Toyota Sequoia (2005). Manual - part 275

DI939–04

Vehicle Brought to Workshop

Customer Problem Analysis

P. 

DI–896

Check and Clear DTC

P. 

DI–911

Items inside

are titles of pages in this manual,

with the page number in the bottom portion. See
the pages for detailed explanations.

Problem Symptom Confirmation

Symptom Simulation

P. 

IN–24

Symptom
does not occur

Symptom
occurs

DTC Check

P. 

DI–911

Sensor Check

Circuit Inspection

DTC Chart

P. 

DI–921

Trouble code

Problem Symptoms Table

P. 

DI–905

Check for Fluid Leakage

P. 

DI–1059

Identification of Problem

Normal system code

Repair

Confirmation Test

End

1

2

3

4

5

6

7

8

9

10

11

Step 2, 5, 8, 9, 11:

P. 

DI–925

 – 

DI–1057

Diagnostic steps permitting use of the
hand–held tester.

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

DI–895

1089

HOW TO PROCEED WITH TROUBLESHOOTING

Troubleshoot in accordance with the following procedures:

DI93A–03

Inspector’s

Name

:

Customer’s Name

Registration Date

Registration No.

Frame No.

Odometer Reading

/              /

/              /

Frequency Problem Occurs

/                            /

Continuous

Intermittent (       times a day)

Remains ON

Does not Light Up

DTC Check

1st Time

2nd Time

Normal System Code

Trouble Code (Code         )

Symptoms

km

miles

Check Item

Normal

ABS does not operate.

ABS does not operate efficiently.

Does not Light Up

ABS & BA & TRAC & VSC Check Sheet

VSC does not operate. (Wheels sideslip when turning sharply.)

ABS Warning Light
Abnormal

Remains ON

Does not Light Up

Remains ON

Does not Light Up

Remains ON

Does not Light Up

Remains ON

Does not Light Up

TRAC OFF Indicator
Light Abnormal*

1

SLIP Indicator
Light Abnormal

VSC TRAC Warning
Light Abnormal

BRAKE Warning
Light Abnormal

Malfunction 
Indicator Light

TRAC does not operate. (Wheels spin when starting off rapidly.)

Remains ON

Does not Light Up

VSC OFF Indicator
Light Abnormal*

2

BA does not operate

Normal System Code

Trouble Code (Code         )

DI–896

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

1090

CUSTOMER PROBLEM ANALYSIS CHECK

     *

1

: Only for 2WD

      *

2

: Only for 4WD

DIDLY–01

F09750

DLC3

Ts

Tc

CG

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

DI–897

1091

CALIBRATION

1.

ZERO POINT CALIBRATION OF MASTER CYLINDER
PRESSURE, YAW RATE AND DECELERATION SEN-
SORS

HINT:
When having replaced the master cylinder pressure, yaw rate
and deceleration sensors and/or the ECU, make sure to per-
form master cylinder pressure, yaw rate and deceleration sen-
sors’ zero point calibration.
NOTICE:

While obtaining the zero point, do not vibrate the ve-
hicle by tilting, moving or shaking it and keep it in a
stationary condition. (Do not start the engine.)

Be sure to do this on a level surface (within an inclina-
tion of 1 degree).

(a)

Perform master cylinder pressure, yaw rate and decelera-
tion sensors zero point calibration.
(1)

Using SST, connect terminals Ts and CG of the
DLC3.

SST

09843–18040

(2)

Shift the shift lever to the P position.

(3)

Turn the ignition switch to the ON position.

(4)

Keep the vehicle in a stationary condition on a level
surface for 4 sec. or more.

(5)

Keep your foot off the brake pedal.
Do not leave 4WD vehicles in the L4 position.

(6)

Press the center diff. lock (TRAC OFF) switch 3
times within 3 seconds.

(7)

Check that the VSC buzzer sounds for 3 seconds.

HINT:

If the VSC buzzer does not sound, do the zero point cal-
ibration again and/or check the VSC buzzer circuit (See
page 

DI–1052

).

If the VSC buzzer does not sound, check for yaw rate and
deceleration sensor failure (See page 

DI–911

).

(8)

Turn the ignition switch OFF.

(9)

Disconnect terminals Ts and CG of the DLC3.

(b)

Perform steering angle sensor zero point calibration.
This calibration is carried out automatically by following
procedures below:
(1)

Make sure the system is not in sensor check mode.

(2)

Calibrate the steering angle sensor by driving the
vehicle in a straight line at more than 7 MPH (12
km/h) for 5 seconds.

DI–898

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

1092

(3)

Stop the vehicle. Use the hand–held tester to check
that the steering angle value on the DATA LIST in-
creases when the steering wheel is turned left, and
decreases when turned right.

(4)

Turn the ignition switch OFF.

HINT:

If the steering angle reads 1,150 degrees when the steer-
ing wheel is in any position, the sensor has not been cali-
brated.

Carry out the calibration procedure again.

DTC C1362/36 will be output from the skid control ECU
if the skid control ECU is replaced with a new one and/or
sensor calibration is not performed.

DTC C1362/36 will be deleted when sensor calibration is
complete.