Toyota Tundra (2015 year). Manual - part 327

Last Modified: 9-16-2014

6.6 D

Doc ID: RM000000W780UQX

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 -           ]

Title: A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: CHECK MODE PROCEDURE;

2015 MY Tundra [08/2014 -        ]

CHECK MODE PROCEDURE

1. DESCRIPTION

(a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot

detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode,

DTCs are stored with 1-trip detection logic.

2. CHECK MODE PROCEDURE

(a) Make sure that the following conditions are met:

(1) Battery positive voltage 11 V or more.

(2) Throttle valve fully closed.

(3) Shift lever in P or N.

(4) A/C off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Powertrain / Engine and ECT / Utility / Check Mode.

(f) Check that the MIL flashes as shown in the illustration.

NOTICE:

(h) Perform "Monitor Drive Pattern" for the ECT test 

 

(i) After reproducing the malfunction conditions, use the Techstream to check the DTCs and freeze frame

data.

A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...

Last Modified: 9-16-2014

6.6 U

Doc ID: RM000000O8L0RTX

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 -           ]

Title: A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: FAIL-SAFE CHART; 2015 MY

Tundra [08/2014 -        ]

FAIL-SAFE CHART

1. Fail-safe

MALFUNCTIONING PART

FUNCTION

DTC P0717:

Input Speed Sensor NT

During an input speed sensor malfunction, shift control is performed using the

output speed sensor SP2 signal.

During an input speed sensor malfunction, up-shift to 5th and 6th, AI-SHIFT and

flex lock-up clutch control are prohibited.

DTC P0722:

Output Speed Sensor SP2

During an output speed sensor malfunction, shift control is performed using the

input speed sensor NT signal.

During an output speed sensor malfunction, up-shift to 5th and 6th, AI-SHIFT and

flex lock-up clutch control are prohibited.

DTC P0712, P0713:

ATF Temperature Sensor

During an ATF temperature sensor malfunction, up-shift to 5th and 6th, and flex

lock-up clutch control are prohibited.

Shift Solenoid Valve S1,

S2, S3, S4 and SR

The current to the malfunctioning solenoid valve is cut off and control is performed

by operating the other normal solenoid valves.

Shift control is performed depending on the failed solenoid as described in the table

below.

DTC P0748, P0778:

Shift Solenoid Valve SL1

and SL2

During a solenoid valve SL1 or SL2 malfunction, up-shift to 5th and 6th, and flex

lock-up clutch control are prohibited.

DTC P2714, P2716:

Shift Solenoid Valve SLT

During a solenoid valve SLT malfunction, the current to the solenoid valve is

stopped. This stops optimal line pressure control and shift shock increases.

However, shifting is performed using normal clutch pressure control.

DTC P2757, P2759:

Shift Solenoid Valve SLU

During a solenoid valve SLU malfunction, the current to the solenoid valve is

stopped. This stops lock-up control and flex lock-up control, and fuel economy

decreases.

Shift Solenoid Valve Normal Operation Chart

SHIFT

LEVER

POSITION

GEAR

SHIFT

SOLENOID

S1

SHIFT

SOLENOID

S2

SHIFT

SOLENOID

S3

SHIFT

SOLENOID

S4

SHIFT

SOLENOID

SR

SHIFT

SOLENOID

SL1

SHIFT

SOLENOID

SL2

D, S6

1st

OFF

ON

ON

OFF

ON

OFF

ON

2nd

ON

ON

ON

OFF

ON

OFF

ON

3rd

ON

OFF

ON

OFF

ON

OFF

ON

A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...

