Toyota Sequoia (2005). Manual — part 275
DI939–04
Vehicle Brought to Workshop
Customer Problem Analysis
P.
Check and Clear DTC
P.
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.
Symptom
does not occur
Symptom
occurs
DTC Check
P.
Sensor Check
Circuit Inspection
DTC Chart
P.
Trouble code
Problem Symptoms Table
Check for Fluid Leakage
P.
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:
–
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
).
If the VSC buzzer does not sound, check for yaw rate and
deceleration sensor failure (See page
(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.
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