Toyota Sequoia (2005). Manual - part 281

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

DI–919

1113

2.

ACTIVE TEST

HINT:
Performing the ACTIVE TEST using the hand–held tester allows the relay, actuator, etc. to operate without
removing any parts. Performing the ACTIVE TEST as the first step of troubleshooting is one of the methods
to shorten labor time.
It is possible to display the DATA LIST during the ACTIVE TEST.
(a)

Connect the hand–held tester to the DLC3.

(b)

Turn the ignition switch to the ON position.

(c)

According to the display on the tester, perform the ACTIVE TEST.

HINT:
The Ignition switch must be turned to the ON position to proceed to the ACTIVE TEST using the hand–held
tester.

Item

Vehicle Condition / Test Details

Diagnostic Note

SFRR

Turns ABS solenoid (SFRR) ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SFRH

Turns ABS solenoid (SFRH) ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SFLR

Turns ABS solenoid (SFLR) ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SFLH

Turns ABS solenoid (SFLH) ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SRRR

Turns ABS solenoid (SRRR) ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SRRH

Turns ABS solenoid (SRRH) ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SRLR

Turns ABS solenoid (SRLR) ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SRLH

Turns ABS solenoid (SRLH) ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SRMR (SMCR, STR)

Turns TRAC solenoid (SRMR) ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SRMF (SMCF, SA3)

Turns TRAC solenoid (SRMF) ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SRCR (SA2)

Turns TRAC solenoid (SRCR) ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SRCF (SA1)

Turns TRAC solenoid (SRCF) ON / OFF

Operation of solenoid
(clicking sound) can be
heard

ABS MOT RELAY

Turns ABS motor relay ON / OFF

Operation of motor (click-
ing sound) can be heard

ABS WARN LIGHT

Turns ABS warning light ON / OFF

Observe combination me-
ter

DI–920

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

1114

VSC WARN LIGHT

Turns VSC warning light ON / OFF

Observe combination me-
ter

VSC / TRC OFF IND

Turns VSC / TRAC OFF indicator ON / OFF

Observe combination me-
ter

SLIP INDI LIGHT

Turns SLIP indicator light ON / OFF

Observe combination me-
ter

BRAKE WRN LIGHT

Turns BRAKE warning light ON / OFF

Observe combination me-
ter

VSC / BR WARN BUZ

Turns VSC / BRAKE warning buzzer ON / OFF

Buzzer can be heard

SFRR & SFRH

Turns ABS solenoid SFRR & SFRH ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SFLR & SFLH

Turns ABS solenoid SFLR & SFLH ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SRH & SRR

Turns ABS solenoid SRH & SRR ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SRLR & SRLH

Turns ABS solenoid SRLR & SRLH ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SFRH & SFLH

Turns ABS solenoid SFRH & SFLH ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SRCF & SRCR

Turns ABS solenoid SRCF & SRCR ON / OFF

Operation of solenoid
(clicking sound) can be
heard

SRMF & SRMR

Turns ABS solenoid SRMF & SRMR ON / OFF

Operation of solenoid
(clicking sound) can be
heard

DI93C–06

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

DI–921

1115

DIAGNOSTIC TROUBLE CODE CHART

NOTICE:

When removing parts, turn the ignition switch OFF.

When replacing the master cylinder, yaw rate and deceleration sensors and/or the ECU, make
sure to perform master cylinder, yaw rate and deceleration sensors’ zero point calibration (See
page 

DI–897

).

HINT:

Using SST 09843–18040, connect terminals Tc and CG.

If no abnormality is found when inspecting parts, inspect the ECU.

If a trouble code is displayed during the DTC check, check the circuit listed for that code. For details
of each code, turn to the page referred to under the ”See page” for respective ”DTC No.” in the DTC
chart.

DTC chart of ABS system:

DTC No.

