Technical Description (Comment)
WARNING: This page is about a different car, the 2005 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
Is the encrypted code register mode can not be set, the input circuits from the switches described in "CIRCUIT OPERATION " or the ETACS-ECU may be defective.
If the encrypted code register mode can be set but the transmitter can not be registered, the transmitter or the ETACS-ECU may be defective.