Outside Key Antenna

OUTSIDE KEY ANTENNA





Component Function Check
1.CHECK DOOR REQUEST SWITCH
Check door request switch.
- Back door request switch: Back Door Request Switch Coupe.
- Other door request switches: Door Request Switch.
Is the inspection result normal?
YES - GO TO 2.
NO-1 - Check back door request switch. Back Door Request Switch Coupe.
NO-2 - Check other door request switches. Door Request Switch.
2.CHECK FUNCTION
Be sure that Intelligent Key is in each outside key antenna detection area.
Does door lock/unlock when each door request switch is pressed?
YES - Outside key antenna is OK.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between BCM harness connector and ground using oscilloscope.






Is the inspection result normal?
YES - Replace BCM. Removal And Installation
NO - GO TO 2.
2.CHECK OUTSIDE KEY ANTENNA CIRCUIT
1. Disconnect BCM connector and malfunctioning outside key antenna connector.
2. Check continuity between malfunctioning outside key antenna harness connector and BCM harness connector.





3. Check continuity between malfunctioning outside key antenna harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace harness.
3.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2
1. Replace malfunctioning outside key antenna. (New antenna or other antenna)
2. Connect BCM connector and malfunctioning outside key antenna (New antenna or other antenna) connector.
3. Check signal between BCM harness connector and ground using oscilloscope.






Is the inspection result normal?
YES - Replace malfunctioning outside key antenna.
NO - Replace BCM. Removal And Installation.