Check Inside Key Antenna

INTELLIGENT KEY SYSTEM


Check Inside Key Antenna

1.CHECK INSIDE KEY ANTENNA FUNCTION
With CONSULT-III
1. Check the operation with ("ANTENNA") in the ACTIVE TEST.
2. Touch "ROOM ANT1" "ROOM ANT2" "ROOM ANT3" "LUG ANT" on screen.
3. Carry the Intelligent Key into the antenna detection area.





Do the hazard lamps flash?
Yes - Inside key antenna is OK.
No - GO TO 2.
2.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with oscilloscope.










OK or NG
OK - Check the condition of harness and connector.
NG - GO TO 3.
3.CHECK INSIDE KEY ANTENNA CIRCUIT
1. Disconnect Intelligent Key unit and inside key antenna connector.
2. Check continuity between Intelligent Key unit connector and inside key antenna connector.











3. Check continuity between Intelligent Key unit connector and ground.





OK or NG
OK - GO TO 4.
NG - Repair or replace harness between Intelligent Key unit and inside key antenna.
4.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2
1. Replace inside key antenna. (New antenna or other antenna)
2. Connect Intelligent Key unit and inside key antenna connector.
3. Check signal between Intelligent Key unit connector and ground with oscilloscope.










OK or NG
OK - Replace malfunction inside key antenna.
NG - Replace Intelligent Key unit.