Toyota Tundra (2015 year). Manual — part 587
or
0.93 to 1.07
or
0.66 to 0.80
or
0.51 to 0.65
OFF Malfunction (A)
ECM selected gear
1st
Vehicle speed
2 km/h (1.2 mph) or more and less than 40 km/h (24.9 mph)
Engine speed - Turbine speed (NE - NT)
50 rpm or more
OFF Malfunction (B)
ECM selected gear
6th
Vehicle speed
2 km/h (1.2 mph) or more
Throttle valve opening angle
9% or more at 2000 rpm
(Conditions vary with engine speed)
ON Malfunction (A)
ECM selected gear
5th
Vehicle speed
2 km/h (1.2 mph) or more
Throttle valve opening angle
9% or more at 2000 rpm
(Conditions vary with engine speed)
ON Malfunction (B)
ECM selected gear
6th
Vehicle speed
2 km/h (1.2 mph) or more
Throttle valve opening angle
9% or more at 2000 rpm
(Conditions vary with engine speed)
TYPICAL MALFUNCTION THRESHOLDS
OFF malfunction is detected when OFF malfunction (A) and (B) are set.
OFF Malfunction (A)
Turbine speed/Output speed (NT/NO)
1.24 or more, and 1.49 or less
(This means actual gear is 3rd)
OFF Malfunction (B)
Turbine speed/Output speed (NT/NO)
0.66 or more, and 0.80 or less
(This means actual gear is 5th)
AB60E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
ON Malfunction is detected when ON malfunction (A) and (B) are set.
ON Malfunction (A)
Turbine speed/Output speed (NT/NO)
0.51 or more, and 0.65 or less
(This means actual gear is 6th)
ON Malfunction (B)
Turbine speed/Output speed (NT/NO)
0.51 or more, and 0.65 or less
(This means actual gear is 6th)
INSPECTION PROCEDURE
NOTICE:
Perform the universal trip to clear permanent DTCs
.
1. ACTIVE 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:
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.
AB60E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
A
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 S2 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 S2
ON
ON
OFF
OFF
OFF
ON
PROCEDURE
1.
CHECK DTC OUTPUT (IN ADDITION TO DTC P0756)
(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 P0756 is output
A
P0756 and other DTCs are output
B
HINT:
If any other codes besides P0756 are output, perform troubleshooting for those DTCs first.
B
GO TO DTC CHART
2.
INSPECT SHIFT SOLENOID VALVE S2
AB60E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
OK
(a) Remove shift solenoid valve S2.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
TESTER CONNECTION
CONDITION SPECIFIED CONDITION
Shift solenoid valve S2 connector terminal - Shift solenoid valve S2 body
20°C (68°F)
11 to 15 Ω
OK:
Valve moves and makes an operating noise.
NG
REPLACE SHIFT SOLENOID VALVE S2
3.
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
AB60E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
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