Clear Dtc Using Intelligent Tester

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a. Hook up the intelligent tester to the DLC3.

b. Turn the ignition switch to the ON position.

c. Operate the intelligent tester to erase the codes.

HINT:

Please refer to the intelligent tester operator's manual for further details.

Fig. 23: Connecting Intelligent Tester To DLC3 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 (sensor) 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.

2007 BRAKES Brake Control - Sequoia

• 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 intelligent 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".

FREEZE FRAME DATA

Intelligent 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

Throttle position sensor reading

Release accelerator pedal: Approx. 0 deg. Depress accelerator pedal: Approx. 125 deg.

G (RIGHT and LEFT)

Right and left G

-1.869 to 1.869

G (BACK and 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

FAIL

2007 BRAKES Brake Control - Sequoia

SHIFT POSITION

Shift lever position

P, N R D 4 3 2 L

TROUBLE CODE

Freeze DTC

min.: 0 max.: 255

# CODES

Number of trouble codes

min.: 0 max.: 255

PEDAL STROKE

Pedal stroke sensor reading

min.: 0 V max.: 5.1 V

STROKE GRADE

Pedal stroke sensor change

min.: -2560 max.: 2550

SPD GRADE

Speed sensor grade

min.: -1.869 max.: 1.869

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