Model: Honda CIYTY
Year: January, 2006
Engine Type: L15A1
VIN:LHG00864972027262

Fault Phenomenon:
    According to the information provided by the Repair station, this car was driven there by its owner who asks for the replacement of the full car key. The key cannot be used anymore, the original directional lock had been broken, but the car can be started and driven.
    
Failure Analysis and Diagnosis:
   As to the Honda modes series, the original car was equipped with key security system which needs matching key so as to prevent car being stolen and other functions, use Fcar automotive scan tools to match keys as follow steps:1 Find diagnostic socket position of the car;
2 Use the test line to connect OBD test head and vehicle diagnostic tool main unit respectively;
3 Connect diagnostic socket, move the ignition switch to in gear position;
4 Turn on the power switch of Fcar vehicle diagnostic tool;
Enter into the menu option【Asia】——【Honda】——【V6.2】——【Honda(16 pin)】——【anti-theft system 】——【Please click confirm to detect this system】click【confirm】——【The third generation of anti- theft system】——enter into the third generation of anti- theft system, have【key】refers to the situation that all keys were lost and need to be matched,【Replace immobilizer】means that this car does not have original key ,the equipment for replacing engine and anti-theft master control equipment,the operation steps for programming as below:


Matching of Replacing immobilizer:
Re-matching immobilizer, this function is used for the vehicle to replace ignition switch (please carry out the process by following the operation instructions strictly) click here to continue the next step,
Please keep energizing condition during function test,  do not exit or close machine during operation, so as to avoid causing unknown consequences and click here to continue the next step,
Fcar truck diagnostic tool Interface will show the number of the keys that you want to match for the car, 6 keys at most , click confirm,
Click to enter into the next step 【 close the ignition switch, then open the ignition switch 】,
Input the last six numbers of the Vehicle Identification Number according to prompt, click confirm 【click to enter into the next step】,
Close ignition switch, then open ignition switch,
Close the ignition switch within 17seconds,
Use another key to open the ignition switch within 20 seconds, then open ignition switch within 17 seconds,
Don’t replace key and open the ignition switch within 20 seconds,
Close ignition switch, then open ignition switch,
Whether to extinguish anti-theft lamp? Click 【No】——【Yes】,
Close ignition switch, then open ignition switch,
The registration of immobilizer code has been finished, close ignition switch, check all keys and make sure all of them can start the engine, open ignition switch click 【open】to complete programming

Perform Matching When All Keys of the Car Were Lost
Click Fcar vehicle scanner menu and enter into——【key】
All keys lost,
When the keys was logged in or been deleted, this function make necessary records, one original key at least was needed to reset all key step confirmation,
Input the number of the keys that need to be matching, click conform,
Close ignition switch and use an original key to open ignition switch, click conform after the operation was finished,
Please close ignition switch within 7 seconds and click conform after the operation was finished,
Use each key respectively to open the ignition switch within 20 seconds and open ignition switch within 17 seconds, click conform after the operation was finished,
Don’t replace key and open the ignition switch within 20 seconds, click conform after the operation was finished,
Close ignition switch, then open ignition switch, click conform after the operation was finished,
Check immobilizer indicator light is on or not? If the light is on, then the registration of the key has failed, try again to reset key to close ignition switch, use an original key to open the ignition switch, if the light is off, closing the ignition switch, and using an original key to open the ignition switch, Please click "confirm" to continue,
The registration of the key has finished, close ignition switch, click continue for the next step,
Check all keys and make sure all of them can start the engine and locking/unlocking door-open ignition  key , exit after the operation is finished,
The matching of the keys is finished.

Troubleshooting:
Replace all keys of the car, use Fcar truck  diagnostic scanner, click on its menu to enter into 【anti-theft system】; after finished above steps, then open the key to start engine, the starting of the engine is normal, and fault had been removed
 
 
 
 
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