Toyota Tundra (2015 year). Manual — part 321

the engine speed reaches the stall speed.

(11) In the same manner, perform the test with the shift lever in R.

Specified Line Pressure

CONDITION

D POSITION

R POSITION

Stall speed

1280 to 1460 kPa

(13.1 to 14.9 kgf/cm

2

, 186 to 212 psi)

1180 to 1400 kPa

(12.0 to 14.3 kgf/cm

2

, 171 to 203 psi)

Evaluation

PROBLEM

POSSIBLE CAUSE

Measured values at both positions are higher than specified

pressure

Shift solenoid valve SLT

defective

Regulator valve defective

Measured values at both positions are lower than specified

pressure

Shift solenoid valve SLT

defective

Regulator valve defective

Oil pump defective

Pressure is low in D only

D position circuit fluid leak

Clutch No. 1 (C1) defective

Pressure is low in R only

R position circuit fluid leak

Clutch No. 3 (C3) defective

Brake No. 4 (B4) defective

A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...

Last Modified: 9-16-2014

6.6 D

Doc ID: RM000000W7C0XUX

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: MANUAL SHIFTING TEST;

2015 MY Tundra [08/2014 - ]

MANUAL SHIFTING TEST

1. MANUAL SHIFTING TEST

HINT:

Through this test, it can be determined whether the trouble occurs in an electrical circuit or if it is a
mechanical problem in the transmission.
If any abnormalities are found in the following test, the problem is in the transmission itself.

It is possible to deactivate the electrical shift control by

disconnecting the transmission wire. The gear positions can then
be changed mechanically with the shift lever.

(b) Drive the vehicle with the transmission wire disconnected. Move the shift lever to each position to check

whether the gear position changes as shown in the table below.

SHIFT LEVER POSITION

GEAR POSITION

P

P

R

R

D

4th

.

A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...

Last Modified: 9-16-2014

6.6 D

Doc ID: RM000000W7F0Q2X

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: INITIALIZATION; 2015 MY

Tundra [08/2014 - ]

INITIALIZATION

1. RESET MEMORY

NOTICE:

The reset procedure is as follows.

(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 / Utility / Reset Memory.

NOTICE:

After performing Reset Memory, be sure to perform the Road Test

described earlier.

HINT:

The ECM learns through the Road Test.

2. ATF THERMAL DEGRADATION ESTIMATE RESET

NOTICE:

HINT:

If 50000 or more is displayed for the Data List item "ATF Thermal Degradation Estimate",

similar operation.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

NOTICE:

Do not start the engine.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine and ECT / Utility / ATF Thermal Degradation Estimate

A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...

Reset.

A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...