Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

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Link: lemon-manuals.la or lemon-manuals.org.ua

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Self Diagnosis Functions


Self-diagnosis Function Outline
^ When the self-diagnosis function is operated, the keyless unit sends signals to the CPU the activate the output device. The signals are sent in the following order: Buzzer --> Trunk unlock --> All doors lock --> Driver's door unlock --> Passenger's and rear door unlock
^ The CPU determines the number of times the buzzer sounds according to the input situation.





Flow of self-diagnosis
To start the self-diagnosis function, complete the procedure below within 180 seconds.





Output device operation check
The keyless unit sends a signal to the CPU and the CPU activates the device every 3 seconds in the following steps.





Failure indication
The number of times the CPU buzzer sounds indicates whether or not the keyless unit and CPU are communicating properly.