Toyota Sequoia (2005). Manual - part 279

DIDM2–01

F09750

CG

Tc

DLC3

R01346

Normal System Code

0.25 sec.

0.25 sec.

2 sec.

ON

OFF

ON

OFF

0.5 sec.

0.5 sec.

Codes 11 and 21

4 sec.

1.5 sec.

2.5 sec.

Code 11

Code 21

F09750

CG

Tc

DLC3

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

DI–911

1105

DTC CHECK / CLEAR

USING SST (CHECK WIRE):
1.

CHECK DTC

(a)

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

09843–18040

(b)

Turn the ignition switch to the ON position.

(c)

Read the DTC from the ABS and VSC TRAC warning
lights on the combination meter.

HINT:

If no code appears, inspect the diagnostic circuit, ABS
warning light circuit or VSC TRAC warning  light circuit.

Trouble Area

See page

Tc terminal circuit

DI–1055

ABS warning light circuit

DI–1021

 or 

DI–1025

VSC TRAC warning light circuit

DI–1027

 or 

DI–1031

As examples, the blinking patterns for normal system
code and codes 11 and 21 are shown on the left.

(1)

Codes are explained in the code table on page

DI–921

.

(2)

After completing the check, disconnect terminals Tc
and CG of the DLC3, and turn off the display.

If 2 or more trouble codes are identified at the same time, the
DTCs will be displayed in ascending order.

2.

CHECK TRANSLATE DTC

HINT:
Once the ignition switch is turned off, all DTCs in the translate
ECU are cleared.
(a)

Release the parking brake pedal.

(b)

Check the brake fluid level.

(c)

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

09843–18040

(d)

Read the DTC of the BRAKE warning light.

NOTICE:
When reading DTCs, be sure to be seated in the driver’s
seat and depressing the brake pedal.

Trouble Code (Example Code 42, 44)

ON

OFF

0.5 sec.

0.5 sec.

1.5 sec.

2.5 sec.

4 sec.

Repeat

42

44

D05981

Hand–held
Tester

DLC3

DI–912

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

1106

HINT:

If no code appears, inspect the diagnostic circuit, and
BRAKE warning light circuit.

Trouble Area

See page

Tc terminal circuit

DI–1055

BRAKE warning light circuit

DI–1033

 or 

DI–1038

When the parking brake is applied or the level of the brake
fluid is low, the BRAKE warning light comes on.

If all sensors are normal, a normal system code is output.
(A cycle of 0.25 sec. ON and 0.25 sec. OFF is repeated.)

If 2 or more trouble codes are identified at the same time,
the codes will be displayed in ascending order.

USING HAND–HELD TESTER:
3.

CHECK DTC

(a)

Connect the hand–held tester to the DLC3.

(b)

Turn the ignition switch to the ON position.

(c)

Read the DTC by following the prompts on the tester
screen.

HINT:
Refer to the hand–held tester operator’s manual for further de-
tails.

F09750

CG

Tc

DLC3

BR3890

D05981

Hand–held 
Tester

DLC3

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

DI–913

1107

USING SST (CHECK WIRE):
4.

CLEAR DTC

(a)

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

09843–18040

(b)

Turn the ignition switch to the ON position.

(c)

Clear the DTC stored in the ECU by depressing the brake
pedal 8 times or more within 5 seconds.

(d)

Check that the warning light indicates the normal code.

(e)

Remove the SST from the terminals of the DLC3.
SST

09843–18040

HINT:
Cancellation cannot be done by removing the battery cable or
ECU–IG fuse.

USING HAND–HELD TESTER:
5.

CLEAR DTC

(a)

Hook up the hand–held tester to the DLC3.

(b)

Turn the ignition switch to the ON position.

(c)

Operate the hand–held tester to erase the codes.

HINT:
(d)

Please refer to the hand–held tester operator’s manual
for further details.

DIDM3–01

DI–914

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

1108

FREEZE FRAME DATA

1.

FREEZE FRAME DATA

HINT:

Whenever a DTC is detected or the ABS operates, the skid control ECU stores the current vehicle (sen-
sor) state as freeze frame data.

The skid control ECU stores the number of times (maximum: 31) the ignition switch has been turned
from off to the ON position since the last time the ABS was activated. However, if the vehicle was
stopped or at low speed (4.3 mph (7 km/h) or less), or if a DTC is detected, the skid control ECU will
not count the number since then.

Freeze frame data at the time the ABS operates:
The skid control ECU stores and updates data whenever the ABS system operates.
When the ECU stores data at the time a DTC is detected, the data stored when the ABS operated is
erased.

Freeze frame data at the time a DTC is detected:
When the skid control ECU stores data at the time a DTC is detected, no updates will be performed
until the data is cleared.

(a)

Connect the hand–held tester to the DLC3.

(b)

Turn the ignition switch to the ON position.

(c)

From the display on the tester, select the ”FREEZE FRAME DATA”.

Hand–held Tester Display

Measurement Item

Reference Value

VEHICLE SPD

Wheel speed sensor reading

min.: 0 km/h
max.: 326 km/h

STOP LIGHT SW

Stop light switch signal

Stop light switch ON: ON, OFF: OFF

# IG ON

Number of operations of ignition switch ON after
memorizing freeze frame data

0 to 31

MAS CYL PRESS

Master cylinder pressure sensor reading

Brake pedal released: 0.3 to 0.9 V
Brake pedal depressed: 0.8 to 4.5 V

MASS PRESS GRADE

Master cylinder pressure sensor change

–30 to 255 MPa/s

SYSTEM

System status

ABS activated: ABS
VSC/TRC activated: VSC/TRC
BA activated: BA
Fail safe mode activated: FAIL SF
No system activated: NO SYS

YAW RATE

Yaw rate angle sensor reading

–128 to 127

STEERING ANG

Steering sensor reading

Left turn: Increase
Right turn: Drop

THROTTLE

Th ttl

iti

di

Release accelerator pedal: Approx. 0 deg.

THROTTLE

Throttle position sensor reading

Release accelerator  edal: A

rox. 0 deg.

Depress accelerator pedal: Approx. 125 deg.

G (RIGHT & LEFT)

Right and left G

–1.869 to 1.869

G (BACK & FORTH)

Back and forth G

–1.869 to 1.869

VSC / TRC OFF SW

VSC OFF switch signal

TRAC OFF SW ON: ON
                       OFF: OFF

SHIFT POSITION

Shift lever position

FAIL
P,N
R
D
4
3
2
L

TROUBLE CODE

Freeze DTC

min.: 0
max.: 255