Toyota Tundra (2015 year). Manual - part 2680

FUNCTION

BEHAVIOR DURING CAN FAILURE

CONTROL

MASTER

1. 

SYSTEM

RELATED

2. 

VEHICLE BEHAVIOR

INDICATOR AND

BUZZER

DIAGNOSTIC

TROUBLE CODE

TAIL Indicator Light

(Turns the TAIL

indicator light on and

off.)

Combination

meter

assembly

1. 

Main body

ECU (driver

side junction

block

assembly)

2. 

The TAIL indicator condition is

maintained.

Nothing

Nothing

HEAD Indicator Light

(Turns the HEAD

indicator light on and

off.)

Combination

meter

assembly

1. 

Main body

ECU (driver

side junction

block

assembly)

2. 

The HEAD indicator condition is

maintained.

Nothing

Nothing

CRUISE Main Indicator

Light

(Turns the CRUISE main

indicator light on and

off.)

Combination

meter

assembly

1. 

ECM

2. 

The cruise main indicator condition

is maintained.

Nothing

Nothing

ABS Warning Light

(Turns the ABS warning

light on and off.)

Combination

meter

assembly

1. 

Brake

actuator

assembly

(skid control

ECU)

2. 

The ABS warning light illuminates.

The ABS warning light

illuminates.

Nothing

VSC OFF Indicator Light

(Turns the VSC OFF

indicator light on and

off.)

Combination

meter

assembly

1. 

Brake

actuator

assembly

(skid control

ECU)

2. 

The VSC OFF indicator condition is

maintained.

Nothing

Nothing

SLIP Indicator Light

(Turns the SLIP

indicator light on and

off.)

Combination

meter

assembly

1. 

Brake

actuator

assembly

(skid control

ECU)

2. 

The slip indicator condition is

maintained.

Nothing

Nothing

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: FAIL-...

FUNCTION

BEHAVIOR DURING CAN FAILURE

CONTROL

MASTER

1. 

SYSTEM

RELATED

2. 

VEHICLE BEHAVIOR

INDICATOR AND

BUZZER

DIAGNOSTIC

TROUBLE CODE

4LO Warning Light

(Turns the 4LO warning

light on and off.)

Combination

meter

assembly

1. 

4WD control

ECU

2. 

The 4LO indicator condition is

maintained.

Nothing

Nothing

4HI Warning Light

(Turns the 4HI warning

light on and off.)

Combination

meter

assembly

1. 

4WD control

ECU

2. 

The 4HI indicator condition is

maintained.

Nothing

Nothing

Passenger Side Seat

Belt Warning Light

(Turns the passenger

side seat belt warning

light on and off.)

Combination

meter

assembly

1. 

Center

airbag

sensor

assembly

2. 

The passenger side seat belt

warning light illuminates.

Nothing

Nothing

Seat Belt Warning

Buzzer

Controls the seat belt

warning buzzer to sound

and not sound according

to the various signals

that are input.

Combination

meter

assembly

1. 

ECM, Main

body ECU

(driver side

junction

block

assembly),

Brake

actuator

assembly

(skid control

ECU),

Center

airbag

sensor

assembly

2. 

The seat belt warning buzzer

condition is maintained.

Nothing

Nothing

Key Reminder Buzzer

Controls the key

reminder buzzer to

sound and not sound

according to the various

signals that are input.

Combination

meter

assembly

1. 

Main body

ECU (driver

side junction

block

assembly)

2. 

The key reminder buzzer does not

sound.

Nothing

Nothing

Parking Brake

Unreleased Warning

Buzzer

Controls the parking

Combination

meter

assembly

1. 

Main body

2. 

The parking brake unreleased

warning buzzer does not sound.

Nothing

Nothing

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: FAIL-...

FUNCTION

BEHAVIOR DURING CAN FAILURE

CONTROL

MASTER

1. 

SYSTEM

RELATED

2. 

VEHICLE BEHAVIOR

INDICATOR AND

BUZZER

DIAGNOSTIC

TROUBLE CODE

brake unreleased

warning buzzer to sound

and not sound according

to the various signals

that are input.

ECU (driver

side junction

block

assembly),

Brake

actuator

assembly

(skid control

ECU)

Door Ajar Driving

Warning Buzzer

Controls the door ajar

driving warning buzzer

to sound and not sound

according to the various

signals that are input.

Combination

meter

assembly

1. 

Main body

ECU (driver

side junction

block

assembly),

Brake

actuator

assembly

(skid control

ECU)

2. 

The door ajar driving warning buzzer

does not sound.

Nothing

Nothing

Sequential Shift Reject

Buzzer

Controls the sequential

shift reject buzzer to

sound and not sound

according to the various

signals that are input.

Combination

meter

assembly

1. 

ECM

2. 

The sequential shift reject buzzer

condition is maintained.

Nothing

Nothing

Alarm Control

(Sounds various

warnings.)

Main body

ECU (driver

side junction

block

assembly)

1. 

ECM, Bus

buffer ECU

2. 

If communication is lost

with the ECM: Alarm

cancellation according to

the engine speed does not

operate.

When communication is

lost with the bus buffer

ECU, warning output does

not operate.

Nothing

U0199

U0208

U1002

U1115

Door Lock Control

(Locks/unlocks the

doors.)

Main body

ECU (driver

side junction

block

assembly)

1. 

ECM,

Combination

meter

assembly,

Center

2. 

If communication is lost

with the combination

meter assembly:

The speed-

sensitive

automatic door

lock function

does not

operate.

The key lock-in

Nothing

U0199

U0208

U1002

U1115

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: FAIL-...

FUNCTION

BEHAVIOR DURING CAN FAILURE

CONTROL

MASTER

1. 

SYSTEM

RELATED

2. 

VEHICLE BEHAVIOR

INDICATOR AND

BUZZER

DIAGNOSTIC

TROUBLE CODE

airbag

sensor

assembly,

Bus buffer

ECU

prevention

unlock function

when the

vehicle is

being driven is

permitted.

When communication is

lost with the ECM:

The shift-linked

automatic door

unlock function

does not

operate.

The shift-linked

automatic door

unlock

switching using

the manual

switch does

not operate.

The key lock-in

prevention

unlock function

when the

engine is

started is

permitted.

When communication is

lost with the center airbag

sensor assembly:

Key-linked lock control

prohibition when the seat

belts are fastened is not

possible.

When communication is

lost with the bus buffer

ECU: KLEG is maintained.

Illumination Control

(Performs illumination

control.)

Main body

ECU (driver

side junction

block

assembly)

1. 

Bus buffer

ECU

2. 

KLEG is maintained.

Nothing

U0199

U0208

U1002

U1115

Power Window Control

(Performs key off power

window control.)

Main body

ECU (driver

side junction

block

1. 

KLEG is maintained.

Nothing

U0199

U0208

U1002

U1115

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: FAIL-...