Steps to Reset the Service Indicator of Audi A6 via CANBUS

1. Go into the ‘Instrument Cluster’ system.

2. Select the ‘adaptation’ option and go into channel 42 and put in 150 as the   number, if not already there.

3. Do the same for channel “43”.
4. Go into channel "41" , put the number as 0.
5. Go into channel "02" , put the number as 0.
6. Modify the internal reminder miles X in channel 42. This is the distance until the next service.
e.g. for changing the miles to “6000km”, X=(15000-6000)/100=90, you need to enter ‘90’.
7. Quit the diagnose software..

Steps to Reset the Service Indicator of BMW 3 E46 Chassis

Switch on the ignition or start engine. There will be ‘OIL SERVICE’ or ‘INSPECTION’  and left distance displayed on the instrument panel for few seconds.Oil Service reset is required if ‘Service’ or ‘INSPECTION’ are displayed all the time and the left distance is near to ‘0’.

Manual Reset Procedure

1. On the left of the instrument panel, press the Reset button.
2. Turn the key on to the ACC position.
3. Wait till ‘OIL Service’ or ‘INSPECTION’ is displayed.
4. Let go of the reset button and then press for 5 seconds, following which ‘RESR’ or ‘RE’ is flashed on the screen. Let go of the RESET button once more and press again until ‘25000km’ is displayed. This completes the reset.

If there is a ‘-‘ displayed as the left distance on the screen and the above method to reset does not work, then the X-431 can be used to reset oil service using the following method.

1.Download the latest software in www.x431.com and then go to the following:
3 seriesà3_E46àInstrument System(KOM)àService ResetàOil Service, Time Inspection, Distance InspectionàReset Succeed.

BMW: Resetting Air Mass Flow Sensor for Diesel Engine

During normal use, the air mass flow meter goes old and also gets soiled. This causes difference between the stored characteristic and the set status which in turn leads to problems like less power or black smoke. To prevent this, the Air Mass Flow Meter adaptation function has been brought into the DDE5.

The DDE control unit does the Air Mass Flow Meter adaptation at two working points: during idle and underload with operation specifications as follows:
Engine speed=1700 – 3000 rpm
Charge – Air Pressure=1100 – 2800 mbar
Speed=90 – 160km/hr
Change in intake – air temperature<2/sec
Change in injection rate < 2mg/stroke/sec
Delay period=3sec

Certain operational data are used to calculate the theoretical air mass flow going through the engine. The DDE compares the data obtained with the air mass flow meter measurement and if the difference between measured level and theoretical level is more than +-8%, the control unit stores this difference as a compensation factor. This helps the control unit to adjust the measured levels prior to being used by the various functions.

Air Mass Flow meter adaptation is a service function which must be dine after the air mass flow meter is changed which resets the stored compensation factors to zero.

Resetting Process:

1. Choose Engine System.
2. Choose ECU marked as DDE5.0.
3. Read the fault memory and check the fault codes present.
4. Clear the fault codes.
5. Choose sensor adjustment which makes the X431 check for faults.
6. The next screen shows the present data about idle speed and load for the Adaptation value.
     Choose ‘YES’ to continue.
7. Choose yes to reset adaptation at the next screen.
8. Turn off ignition for minimum 1 minute and select ‘OK’.
9. The next screen is the end of the reset process. Choose ‘OK’ to return to the Engine Menu.
10.If you want to check if Air Mass has been reset, choose ‘Air Mass Flow Sensor Adjustment’   again which should show 0.0 as the stored data.
11. If any error happens, please report the error number to LaunchTech UK.

Resetting a BMW Brake Warning Light

The brake warning light comes on in some BMW cars when the brake pads wear out and/or are replaced. The method below resets such a warning light on some new BMW 7 series vehicles (E65) with the Launch X431.

Attach the X431 to the car and turn on the scanner. Let the system download the software and initialize itself. The following steps are now to be performed.
1. Please make sure DSC is checked and all stored DTCs are erased before the above process is performed.
2. Choose Coding and Programming à MaintenanceàE65 SeriesàCBS Reset 1.
3. In the displayed functions menu, choose ‘Front Brake’ or ‘Rear Brake’ depending on the one replaced. In case the availability is greater than 80%, a warning screen will come up with option to reset or carry on as is, else the reset will be done automatically without prompting..

Matching the Keys of Nissan Vehicles that have Immobilizers

Description of the Process:

Start the diagnostic program and choose Nissan vehicle. Wait while the X431 downloads the diagnostic program from the CF card after which the screen will show a system menu, choose

Nissan Anti-Theft System:

This program can only diagnose the anti theft system of new protocol.

