Toyota Tundra. Manual — part 922

FR Wheel VSC Ctrl

Status

Front wheel RH VSC

control status /ON or

OFF

ON: During control

OFF: Not during control

-

FL Wheel VSC Ctrl

Status

Front wheel LH VSC

control status/ON or

OFF

ON: During control

OFF: Not during control

-

RR Wheel VSC Ctrl

Status

Rear wheel RH VSC

control status/ON or

OFF

ON: During control

OFF: Not during control

-

RL Wheel VSC Ctrl

Status

Rear wheel LH VSC

control status/ON or

OFF

ON: During control

OFF: Not during control

-

Engine Revolutions

Engine revolutions/min.:

0 rpm, max.: 65535 rpm

Min.: 0 rpm

Max.: 65535 rpm

-

Real engine Torque

Real engine torque/min.:

-1024 N*m, max.: 1023

N*m

Min.: -1024 N*m,

Max.: 1023 N*m

-

Solenoid Relay

Solenoid relay/ON or

OFF

ON: Solenoid relay ON

OFF: Solenoid relay

OFF

-

Electronically

Controlled Brake

System Motor Relay

Electronically controlled

brake system motor

relay/ON or OFF

ON: Motor relay ON

OFF: Motor relay OFF

-

TR(A)C/VSC Solenoid

(SM2)

TRACA/SC solenoid

(SM2)/ON or OFF

ON: Operates

OFF: Does not operate

-

TR(A)C/VSC Solenoid

(SM1)

TRACA/SC solenoid

(SM1)/ON or OFF

ON: Operates

OFF: Does not operate

-

TR(A)C/VSC Solenoid

(SRC2)

TRACA/SC solenoid

(SRC2)/ON or OFF

ON: Operates

OFF: Does not operate

-

TR(A)C/VSC Solenoid

(SRC1)

TRACA/SC solenoid

(SRC1)/ON or OFF

ON: Operates

OFF: Does not operate

-

ABS Solenoid (SFRH)

*1

ABS solenoid

(SFRH)/ON or OFF

ON: Operates

OFF: Does not operate

-

ABS Solenoid (SFRR)

*2

ABS solenoid

(SFRR)/ON or OFF

ON: Operates

OFF: Does not operate

-

ABS Solenoid (SFLH)

*3

ABS solenoid

(SFLH)/ON or OFF

ON: Operates

OFF: Does not operate

-

ABS Solenoid (SFLR)

*4

ABS solenoid

(SFLR)/ON or OFF

ON: Operates

OFF: Does not operate

-

ABS Solenoid (SRRH)

*5

ABS solenoid

(SRRH)/ON or OFF

ON: Operates

OFF: Does not operate

-

ABS Solenoid (SRRR)

*6

ABS solenoid

(SRRR)/ON or OFF

ON: Operates

OFF: Does not operate

-

ABS Solenoid (SRLH)

*7

ABS solenoid

(SRLH)/ON or OFF

ON: Operates

OFF: Does not operate

-

2009 Toyota Tundra

2009 BRAKES Brake Control - Tundra

2. PERFORM ACTIVE TEST

HINT:

Using the Techstream to perform the Active Tests allows relays, VSVs and 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. Connect the Techstream to the DLC3.

b. Turn the ignition switch to ON.

c. Turn the Techstream on.

d. Perform the Active Test according to the display on the Techstream.

HINT:



The ignition switch must be turned ON to proceed to the Active Test using the Techstream.



The Active Tests of the ABS solenoid, ABS motor relay, ABS warning light and BRAKE
warning light are available when the vehicle is stopped.



The motors stop automatically after 5 seconds of activation to prevent them from being
damaged. When the motors are driven repeatedly, certain intervals are required.

ABS Solenoid (SRLR)

*8

ABS solenoid

(SRLR)/ON or OFF

ON: Operates

OFF: Does not operate

-

TRACA/SC off Mode

TRAC and VSC OFF

mode status/0, 1 or 3

0: Normal

1: TRAC OFF mode

2: VSC OFF mode

(4WD mode)

3: VSC OFF mode

(2WD mode)

-

Number of DTC

Number of DTCs/min.:

0, max.: 255

Min.: 0

Max.: 255

-

HINT:



*1: SFRH (S: Solenoid, F: Front, R: Right, H: Holding)



*2: SFRR (S: Solenoid, F: Front, R: Right, R: Reduction)



*3: SFLF (S: Solenoid, F: Front, L: Left, H: Holding)



*4: SFLR (S: Solenoid, F: Front, L: Left, R: Reduction)



*5: SRRH (S: Solenoid, R: Rear, R: Right, H: Holding)



*6: SRRR (S: Solenoid, R: Rear, R: Right, R: Reduction)



*7: SRLH (S: Solenoid, R: Rear, L: Left, H: Holding)



*8: SRLR (S: Solenoid, R: Rear, L: Left, R: Reduction)

2009 Toyota Tundra

2009 BRAKES Brake Control - Tundra



Each solenoid stops automatically after 2 seconds of activation to prevent them from being
damaged, and can be operated again after a certain interval.



