Toyota Tundra (2015 year). Manual — part 461
A
1.
CHECK DTC OUTPUT (IN ADDITION TO DTC P0781)
(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 P0781 is output
A
P0781 and other DTCs are output
B
HINT:
If any other codes besides P0781 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
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
1st
3rd
3rd
N*
N*
N*: Neutral
OK:
Gear position changes in accordance with the Techstream command.
NG
REPAIR OR REPLACE TRANSMISSION VALVE BODY
ASSEMBLY
3.
PERFORM ACTIVE TEST USING TECHSTREAM (SHIFT SOLENOID VALVE SLT)
NG
REPLACE SHIFT SOLENOID VALVE SLT
4.
CLEAR DTC AND PERFORM RUNNING TEST
NG
REPAIR OR REPLACE AUTOMATIC TRANSMISSION
A760F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISS...
ASSEMBLY
OK
END
A760F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISS...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000000W830N8X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: A760F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: P0894,P2714; Transmission
Component Slipping; 2015 MY Tundra [08/2014 - ]
DTC
P0894
Transmission Component Slipping
DTC
P2714
Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT)
DESCRIPTION
Shift solenoid valve SLT controls the transmission line pressure for smooth transmission operation based on
signals from the throttle position sensor and vehicle speed sensor. The ECM adjusts the current to shift solenoid
valve SLT to control the hydraulic line pressure coming from the primary regulator valve.
Appropriate line pressure assures smooth shifting with varying engine outputs.
DTC
CODE
DTC DETECTION CONDITION
TROUBLE AREA
P0894
The ECM detects a malfunction in shift solenoid valve SLT, S1, S2,
S3, S4 or SL2, or the 1-2 shift valve, or an incorrect gear 6 ratio
Shift solenoid valve SLT
remains open or closed
Shift solenoid valve S1,
S2, S3, S4 or SL2
remains open or closed
Gear 6 incorrect ratio
(sequence valve) or 1-2
shift valve is stuck
Valve body is blocked
A760F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISS...
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