Toyota Yaw Rate Acceleration Sensor and VSC Light Reset by Launch X431

 

ECB (Electronic Control Brake System), according to the driving status of vehicle and using the oil pressure brake system, controls S-VSC (Steering-assisted Vehicle Stability Control System), braking assist system and ABS equipped with EBD. ECB controls oil pressure brake system and the brake power produced by regenerative braking system according to actual operation status, to put regenerative braking power into fullplay and to enhance fuel efficiency.

Yaw rate sensor(also called angle speed sensor), inspect the deviation of vehicle along the vertical axis. The deviation represents the stability degree of vehicle. If the deviation angle is up to certain threshold value, it indicates that side slide occur or the vehicle has danger of excursion, so at this time VSC controlling will be triggered. When the vehicle deviates from the vertical axis, the vibration plane of micro turning fork in sensor will be changed. Acceleration sensor has two types; vertical acceleration sensor along vehicle advance direction and transverse acceleration sensor vertical to the direction of advance.

The two sensors provide parameters of vehicle status for VSC.When these sensors has malfunction or after these sensors are replaced, it needs to reset.And at same time, VSC light is lit, which has to be extinguished with diagnostic device.Here we discuss how to reset and put out the fault light with X431.The function is available in the working supporting menu of ABS of X431 TOYOTA program. The non-CANBUS systems must be used TOYOTA-16 connector or CAN BUS II connector.

The main procedures are introduced as below:

After entering ABS menu, select “clearing yaw ratio/acceleration sensor zero point (to ECB), and then the screen will prompt a dialog box.

it will prompt that if you want to execute the function, the warning light will be light,and how to extinguish the light. Click [YES] to continue.

Then enter the function menu, there are 3 steps to do, and there are prompts for relative conditions and status for every step. Please follow the instructions.

Note: please operate with ignition switch ON and in P position.

Note: VSC/ABS warning light will be light after doing this operation. The light can’t be cleared by clearing DTC function. The DTC is C1336-yaw sensor is being reset.

The operation for extinguishing warning light is available in MODE CHANGE menu:

1.Turn ignition key ON when warning light is lit.

2.Turn ignition switch ON and enter the WORKING SUPPORT menu of ABS.

3.Under MODE CHANGE menu, make it in check mode.

Operation with X431:

Select NO to enter check mode menu. See fig.8. Click [YES] to enter check mode.

4.Now, ABS/VSC/ECB warning light will be flash. If not, please repeat the operation as mentioned above till the frequency of warning light turn 1Hz to 4Hz.

Note: the frequency of unit time to be set is 1Hz.

5.It will take about 1 minute for the operation, which will be different as different vehicle.

6.Now, enter normal mode (or turn ignition switch OFF to normal mode), the warning light will be extinguished.

Operation with X431:

Click [YES], then it will enter normal mode.

Toyota Crown 2013 All Keys Lost & Remote Programming by Launch X431

This article show a guide on how to use Launch X431 to program keys and remote for Toyota Crown 2013.

Procedures:

Connect Launch X431 to Toyota Crown,and enter the menu to select “Toyota v48.81”

This software can diagnose Powertrain,Chassis and Body system on Toyota vehicles.

Select “16 PIN DLC (Europe and Other)”

Select “Automatically Search”

Select “CROWN,Up to 11/2009”

Select “w/o Smart Key”

Now it will show the vehicle information as below

Select “System Selection”

Select “Immobiliser”

Select “Special Function”

Select “Auto Search Special Function”

Select “All Missing Keys”

It will prompt with the massage:

1.This function will remove all keys

2.You need at least 1 keys or more

There is at least 1 master key.[OK] to continue.

Now,it will prompt you to operate key programming:

1.Program 1 master key

Insert the master key into ignition lock and wait for 5 seconds(Only insert the key to OFF position.Do not turn to ON position)

Insert the master key you programmed,turn ignition switch quickly on and off for 5 times.

If you find the security light off,it mean the programming progress completed.

2.Program 2 Master Keys and 1 Spare Key

Insert the first master key into ignition and wait for about 5 seconds(Only insert the key to OFF position.Do not turn to ON position.)

Insert second master key into ignition and wait for about 5 second (Only insert the key to OFF position.Do not turn to ON position)

Insert third spare key to ignition and wait for about 5 seconds

Insert the first programmed master key.Quickly turn the ignition on and off for 5 times.Then you will find the security light off,it mean programming completed.

3.Program 2 Master Key

Insert the first master key into ignition and wait for about 5 seconds(Only insert the key to OFF position.Do not turn to ON position.)

Insert second master key into ignition and wait for about 5 second (Only insert the key to OFF position.Do not turn to ON position)

Pull out the key from ignition switch.Insert the first programmed master key.Quickly turn the ignition on and off for 5 times.Then you will find the security light off,it mean programming completed.

Then click “OK” to continue

Remotes Programming:

Back to select “Body”

Select “Special Function”

Select “Auto Search Special Function”

Select Wireless Code Registration“

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Step 1:

Now it will prompt you to perform below operations:

1.Ignition on

2.Driver side door is opened and other door are closed.

3.Driver side door is unlocked

Note:The remote programming will fail if the time limit is exceeded for any help

It will prompt you that number of remotes that can be registered is 2

Step 2:

On the next screen,you will have to perform the following operations within 30 seconds

On the remote transmitter,push:

1.Lock and unlock simultaneously for 1 second

2.Within 3 seconds,press either the lock or unlock button again for 1 second

Step 3:

On the remote transmitter,push:

1.Lock and unlock simultaneously for 1 second.

2.Within 3 seconds,press either the Lock or unlock button for 1 second.

After then it will prompt you wireless code registration is complete

Press OK to register another key code,or press cancel to exit this function.

Toyota-Crown-2013-All-Keys-Lost-&-Remote-Programming-by-Launch-X431-22

And if you want to add another remote,just follow the Launch X431 prompt you operate.