The following are the main steps required:

During the key registration, the PIN (Personal Identification Number) must be entered. This PIN is unique to every NATS (Nissan Anti Theft System) Immobilizer Control Unit. This PIN is of two types, fixed and arbitrary and can be known from their label on the NATS Immobilizer Control Unit. The fixed PIN is denoted by the letter ‘A’ or no mark on the label and the arbitrary PIN is denoted by the letter ‘B’.

For a fixed PIN type enter the PIN as “5523”. In case of arbitrary PIN type if the car owner is unaware of the PIN, they need to check a 6 digit number at the upper position and a 4 digit number at the lower side of the label. The Nissan dealer needs to be informed about these two numbers.

The initialization of the control unit is compulsory in case of any of the following items are changed:
  1. NATS ignition key.
  2. Immobilizer Control Unit.
  3. ECM
The following steps initialize the control unit:
  1. Select C/U Initializationand then choose C/U initialization mode.
  2. Switch on the ignition.
  3. Type the PIN number.
  4. Choose OK which will execute the initializing process, after completion of which Initialization Completed will come up on the display.

Switch of the ignition and take out the key. The system will not recognize the first key at this stage.
The next step will be matching the key which is accomplished with the following steps:

  1. Once the key is taken out after the previous process, wait for 5 seconds before matching the keys.
  2. Switch on the ignition using the first key but do not start the engine. Keep it like that for at least 5 seconds and then take it out after turning off the ignition. Give another 5 second pause.
  3. Repeat step 2 for any subsequent keys keeping a 5 second gap after each one.

Check for the NATS safety indicator flickering which will mean that key matching and control initialization are complete.

In case there is a message indicating that initialization is failed, this means that there is a failure in the X431 in doing so. The following need to be done in this case:

Switch off the ignition and switch it on again to get the fault code. In case IMMU  shows up on the screen, the steps performed so far need to be repeated.


Assigning Renault (Scenic/Laguna) Key with X431

Keys Procedure:

Connect the X431 to the vehicle and switch it on. Go in to the Renault Megane/Scenic menu.Go in to Engine Immobilizer menu, choose Command and then Key Program. This will bring a pop-up menu prompting to enter access code, which is a 8 digit unique code between 1-8. The Renault dealer can supply this code.Once the code is entered correctly the X431 will say that the command transmission is done, which means that a key can now be assigned. Choose ‘OK’ and then put in the first key and turn ignition on and then off. As all keys need to be assigned at this stage, repeat the process if more than one key needs to be assigned.Once all keys are assigned, choose End of Key Reallocation Validation or Abandon Key Reallocation menu.Once the process is finished, the key allocation is also over. This process must be completed else it becomes invalid.Go into the Remote Key Programming menu, the number of valid keys of the car will be shown on the scanner. Try starting the car and locking/unlocking the doors with each key. If any key starts the engine but does not work on the door lock, go through the fault codes for ‘DF054’ with an active status. Erase this fault code and check for fault codes again. The same fault code should now have status of ‘Memory’. If the key still does not work with the lock, choose ‘Special Note’ from the previous ‘Abandon Key Reallocation’ menu and follow the steps below.In case of the remote control unit not working after the key programming operation, keep the transmitter pressed for more than 10 seconds until the red warning alight on the key goes off, then press it thrice consecutively making the doors lock and unlock.

Due to Renault Laguna II using second generation anti-theft technology, there is a card instead of the key for it.

The following is the key programming procedure for the Laguna II:Connect the X431 to the vehicle and switch on the scanner. Go to the Laguna II menu and choose Engine Immobilizer and then choose Command.Choose Card Programming which will then prompt for entering code which is a 12 digit number. Insert the card when asked for.Select OK which completes the operation for the firs key and prompts for assigning any further cards. Choose YES or NO as per requirement. A maximum of 3 keys can be assigned.

Resetting the Service Interval for SmartThe following steps need to be performed.
  1. Turn on ignition.
  2. Within 4 seconds, choose the maintenance indicator.
  3. Turn off the ignition within the 10 second display interval. This keeps the maintenance indicator in display.
  4. Press and hold the service button of dashboard and turn on ignition.
  5. Keep the service button of dashboard pressed for a further 10 seconds.The maintenance indicator remains constantly in display in this interval and then the oil change display interval is reset.
  6. Once this process is complete, the display has the remaining distance for the next maintenance interval.. 
Resetting Service Indicator of VW TOURAN via CANBUS Connection 

1. Go into the ‘Instrument Cluster’ system. 
2. Select the ‘adaptation’ option and go into channel 42 and put in 150 as the   number, if not already there. 
3. Do the same for channel “43”.

4. Go into channel "41", put the number as 0.

5. Go into channel "02", put the number as 0.
6. Modify the internal reminder miles X in channel 42. This is the distance until the next service.
E.g. for changing the miles to “6000km”, X= (15000-6000)/100=90, you need to enter ‘90’.
7. Quit the diagnose software.