SHIFT

LEVER

POSITION

GEAR

SHIFT

SOLENOID

S1

SHIFT

SOLENOID

S2

SHIFT

SOLENOID

S3

SHIFT

SOLENOID

S4

SHIFT

SOLENOID

SR

SHIFT

SOLENOID

SL1

SHIFT

SOLENOID

SL2

4th

ON

OFF

OFF

OFF

ON

OFF

ON

5th

ON

OFF

OFF

ON

OFF

ON

OFF

6th

ON

ON

OFF

ON

OFF

ON

OFF

S5

1st

OFF

ON

ON

OFF

ON

OFF

ON

2nd

ON

ON

ON

OFF

ON

OFF

ON

3rd

ON

OFF

ON

OFF

ON

OFF

ON

4th

ON

OFF

OFF

OFF

ON

OFF

ON

5th

ON

OFF

OFF

ON

OFF

ON

OFF

S4

1st

OFF

ON

ON

OFF

ON

OFF

ON

2nd

ON

ON

ON

OFF

ON

OFF

ON

3rd

ON

OFF

ON

OFF

ON

OFF

ON

4th

ON

OFF

OFF

OFF

ON

OFF

ON

S3

1st

OFF

ON

ON

OFF

ON

OFF

ON

2nd

ON

ON

ON

OFF

ON

OFF

ON

3rd

(E/B)

ON

OFF

ON

OFF

ON

OFF

OFF

S2

1st

OFF

ON

ON

OFF

ON

OFF

ON

2nd

(E/B)

ON

ON

ON

ON

ON

OFF

OFF

S1

1st

(E/B)

OFF

ON

ON

OFF

ON

OFF

OFF

(a) Fail-safe operation for electronically malfunctioning shift solenoid valve (S1, S2, S3, S4 and SR).

(1) Fail-safe function

stops sending current to the open or short-circuited solenoid.

Even if starting the engine again in the fail-safe mode, the gear position remains in the same position.

HINT:

SHIFT

LEVER

POSITION

GEAR*

SHIFT

SOLENOID

S1

SHIFT

SOLENOID

S2

SHIFT

SOLENOID

S3

SHIFT

SOLENOID

S4

SHIFT

SOLENOID

SR

SHIFT

SOLENOID

SL1

SHIFT

SOLENOID

SL2

A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...

SHIFT

LEVER

POSITION

GEAR*

SHIFT

SOLENOID

S1

SHIFT

SOLENOID

S2

SHIFT

SOLENOID

S3

SHIFT

SOLENOID

S4

SHIFT

SOLENOID

SR

SHIFT

SOLENOID

SL1

SHIFT

SOLENOID

SL2

D, S6

1st

X

ON

ON

OFF

ON

OFF

ON

1st →

4th

X

ON → OFF

ON → OFF

OFF

ON

OFF

ON

3rd →

4th

X

OFF

ON → OFF

OFF

ON

OFF

ON

4th

X

OFF

OFF

OFF

ON

OFF

ON

5th

X

OFF

OFF

ON

OFF

ON

OFF

N →

5th

X

ON → OFF

OFF

ON

OFF

ON

OFF

S5

1st

X

ON

ON

OFF

ON

OFF

ON

1st →

4th

X

ON → OFF

ON → OFF

OFF

ON

OFF

ON

3rd →

4th

X

OFF

ON → OFF

OFF

ON

OFF

ON

4th

X

OFF

OFF

OFF

ON

OFF

ON

5th

X

OFF

OFF

ON

OFF

ON

OFF

S4

1st

X

ON

ON

OFF

ON

OFF

ON

1st →

4th

X

ON → OFF

ON → OFF

OFF

ON

OFF

ON

3rd →

4th

X

OFF

ON → OFF

OFF

ON

OFF

ON

4th

X

OFF

OFF

OFF

ON

OFF

ON

S3

1st

X

ON

ON

OFF

ON

OFF

ON

1st →

4th

X

ON → OFF

ON → OFF

OFF

ON

OFF

ON

3rd

(E/B)

→ 4th

X

OFF

ON → OFF

OFF

ON

OFF

OFF → ON

S2

1st

X

ON

ON

OFF

ON

OFF

ON

2nd

(E/B)

→ 4th

X

ON → OFF

ON → OFF

ON → OFF

ON

OFF

OFF → ON

S1

1st

(E/B)

X

ON

ON

OFF

ON

OFF

OFF

Shift Solenoid Valve S2 Electrical Malfunction (P0976, P0977)

SHIFT

LEVER

POSITION

GEAR*

SHIFT

SOLENOID

S1

SHIFT

SOLENOID

S2

SHIFT

SOLENOID

S3

SHIFT

SOLENOID

S4

SHIFT

SOLENOID

SR

SHIFT

SOLENOID

SL1

SHIFT

SOLENOID

SL2

A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...