Sync and Fault solution

If the new key or original car key can not ignite because of something mater(CAS can identify the key but could not start the engine).

the main reason is the DME module and CAS module can not be synchronized. The solution is as follows:

A) Diagnose the DME module. read and clear DTCs. For the DTCs cannot be cleared("EWS manipulation error" usually).

please disconnect the battery more than 5 minutes. and then connect the battery to clear the fault coode of DME module again to ensure no fault code.

B) Clear fault codes (DTCs) of CAS.

C) Synchronize DME and CAS. Synchronization fails prompt can be ignored (or try to start the engine during synchronization).

D) Use original car keys to start the car.

E) If there is a fault. clear DTC and Shadow fault under "special features" before key programming and after keys added.