Steps to Reset the Service Indicator of PASSAT B6 via CANBUS

1. Go into the ‘Instrument Cluster’ system.
2. Select the ‘adaptation’ option and go into channel 002 and put ‘0’ as the number there which will reset the service light.
3. Repeat the first two steps and then go in to channel ‘043’. Put here the MIN service interval reminder miles. (Please note that 00015 means 15000km, 00019 means 19000km, etc).
4. Repeat the first two steps again and enter the MAX service interval reminder miles.
5. Quit the diagnostic software and turn ignition off for more than 10 seconds.
6. Check if channel ‘043’ still shows the number as ‘00015’. If so, go through step 4 again.

Resetting Toyota Yaw Rate Acceleration Sensor and VSC Light

Electronic Control Brake (ECB) system, which uses the oil pressure brake system, has control over the Steering-assisted Vehicle Stability Control (S-VSC) System, braking assist system and ABS with EBD. The oil pressure brake system and brake power from regenerative braking system is controlled by the ECB depending on the status of operation. This contributes to fuel efficiency and maximizes the potential of regenerative braking power.

Yaw Rate Sensor or Angle Speed Sensor is responsible for checking how much a vehicle deviates from the vertical axis. This shows the degree of stability of the car. Once the deviation angle crosses a certain value, the system takes it to be side slide and activates the VSC controlling. During deviation from the vertical axis, there will be change in the vibration plane of micro tuning fork in sensor. Acceleration sensor is either vertical acceleration sensor in the direction of vehicle advancement and transverse acceleration sensor which is perpendicular to the direction of vehicle movement. These provide parameters of vehicle status used by VSC.

During the malfunctioning of these sensors or after they are changed, there is a need to reset the system. This article demonstrates the reset process and to turn off the problem light with X431. This facility is available in the ‘Work Support’ menu of ABS of Toyota Program. Make use of Toyota -16 connector for non-CANBUS systems; else use CAN BUS II connector.

The following are the steps required to do the above:
1. Go into the ABS menu and choose ‘Clearing Yaw ratio/Acceleration Sensor Zero Point (to ECB)’. A prompt comes up which asks for confirmation and also informs that the VSC/ABS/ECB warning lights will illuminate once this is done and to reference technical documents or get in touch with after sale service to put out these lights. Click YES to proceed. This takes us to the function menu where 3 steps need to be performed with step wise prompts.
2. The next screen prompts that Yaw rate/G Sensor Zero point will be cleared on replacement of Yaw Rate Sensor G Sensor and/or ECU. Choose YES.
3. Keep ignition switch ON and keep in P position when the next screen prompts performing of clearance of Yaw Rate Sensor or G Sensor Zero Point. Choose YES.
4. Finally the screen displays the end of Clear function. Click OK.

The VSC/ABS warning light will be turned on after this process and will not go out by clearing DTC function. C1336 is the DTC showing Yaw sensor being reset. The process to put out the warning light is present under the MODE CHANGE menu and consists of the following:

1. Set ignition switch to ON when the warning light comes on and go in to the WORKING SUPPORT menu of ABS.
2. Go into MODE CHANGE menu and enter check mode.
3. With the X431, choose NO to go into check mode menu. Choose YES to enter check mode.
4. The ABS/VSC/ECB warming light will start blinking. If it does not then go through the process again as mentioned above till the frequency of the light changes from 1Hz to 4Hz.
5. The process should now take about a minute, though it may differ with vehicles.
6. Go into the normal mode now or switch off ignition and the warning light will be put out.

Reprogramming the Diesel Injector of Toyota

For keeping a balance in the Injection quantity deviation between injectors, Toyota has brought a software method for the new common rail system. This makes up for injection quantity deviations between injectors. Precisely they have used a two dimensional code by which each injector has a 30 digit code keeping its own deviation. The deviation is then read by the ECU during assembly and makes up for the deviations. Due to this, small amounts of fuel will give injections at high accuracy.

The following steps need to be performed to reprogram the Diesel Injectors with X431 making sure that Toyota software version must be V31.03 or over.
1. Choose Toyota Software and go in to Engine System.
2. Choose on WORK SUPPORT in the function menu which will make X431 look for all functions present for this system and show it on display.
3. Choose Injector Compensator after which a screen comes with Set Compensation Code used to enter new injector code into ECU and Read Compensation Code used to get every injector code from ECU memory. The injector to perform this process on must be selected.
4. If the injector position is not known due to removal, the Read Compensation Code option can be used and the code can also be saved after this.
5. Set Compensation Code comprises of two parts: Retrieving a code from the stored information and Handwork Input Code which is manual input of code.
6. The Set Compensation Code retrieves codes previously saved by the Read Compensation Code operation. This makes it possible now to match an injector whose code has been saved by using the injector’s position. Handwork Input Code is needed when fitting new injectors storing its code in the ECU. Once the code is saved, it can be checked by using the Read Compensation Code.

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