Do not depress the brake pedal while only the pressure reduction solenoid valves are on.



Do not drive 2 or more solenoids simultaneously except to operate the pressure holding
solenoid valves and pressure reduction solenoid valves of each wheel.

ABS/VSC/TRAC:

DIAGNOSTIC NOTE TABLE

Tester Display

Test Part

Control Range

Diagnostic Note

ABS Warning Light

ABS warning light

ON/OFF

Observe combination

meter

VSC Warning Light

VSC OFF indicator

light

ON/OFF

Observe combination

meter

Brake Warning Light

Brake warning light

ON/OFF

Observe combination

meter

Slip Indicator Light

SLIP indicator light

ON/OFF

Observe combination

meter

Auto LSD Indicator

Light

AUTO LSD indicator

light

ON/OFF

Observe combination

meter

Buzzer

Skid control buzzer

ON/OFF

Buzzer can be heard

Motor Relay

ABS motor relay

ON/OFF

Operation sound of
motor can be heard

Stop Light Relay

Stop light operation

relay

ON/OFF

Observe rear

combination light

(stop light) (Does not

come on for 5 sec. or

more)

ABS Solenoid (SRLR) ABS solenoid (SRLR)

ON/OFF

Operation sound of

solenoid (clicking

sound) can be heard

ABS Solenoid (SRLH) ABS solenoid (SRLH)

ON/OFF

Operation sound of

solenoid (clicking

sound) can be heard

ABS Solenoid (SRRR) ABS solenoid (SRRR)

ON/OFF

Operation sound of

solenoid (clicking

sound) can be heard

ABS Solenoid

(SRRH)

ABS solenoid (SRRH)

ON/OFF

Operation sound of

solenoid (clicking

sound) can be heard

ABS Solenoid (SFLR) ABS solenoid (SFLR)

ON/OFF

Operation sound of

solenoid (clicking

sound) can be heard

ABS Solenoid (SFLH) ABS solenoid (SFLH)

ON/OFF

Operation sound of

solenoid (clicking

2009 Toyota Tundra

2009 BRAKES Brake Control - Tundra

DIAGNOSTIC TROUBLE CODE TABLE

HINT:



If no abnormality is found when inspecting parts, check the skid control ECU and check for poor contact
at ground points.



If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For
details of the code, refer to the table below.



When 2 or more DTCs are detected, perform each circuit inspection until the problem is identified.



All DTCs in the table below are detected in accordance with 1 trip detection logic.

1. DTC TABLE OF ABS

DTC TABLE

sound) can be heard

ABS Solenoid (SFRR) ABS solenoid (SFRR)

ON/OFF

Operation sound of

solenoid (clicking

sound) can be heard

ABS Solenoid (SFRH) ABS solenoid (SFRH)

ON/OFF

Operation sound of

solenoid (clicking

sound) can be heard

VSC/TRAC Solenoid

(SRMR)

VSC/TRAC solenoid

(SRMR)

ON/OFF

Operation sound of

solenoid (clicking

sound) can be heard

VSC/TRAC Solenoid

(SRMF)

VSC/TRAC solenoid

(SRMF)

ON/OFF

Operation sound of

solenoid (clicking

sound) can be heard

VSC/TRAC Solenoid

(SRCR)

VSC/TRAC solenoid

(SRCR)

ON/OFF

Operation sound of

solenoid (clicking

sound) can be heard

VSC/TRAC Solenoid

(SRCF)

VSC/TRAC solenoid

(SRCF)

ON/OFF

Operation sound of

solenoid (clicking

sound) can be heard

NOTE:

When removing any parts, turn the ignition switch OFF.

DTC Code

Detection Item

Trouble Areas

C0200/31

Right Front Wheel Speed Sensor
Signal



Front speed sensor



Front speed sensor circuit



Sensor installation



Foreign matter on sensor
rotor



Front speed sensor

2009 Toyota Tundra

2009 BRAKES Brake Control - Tundra