(See Page)

Detection Item

Trouble Area

C0200/31*

1

(

DI–925

)

Right front wheel speed sensor signal malfunction

C0205/32*

1

(

DI–925

)

Left front wheel speed sensor signal malfunction

Right front, left front, right rear and left rear speed sensor

Each speed sensor circuit

C0210/33*

1

(

DI–925

)

Right rear wheel speed sensor signal malfunction

Each s eed sensor circuit

Speed sensor rotor

Skid control ECU

C0215/34*

1

(

DI–925

)

Left rear wheel speed sensor signal malfunction

C0226/21

(

DI–932

)

Malfunction in ABS & VSC solenoid valves

ABS & VSC actuator

ABS & VSC solenoid circuit

C0278/11

(

DI–934

)

Open or short circuit in ABS & VSC relay circuit

ABS & VSC solenoid relay

ABS & VSC solenoid relay circuit

ABS & VSC motor relay

ABS & VSC motor relay circuit

C1241/41

(

DI–957

)

Low battery positive voltage or abnormally high battery positive

voltage

Battery

Charging system

Power source circuit (+BM, +BS)

Skid control ECU

C1244/44

(

DI–951

)

Open or short circuit in deceleration sensor circuit

Yaw rate (deceleration) sensor

Yaw rate (deceleration) sensor circuit

C1247/47

(

DI–960

)

Malfunction in delta S sensor

Delta S sensor

Delta S sensor circuit

Skid control ECU

Brake booster

C1249/49

(

DI–963

)

Open circuit in stop light switch circuit

Stop light switch

Stop light switch circuit

Skid control ECU

C1251/51*

1

(

DI–966

)

Pump motor is locked

Open circuit in pump motor circuit

ABS & VSC actuator

C1337/37

(

DI–975

)

Some tires are different in size from the other tires

Tire size

Always ON

(

DI–1016

)

Malfunction in skid control ECU

Battery

Charging system

Power source circuit

ABS warning light circuit

Skid control ECU

DI–922

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

1116

*

1

: As long as the following operations are not performed, the ABS warning light will not go OFF only by re-

pairing the trouble area.
(1) Drive the vehicle at 12 mph (20 km/h) for 30 seconds or more and check that the ABS warning light goes
off.
(2) Clear the DTC (See page 

DI–911

).

HINT:
There is a possibility that the hand–held tester cannot be used when the ABS warning light is always ON.
DTC chart of VSC system:

DTC No.

(See Page)

Detection Item

Trouble Area

C1201/51

(

DI–936

)

Engine control system malfunction

Engine control system

C1202/52

(

DI–937

)

Brake fluid level warning switch circuit

Brake fluid level

Brake fluid level warning switch

Brake fluid level warning switch circuit

Skid control ECU

CAN1 communication system

Translate ECU

C1203/53 *

1

(

DI–942

)

Malfunction in CAN1 communication

Skid control ECU

CAN1 communication system

ECM

Translate ECU

C1207/37

(

DI–522

)

Reverse gear signal failure

ECT

C1223/43

(

DI–945

)

Malfunction in ABS control system

ABS control system

C1231/31

(

DI–946

)

Malfunction in steering angle sensor

Steering angle sensor

Steering angle sensor communication circuit

Skid control ECU

Translate ECU

CAN communication system

C1232/32

(

DI–951

)

Malfunction in deceleration sensor

Yaw rate (deceleration) sensor

Yaw rate (deceleration) sensor circuit

C1234/34

(

DI–954

)

Malfunction in yaw rate sensor

Yaw rate (deceleration) sensor

Yaw rate (deceleration) sensor circuit

C1310/11

(

DI–969

)

Open or short circuit in active brake booster solenoid circuit

Brake booster

Active brake booster solenoid circuit

C1311/12

(

DI–971

)

Open or short circuit in brake inhibit relay circuit

Brake inhibit relay

Brake inhibit relay circuit

1335/35

(

DI–946

)

Malfunction in steering angle sensor communication circuit

Steering angle sensor

Steering angle sensor communication circuit

Skid control ECU

Translate ECU

CAN1 communication system

C1340/47*

2

(

DI–977

)

Center diff. lock circuit malfunction

Center diff. lock position switch

Center diff. lock position switch circuit

Center diff. lock indicator light circuit

Translate ECU

C1360/61

(

DI–983

)

Malfunction in master cylinder pressure sensor

Master cylinder pressure sensor

Master cylinder pressure sensor circuit