Power Source Mode does not Change to ON (IG and ACC) (07/2015 -): Description

If any of the following operations are performed, the certification ECU (smart key ECU assembly) receives a signal, and changes the power source mode.

With the electrical key transmitter sub-assembly in the cabin, the engine switch is pressed.
When the battery of the electrical key transmitter sub-assembly is depleted, the brake pedal is depressed and the electrical key transmitter sub-assembly is held near the engine switch.
When the smart access system with push-button start cancel function has been turned on the customization menu, the brake pedal is depressed and the electrical key transmitter sub-assembly is held near the engine switch.

HINT:

When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
If the room oscillator does not recognize the electrical key transmitter sub-assembly, the cause of the malfunction may be stored in the certification ECU (smart key ECU assembly) (Refer to OPERATION HISTORY LIST (07/2015 -) ).
If the cause of the malfunction is stored in the certification ECU (smart key ECU assembly), the following table is helpful in checking whether the malfunction was caused by wave interference.

RADIO WAVE INTERFERENCE:

Parameter Name	Cause of Problem and Countermeasure
Operating Engine Switch / Key RF Signal Interference	When the engine switch was operated, the electrical key transmitter sub-assembly could not be confirmed due to wave interference. Therefore, the output frequency was switched to the other channel (changed from channel 1 to channel 2 or from channel 2 to channel 1). If the cause of the malfunction has not been stored but any devices that can cause wave interference in the cabin have been removed and the room oscillator successfully recognizes the electrical key transmitter sub-assembly, the possibility of wave interference is high.

Parameter Name

Cause of Problem and Countermeasure

Operating Engine Switch / Key RF Signal Interference

When the engine switch was operated, the electrical key transmitter sub-assembly could not be confirmed due to wave interference. Therefore, the output frequency was switched to the other channel (changed from channel 1 to channel 2 or from channel 2 to channel 1).
If the cause of the malfunction has not been stored but any devices that can cause wave interference in the cabin have been removed and the room oscillator successfully recognizes the electrical key transmitter sub-assembly, the possibility of wave interference is high.