
6.
INSPECT TORQUE CONVERTER ASSEMBLY
(a) Check the torque converter assembly
.
OK:
The torque converter operates normally.
NG
REPLACE TORQUE CONVERTER ASSEMBLY
OK
REPAIR OR REPLACE AUTOMATIC TRANSMISSION
ASSEMBLY
7.
INSPECT SHIFT SOLENOID VALVE S2
NG
REPLACE SHIFT SOLENOID VALVE S2
A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
OK
OK
OK
8.
INSPECT TRANSMISSION VALVE BODY ASSEMBLY
NG
REPAIR OR REPLACE TRANSMISSION VALVE BODY
ASSEMBLY
9.
INSPECT TORQUE CONVERTER ASSEMBLY
(a) Check the torque converter assembly
.
OK:
The torque converter operates normally.
NG
REPLACE TORQUE CONVERTER ASSEMBLY
OK
REPAIR OR REPLACE AUTOMATIC TRANSMISSION
ASSEMBLY
10.
INSPECT SHIFT SOLENOID VALVE S3
NG
REPLACE SHIFT SOLENOID VALVE S3
11.
INSPECT TRANSMISSION VALVE BODY ASSEMBLY
NG
REPAIR OR REPLACE TRANSMISSION VALVE BODY
ASSEMBLY
A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
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